UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 20142015

Or

For the transition period fromto

(Commission File Number) 000-30419

ON SEMICONDUCTOR CORPORATION

(Exact name of registrant as specified in its charter)

5005 E. McDowell Road

Phoenix, AZ 85008

(602) 244-6600

(Address, zip code and telephone number, including area code, of principal executive offices)

Securities Registered Pursuant to Section 12(b) of the Act:

Securities Registered Pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes  x    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant was $3,982,333,746$4,783,105,387 as of June 27, 2014,July 3, 2015, based on the closing sales price of such stock on the NASDAQ Global Select Market. Shares held by executive officers, directors and persons owning directly or indirectly more than 10% of the outstanding common stock (as applicable) have been excluded from the preceding number because such persons may be deemed to be affiliates of the registrant.

The number of shares of the registrant’s common stock outstanding at February 20, 201517, 2016 was 431,315,129412,095,180.

Documents Incorporated by Reference

Portions of the registrant’s Proxy Statement relating to its 20152016 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A within 120 days after the registrant’s fiscal year end December 31, 20142015 are incorporated by reference into Part III of this Form 10-K.

ON SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

FORM 10-K

TABLE OF CONTENTS

(See the glossary immediately following this table of contents for definitions of certain abbreviated terms)

ON SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

FORM 10-K

GLOSSARY OF SELECTED ABBREVIATED TERMS*

Abbreviated Term		Defined Term
HV FETS		High voltage MOSFETs
IC		Integrated circuit
IGBT		Insulated-gate bipolar transistor
IoT		Internet-of-Things
IP		Intellectual property
IPD		Integrated passive devices
IPRD		In-process research and development
IPM		Integrated power module
ISBU		Image sensor business unit
IR		Infrared
KSS		System Solutions Group back-end manufacturing facility in Hanyu, Japan
LDOs		Low drop out regulator controllers
LED		Light-emitting diode
LSI		Large scale integration
MOSFET		Metal oxide semiconductor field effect transistor
Motorola		Motorola Inc.
MVFETS		Medium voltage MOSFETS
nm		Nanometer
OEM		Original equipment manufacturers
OPAmps		Operational amplifiers
PC		Personal computer
PIMs		Power integrated modules
PSRR		Power supply rejection ratio
PulseCore		PulseCore Holdings (Cayman) Inc.
RF		Radio frequency
RSU		Restricted Stock Unit
SANYO Electric		SANYO Electric Co., Ltd.
SANYO Semiconductor		SANYO Semiconductor Co., Ltd.
SCI LLC		Semiconductor Components Industries, LLC
SEC		Securities and Exchange Commission
SDTSecurities Act		Sound Design Technologies Ltd. Securities Act of 1933, as amended
SMBC		Sumitomo Mitsui Banking Corporation
SoC		System on chip
TMOS		T-metal oxide semiconductor
Truesense		Truesense Imaging, Inc.
UPS		Uninterruptible power supplies
VCORE		Core voltage
VREG		Voltage regulator
WSTS		World Semiconductor Trade Statistics

* Terms used, but not defined, within the body of the Form 10-K are defined in this Glossary.

PART I

Item 1.Business

Business Overview

ON Semiconductor Corporation and its subsidiaries (“we,” “us,” “our,” “ON Semiconductor,” or the “Company”) is driving innovation in energy efficient electronics. Our extensive portfolio of analog, digital and mixed signal ICs, standard products, image sensors and custom devices helps customers efficiently solve their design challenges in advanced electronic systems and products. Our power management and motor driver semiconductor components control, convert, protect and monitor the supply of power to the different elements within a wide variety of electronic devices. Our custom ASICs use analog, DSP, mixed-signal and advanced logic capabilities to act as the brain behind many of our automotive, medical, military/aerospace,aerospace/defense, consumer and industrial customers’ products. Our signal management semiconductor components provide high-performance clock management and data flow management for precision computing, communications and industrial systems. Our image sensors, optical image stabilization and auto focus devices provide advanced imaging solutions for automotive, wireless, industrial and consumer applications. Our standard semiconductor components serve as “building blocks” within virtually all types of electronic devices. These various products fall into the logic, analog, discrete, image sensors and memory categories used by the WSTS group.

We serve a broad base of end-user markets, including automotive, communications, computing, consumer electronics, medical, industrial electronics, networking and military/aerospace.aerospace/defense. Our devices are found in a wide variety of end-productsend products including automotive electronics, smartphones, media tablets, wearable electronics, personal computers, servers, industrial building and home automation systems, consumer white goods, advanced imaging systems, LED lighting, power supplies, networking and telecom equipment, medical diagnostics, imaging and hearing health, sensor networks and the IoT.

Our portfolio of devices enables us to offer advanced ICs and the “building block” components that deliver system level functionality and design solutions. Our extensive product portfolio consisted of approximately 48,00050,000 products in 20142015, and we shipped approximately 49.0 billion units in 2015 as compared to 48.2 billion units in 2014 as compared to 42.4 billion units in 2013.2014. We offer micro packages, which provide increased performance characteristics while reducing the critical board space inside today’s ever shrinking electronic devices and power modules, delivering improved energy efficiency and reliability for a wide variety of high power applications. We believe that our ability to offer a broad range of products, combined with our global manufacturing and logistics network, provides our customers with single source purchasing on a cost-effective and timely basis.

Effective for the third quarter of 2014, we announced a change in the way we report our segment information. Previously reported information has been recast to reflect the current reportable segments. We are currently organized into four operating segments, which also represent four reporting segments: Application Products Group, Image Sensor Group, Standard Products Group, and System Solutions Group. Our Image Sensor Group was established during the third quarter of 2014 as a reporting segment, which includes our recent image sensor business acquisition of Aptina, along with our existing image sensor business units, including Truesense, which were previously reported as part of our Application Products Group. The Image Sensor Group is currently undergoing operational integration to combine Aptina with our previously existing image sensor business units. Each of our major product lines has been assigned to a segment, as illustrated in the table below, based on our operating strategy.

From time to time, we reassess the alignment of our product families and devices to our operating segments and may move product families or individual devices from one operating segment to another.

We currently have domestic design operations in Arizona, California, Idaho, Minnesota, New York, Oregon, Pennsylvania, Rhode Island, Texas and Utah. We also have foreign design operations in Belgium, Canada, China, the Czech

Republic, France, Germany, India, Ireland, Japan, Korea, Philippines, Romania, Slovakia, Slovenia, Switzerland and Taiwan. Additionally, we currently operate domestic manufacturing facilities in Idaho, New York and Oregon and have foreign manufacturing facilities in Belgium, Canada, China, Czech Republic, Japan, Malaysia, Philippines and Vietnam. We also have global distribution centers in China, Japan, Philippines and Singapore.

Company Highlights for the year ended December 31, 20142015

Recent Company Mergers and Acquisitions

We have historically pursued strategic acquisitions to leverage our existing capabilities and further build our business. Such activities continued during 2015.

Pending Acquisition of Fairchild

On November 18, 2015, we entered into an Agreement and Plan of Merger (the “Fairchild Agreement”), with each of Fairchild Semiconductor International, Inc., a Delaware corporation (“Fairchild”), and Falcon Operations Sub, Inc., a Delaware corporation and our wholly-owned subsidiary, which provides for a proposed acquisition of Fairchild by us (the “Fairchild Transaction”). The total transaction value is expected to be approximately $2.4 billion.

Pursuant to the terms and conditions set forth in the Fairchild Agreement, we, through Falcon Operations Sub, Inc., have commenced an offer (the “Offer”) to acquire all of the outstanding shares of Fairchild’s common stock, par value $0.01 per share (the “Shares”), for $20.00 per share in cash, without interest (the “Offer Price”). The Offer is subject to certain conditions, including the tender of at least a majority of the then outstanding Shares. Following successful completion of the Offer and subject to the satisfaction or waiver of certain conditions set forth in the Fairchild Agreement, including the receipt of certain required regulatory approvals, Falcon Operations Sub, Inc. will be merged with and into Fairchild, with Fairchild surviving as our wholly-owned subsidiary (the “Merger”). At the effective time of the Merger (the “Effective Time”), each outstanding Share (other than Shares held by (i) ON Semiconductor, Fairchild or their respective subsidiaries immediately prior to the Effective Time and (ii) stockholders of Fairchild who properly exercised their appraisal rights under the Delaware General Corporation Law) will be canceled and automatically converted into the right to receive an amount in cash equal to the Offer Price. In addition, immediately prior to the Effective Time, all outstanding options to purchase Shares, restricted stock units, deferred stock units and performance units will become fully vested and be converted into the right to receive the Offer Price (net of any applicable exercise price with respect to options).

We intend to finance the estimated $2.4 billion of cash consideration with a combination of cash on hand, proceeds from the issuance of debt or equity securities and new, fully-committed debt financing. On November 18, 2015, we entered into a commitment letter (the “Commitment Letter”) with Deutsche Bank Securities Inc. (“DBSI”), Deutsche Bank AG, New York Branch (“Deutsche Bank”), Bank of America, N.A. (“Bank of America”) and Merrill Lynch, Pierce, Fenner & Smith Incorporated (“Merrill Lynch”) pursuant to which Deutsche Bank and Bank of America have committed to provide a $2.4 billion term loan facility (the “Term Loan”) and a $300 million revolving credit facility that may be increased by an additional $200 million (the “Revolver,” together with the provision of the Term Loan and Revolver as set forth in the Commitment Letter, the “Financing”) subject to satisfaction of customary closing conditions. The Term Loan is available to (i) finance the Offer and related Merger pursuant to the Fairchild Agreement, and (ii) pay fees and expenses related to the Merger and the Financing. Under the Commitment Letter, DBSI and Merrill Lynch will act as joint lead arrangers and bookrunners. The Commitment Letter provides, among other matters, for an initial commitment period until August 18, 2016 to effect the Financing, subject to three one-month extensions for regulatory approvals. The actual documentation governing the Financing has not been finalized, and accordingly, the actual terms may differ from the description of such terms in the Commitment Letter.

The transactions contemplated by the Fairchild Agreement have been unanimously approved by the boards of directors of both companies. Consummation of the transactions contemplated by the Fairchild Agreement is subject to the satisfaction or waiver of the conditions set forth in the Fairchild Agreement, as well as other customary closing conditions.

A detailed description of the transactions contemplated by the Fairchild Agreement can be found in the 8-K filed by us with the SEC on November 18, 2015, the Tender Offer Statement on Schedule TO (including the related tender offer materials, including the offer to purchase, the related letter of transmittal and certain other tender offer documents) filed by us with the SEC on December 4, 2015, the Solicitation/ Recommendation Statement on Schedule 14D-9 filed by Fairchild with the SEC with respect to the tender offer on December 4, 2015 and all subsequent amendments and supplements to those documents filed with the SEC by us and Fairchild. We currently expect the transactions contemplated by the Fairchild Agreement to close late in the second quarter of 2016. Factors, such as the possibility of an intervening offer for Fairchild or our ability to obtain the debt financing we need to consummate the Fairchild Transaction, may affect when and whether the Merger will occur.

See Part I, Item 1A “Risk Factors” and Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for additional information. See also Note 20: “Recent Developments and Subsequent Events” of the notes to our audited consolidated financial statements, included elsewhere in this Form 10-K for additional information and recent developments.

Completed Mergers and Acquisitions

On July 15, 2015, we completed the purchase of AXSEM, whereby AXSEM became our wholly-owned subsidiary. The aggregate purchase price of this transaction was approximately $8.0 million in cash consideration, plus an additional unlimited contingent consideration with a fair value of $5.0 million as of the acquisition date. We believe the acquisition of AXSEM expands the Company’s industrial and timing business and is another step forward in expanding the Company’s presence in select segments of the industrial end-market. See Note 4: “Acquisitions” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information.

On August 15, 2014, we completed the purchase of Aptina, whereby Aptina became our wholly-owned subsidiary. The aggregate purchase price of this transaction was approximately $405.4 million in cash, subject to customary closing adjustments. We believe the acquisition of Aptina expands our image-sensorimage sensor business and

establishes ON Semiconductor as a leaderone of the leaders in the fast growing segment of image sensors in the automotive and industrial end-markets. See Note 4: “Acquisitions” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information.

On April 30, 2014, we completed the purchase of Truesense, whereby Truesense became our wholly-owned subsidiary. The aggregate purchase price of this transaction was approximately $95.7 million, subject to customary closing adjustments. We believe that the acquisition of Truesense strengthens our product portfolio targeting industrial end-markets such as machine vision, surveillance and intelligent transportation systems by complementing our existing high-speed, high-resolution, power-efficient image sensing solutions with Truesense’s high-performance image sensors for low-light, low-noise. See Note 4: “Acquisitions” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information.

On February 27, 2011, we acquired 100% of the CMOS ISBU from Cypress Semiconductor for $34.1 million in cash. The ISBU includes a portfolio of custom and standard image sensors used in multi-megapixel machine vision, linear and two dimensional bar code imaging, medical x-ray imaging, biometrics, digital photography and cinematography, and aerospace applications. The acquired products include the VITA, LUPA, STAR, and IBIS families.

On January 1, 2011, we paid SANYO Electric $142.1 million in cash and issued a $377.5 million note payable to SANYO Electric, through SCI LLC, in exchange for a 100% interest in SANYO Semiconductor and certain other semiconductor related assets held by SANYO Electric. In the second quarter of 2011, we received approximately $39.7 million in cash from SANYO Electric for working capital and pension adjustments as determined in accordance with the purchase agreement, which resulted in a net purchase price of $479.9 million.

The acquisition of SANYO Semiconductor provided us with a stronger market presence in Japan, with many leading Japan-based customers, some of which were previously our customers. We believe that this acquisition has provided and will continue to provide us with access to market-leading Japanese and Asian customers, while providing our System Solutions Group’s customers with access to advanced front-end mixed-signal and analog manufacturing, and ultra high volume back-end facilities. Since acquiring SANYO Semiconductor in 2011, we have incurred material restructuring expenses to achieve cost savings in order to align the System Solutions Group’s cost structure with expected revenue levels as the System Solutions Group experienced revenue and financial performance declines which were greater than our expectations and greater than cyclical declines in our other operating segments. These revenue declines were at least partially attributable to the impact from the October 2011 Thailand flood, a softening of the Japanese consumer market and, to a lesser extent, political tensions between Japan and China. See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Operations - Results of Operations—Operations - Operating Expenses” under the heading “Restructuring, Asset Impairmentsasset impairments and Other, Net”other, net” and in Note 6: “Restructuring, Asset Impairments and Other, Net” of the notes to our audited consolidated financial statements included elsewhere in this report for additional information on our System Solutions Group restructuring activities. On a long-term basis, we expect our System Solutions Group to benefit from access to ON Semiconductor’s market leading customers not previously doing business with SANYO Semiconductor in North America, Europe and China.

On February 27, 2011, we acquired 100% of the CMOS ISBU from Cypress Semiconductor for $34.1 million in cash. The ISBU includes a broad portfolio of high-performance custom and standard image sensors

used in multi-megapixel machine vision, linear and two dimensional bar code imaging, medical x-ray imaging, biometrics, digital photography and cinematography, and aerospace applications. The acquired products include the VITA, LUPA, STAR, and IBIS families, which are all well known throughout the industry.

During 2010, we acquired 100% of SDT and CMD in all cash transactions. Among other benefits, these acquisitions improved our position as a leader of certain technologies, expanded our product offerings in certain end-markets, allowed us to reach more customers and enhanced our existing product portfolio.

See Note 4: “Acquisitions” of the notes to our audited consolidated financial statements included elsewhere in this report for further discussion of certain of these acquisitions.

Products and Technology

The following provides certain information regarding our operating segments. See “Business Overview” above and Note 18: “Segment Information” of the notes to our audited consolidated financial statements included elsewhere in this report for other information regarding our segments and their revenues and property, plant and equipment and the income derived therefrom.

Application Products Group

The Application Products Group designs and develops analog, mixed-signal and advanced logic ASIC and ASSP solutions for a broad base of end-users in the automotive, consumer electronics, computing, industrial, communications, medical and military / aerospace markets. Our product solutions enable industry leading active mode and standby mode efficiency now being demanded by regulatory agencies around the world. Additionally, the Application Products Group offers foundryTrusted Foundry, Trusted Design, and manufacturing services, includingand IPD products technology, which leveragesleverage the Company’s broad range of manufacturing, IC design, packaging and silicon technology offerings to provide flexible turn-key solutions for our customers. Certain of the Application Products Group’s broad portfolio of products and solutions are summarized below:

Image Sensor Group

The Image Sensor Group designs and develops CMOS and CCD image sensors, as well as proximity sensors and image signal processors for a broad base of end-users in the automotive, industrial, consumer electronics, wireless, medical, and military\aerospace markets. Our broad product offering delivers excellent pixel performance, sensor functionality and camera systems capabilities to a world going more visual. With our high-quality imaging portfolio, camera system and applications expertise, our customers can deliver new and differentiated imaging solutions to their end-markets. Certain of the Image Sensor Group’s broad portfolio of products and solutions are summarized below:

Standard Products Group

The Standard Products Group offers a wide array of discrete and integrated semiconductor products that perform multiple application functions, including power switching, signal conditioning, circuit protection, signal amplification and voltage reference functions. The trends driving growth within our end-user markets are primarily the demand for greater functionality in small hand-held devices, faster data transmission rates in all communications applications and higher efficiency in all power applications. The proliferation of electronic content in automobiles has induced tremendous stress on the existing 12 volt electrical infrastructure. Power efficiency and exceptionally low power drain modes have now become a critical automotive issue as more and more electronic features exist. The new technologies being developed to support these market trends include lower capacitance protection and integrated signal conditioning products to support faster data transmission rates, micro packages for multiple hand-held applications and switching and rectification technologies that allow for high efficiencyhigh-efficiency energy usage and conversion. Certain of the Standard Product Group’s broad portfolio of products and solutions are summarized below:

End-MarketWireless Communications		Certain Focused Products and Solutions
Wireless Communications		Continue to introduce world’s smallest packages: DFN MOSFETs, Chip Scale Package, EEPROMs and LDOs, DFN 01005 for small signal devices and protection. Low capacitance ESD and common mode filters for high speed serial interface protection. High PSRR LDOs for clean power rails and low power LDOs for increased efficiency. Precision OpAmps to support proliferation of sensors and CSP EEPROMs to facilitate storage of security information. GaN technology enables drasticsignificant reduction in power adaptor size.

System Solutions Group

Our System Solutions Group designs and develops analog and mixed signal ICs, DSPs, analog and digital tuners, intelligent power modules, memory and discrete semiconductors for the automotive, communications, consumer and industrial end-markets. The continuing transformation to make all electronics systems “smart”,“smart,” connected and more power efficient presents a substantial opportunity to draw on our diverse product portfolio and applications expertise to provide customers with comprehensive systems solutions for their applications. We further possess unique packaging capabilities that help customers reduce device size, weight and improve power efficiency as more semiconductor content is incorporated into electronics systems and device dimensions shrink to increase portability. These advanced packaging capabilities allow us to provide complete, fully tested solutions resulting in faster time to market for our customers. Certain of the System Solutions Group’s broad portfolio of products and solutions are summarized below:

Customers

In general, we have maintained long-term relationships with our key customers. Sales agreements with customers are renewable periodically and contain certain terms and conditions with respect to payment, delivery, warranty and supply, but typically do not require minimum purchase commitments. Most of our OEM customers negotiate pricing terms with us on an annual basis near the end of the calendar year, while our other customers, including electronic manufacturer service providers and distributors, generally negotiate pricing terms with us on a quarterly basis. Our products are ultimately purchased for use in a variety of end-markets, including computing, automotive electronics, consumer electronics, industrial electronics, wireless communications, networking, military aerospace and medical. For the years ended December 31, 2014,2015, December 31, 2013,2014, and December 31, 2012,2013, we had no sales to individual customers, including distributors, that accounted for 10% or more of our total consolidated revenues.

consolidated revenues. Prior to 2012, sales to one of our distributors, Avnet, represented 13% of total consolidated revenues for the year ended December 31, 2010. Revenues for our Application Products Group and Standard Products Group include distributor sales to Avnet.

For the year ended December 31, 2014,2015, aggregate revenue from our five largest customers by revenue,per segment, including distributors, for our Application Products Group, Image Sensor Group, Standard Products Group, and System Solutions Group comprised approximately 30%29%, 41%59%, 44%43%, and 52%51% of total revenue for each respective operating segment. The loss of certain of these customers or distributors may have a material adverse effect on the operations of the respective segment.

We generally warrant that products sold to our customers will, at the time of shipment, be free from defects in workmanship and materials and conform to our approved specifications. Subject to certain exceptions, our standard warranty extends for a period of two years. Generally, our customers may cancel orders 30 days prior to shipment for standard products and 90 days prior to shipment for custom products without incurring a significant penalty. For additional information regarding agreements with our customers, see “Backlog” below.

End-Markets for Our Products

The following table sets forth our principal end-markets, the estimated percentage (based in part on information provided by our distributors and electronic manufacturing service providers) of our revenues generated from each end-market during 2014,2015, sample applications for our products and representative OEM customers and end-users.

OEMs    Direct sales to OEMs accounted for approximately 39% of our revenues in 2015, 42% of our revenues in 2014 and 48% of our revenues in 2013 and 55% of our revenues in 2012.2013. OEM customers include a variety of companies in the electronics industry such as Continental Automotive Systems, Delphi, Hella, Huawei Technologies Co. Ltd., Magna International, Panasonic Corporation and Samsung Electronics. We focus on three types of OEMs: multi-nationals, selected regional accounts and target market customers. Large multi-nationals and selected regional accounts, which are significant in specific markets, are our core OEM customers. The target market customers for our end-markets are OEMs that are on the leading edge of specific technologies and provide direction for technology and new product development. Generally, our OEM customers do not have the right to return our products following a sale other than pursuant to our standard warranty.

Distributors    Sales to distributors accounted for approximately 54% of our revenues in 2015, 50% of our revenues in 2014 and 44% of our revenues in 2013 and 38% of our revenues in 2012.2013. Our distributors, which include Arrow, Avnet, Macnica, OS Electronics, World Peace and WT Microelectronics, resell to mid-sized and smaller OEMs and to electronic manufacturing service providers and other companies. Sales to certain distributors are made pursuant to agreements that provide return rights with respect to discontinued or slow-moving products. Under certain agreements, distributors are allowed to return any product that we have removed from our price book. In addition, agreements with certain of our distributors contain stock rotation provisions permitting limited levels of product returns. Due to current limitations on the feasibility of estimating the up frontupfront effect of returns and allowances with these distributors, we defer recognition of revenue and gross profit on sales to these distributors until these distributors resell the product. As a result, sales returns have minimal impact on our results of operations.

Electronic Manufacturing Service Providers    Direct sales to electronic manufacturing service providers accounted for approximately 7% of our revenues in 2015, and 8% of our revenues in 2014 8% of our revenues in 2013 and 7% of our revenues in 2012.2013. Among our largest electronic manufacturing service customers are Benchmark Electronic, Celestica, Flextronics, Jabil and Sanmina. These customers are manufacturers who typically provide contract manufacturing services for OEMs. Originally, these companies were involved primarily in the assembly of printed circuit boards, but they now typically provide design, supply management and manufacturing solutions as well. Many OEMs now outsource a large part of their manufacturing to electronic manufacturing service providers in order to focus on their core competencies. We are pursuing a number of strategies to penetrate this increasingly important marketplace. Generally, our electronic manufacturing service customers do not have the right to return our products following a sale other than pursuant to our standard warranty.

See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Note 18: “Segment Information” of the notes to our audited consolidated financial statements included elsewhere in this report for revenues by geographic locations.

Manufacturing Operations

We operate front-end wafer site facilities in Belgium, Canada, Czech Republic, Japan, Malaysia, and the United States and back-end assembly and test site facilities in Canada, China, Japan, Malaysia, Philippines, Vietnam and Vietnam.the United States. In addition to these front-end and back-end manufacturing operations, our facility in Roznov, Czech Republic manufactures silicon wafers that are used by a number of our facilities.

The table below sets forth information with respect to the manufacturing facilities we operate either directly or through our joint venture, as well as the reporting segments that use these facilities, along with the approximate gross square footage of each site’s building, which includes, among other things, manufacturing, laboratory, warehousing, office, utility, support and unused areas.

(1)   These facilities are leased.

(2)   This facility is used for both front-end and back-end operations with a total square footage of 95,440.

(3)   These facilities are located on leased land.

(4)   This facility is used for both front-end and back-end operations with a total square footage of 265,594. Consists of one leased and one owned building.

We operate all of our manufacturing facilities directly, with the exception of our assembly and test operations facility located in Leshan, China, which is owned by a joint venture company, Leshan-Phoenix Semiconductor Company Limited (“Leshan”), of which we own a majority of the outstanding equity interests. Our investment in Leshan has been consolidated in our financial statements. Our joint venture partner, Leshan Radio Company Ltd., is formerly a state-owned enterprise. Pursuant to the joint venture agreement, requests for production capacity are made to the board of directors of Leshan by each shareholder of the joint venture. Each request represents a purchase commitment by the requesting shareholder, provided that the shareholder may elect to pay the cost associated with the unused capacity (which is generally equal to the fixed cost of the capacity) in lieu of satisfying the commitment. We committed to purchase 70%80% of Leshan’s production capacity in 2015, 70% in 2014 2013 and 20122013 and are currently committed to purchase approximately 80% of Leshan’s expected production capacity in 2015.2016. During the year ended December 31, 2014, we acquired an additional equity interest in Leshan, see Note 9: “Earnings Per Share and Equity” of the notes to our audited consolidated financial statements included elsewhere in this report for additional information.

We use third-party contractors for some of our manufacturing activities, primarily for wafer fabrication and the assembly and testing of finished goods. Our agreements with these contract manufacturers typically require us to forecast product needs and commit to purchase services consistent with these forecasts. In some cases, longer-term commitments are required in the early stages of the relationship. These contract manufacturers, including Amkor, ASE, HAUHONG Grace,LFoundry S.r.l., Kingpak, TSMC and UMC, and LFoundry S.r., accounted for approximately 30%39%, 26%30% and 23%26% of our manufacturing costs in 2015, 2014 2013 and 2012,2013, respectively.

For information regarding risks associated with our foreign operations, see Part I, Item 1A “Risk Factors” under the heading “Trends, Risks and Uncertainties Related to Our Business” included elsewhere in this report.

Raw Materials

Our manufacturing processes use many raw materials, including silicon wafers, gold, copper, and lead frames, mold compound, ceramic packages and various chemicals and gases. We obtain our raw materials and supplies from a large number of sources, generally on a just-in-time basis, and material agreements with our suppliers that impose minimum or continuing supply obligations are reflected in our commitments, contingencies and indemnitiescontractual obligations table in Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Operations - Liquidity and Capital Resources” under the heading “Contractual Obligations” included elsewhere in this report. From time to time, suppliers may extend lead times, limit supplies or increase prices due to capacity constraints or other factors. Although we believe that supplies of the raw materials we use are currently and will continue to be available, shortages could occur in various essential materials due to interruption of supply, increased demand in the industry or certain other factors.

Sales, Marketing and Distribution

As of December 31, 2014,2015, our global sales and marketing organization consisted of approximately 1,200 professionals, servicing customers in approximately 70 countries. We support our customers through logistics organizations and just-in-time warehouses. Global and regional distribution channels further support our customers’ needs for quick response and service. We offer efficient, cost-effective global applications support from our Technical Information Centers and Solution Engineering Centers, allowing for applications which are developed in one region of the world to be instantaneously available throughout all other regions.

Patents, Trademarks, Copyrights and Other Intellectual Property Rights

We market our products under our registered trademark ON Semiconductor^® and our ON logo, and, in the United States and internationally, we rely primarily on a combination of patents, trademarks, copyrights, trade secrets,

employee and non-disclosure agreements and licensing agreements to protect our intellectual property. We acquired or were licensed or sublicensed to a significant amount of IP, including patents and patent applications, in connection with our acquisitions, and we have numerous U.S. and foreign patents issued, allowed

and pending. Our patents have expiration dates ranging from 20152016 to 2034,about 2035, and none of the patents that expire in the near future materially affect our business. Our policy is to protect our products and processes by asserting our IP rights where appropriate and prudent and by obtaining patents, copyrights and other IP rights used in connection with our business when practicable and appropriate.

Seasonality

Historically, our revenues have been affected by the cyclical nature of the semiconductor industry and the seasonal trends of related end-markets consisting of a stronger second half of the year for certain end-markets as compared to the first half of the year. We have, in the past, experienced substantial quarter-to-quarter fluctuations in revenues and operating results and, in the future, could continue to experience short-term period-to-period fluctuations in operating results due to general industry or economic conditions.conditions or for other reasons.

Backlog

Our trade sales are made primarily pursuant to orders that are predominantly booked as far as 26 weeks in advance of delivery. Generally, prices and quantities are fixed at the time of booking. Backlog as of a given date consists of existing orders and forecasted demand from our Electronic Data Interface customers, in each case scheduled to be shipped over the 13-week period following such date. Backlog is influenced by several factors, including market demand, pricing and customer order patterns in reaction to product lead times. For those shipments to distributors who are allowed sales return rights and allowances, we record revenues on a “sell-through” basis. Thus, backlog comprised of orders from these distributors will not result in revenues until these distributors sell the products ordered. During 2014,2015, our backlog at the beginning of each quarter represented between 80% and 85% of actual revenues during such quarter, which is consistent with backlog levels in recent prior periods. As manufacturing capacity utilization in the industry increases, customers tend to order products further in advance and, as a result, backlog at the beginning of a period as a percentage of revenues during such period is likely to increase.

In the semiconductor industry, backlog quantities and shipment schedules under outstanding purchase orders are frequently revised to reflect changes in customer needs. Agreements calling for the sale of specific quantities are either contractually subject to quantity revisions or, as a matter of industry practice, are often not enforced. Therefore, a significant portion of our order backlog may be cancelable. For these reasons, the amount of backlog as of any particular date may not be an accurate indicator of future results.

We sell products to key customers pursuant to contracts that allow us to schedule production capacity in advance and allow the customers to manage their inventory levels consistent with just-in-time principles while shortening the cycle times required for producing ordered products. However, these contracts are typically amended to reflect changes in customer demands and periodic price renegotiations.

Competition

The semiconductor industry, particularly the market for general-purpose semiconductor products like ours, is highly competitive. Although only a few companies compete with us in most of our product lines, weWe face significant competition within each of our product lines from major international semiconductor companies, as well as smaller companies focused on specific market niches. Because our

components are often building block semiconductors that, in some cases, can be integrated into more complex ICs, we also face competition from manufacturers of ICs, ASICs and fully-customized ICs, as well as customers who develop their own IC products. See Part I, Item 1A “Risk Factors—Factors - Trends, Risks and Uncertainties Related to Our Business” located elsewhere in this report for additional information.

In comparison, several competitors noted below are larger in scale and size, have substantially greater financial and other resources with which to pursue development, engineering, manufacturing, marketing and distribution of their products and may generally be better situated to withstand adverse economic or market conditions. The following discusses the effects of competition on our four operating segments:

Application Products Group

The principal methods of competition in the Application Products Group are with other custom semiconductor vendors based on design experience, manufacturing capability, depth and quality of IP, ability to service customer needs from the design phase to the shipping of a completed product, length of design cycle, longevity of technology support and experience of sales and technical support personnel.

Our ability to compete successfully depends on internal and external variables, both inside and outside of our control. These variables include, but are not limited to, the timeliness with which we can develop new products and technologies, product performance and quality, manufacturing yields and availability, customer service, pricing, industry trends and general economic trends. Select competitors for certain of our products and solutions include: Elmos SemiconductorNXP Semiconductors N.V.; Infineon Technologies AG; Intersil Corporation; Maxim Integrated Products, Inc.; Melexis N.V.; STMicroelectronics N.V.; and Texas Instruments Inc.; and Silicon Labs.

Image Sensor Group

The principal method of competition in the Image Sensor Group is to leverage ourdifferentiates itself from the competition by leveraging deep technical knowledge and close customer relationships to drive the most compelling imaging experience for end users. The Image Sensor Group has over four decades of CCD imaging experience and was the first to commercialize CMOS active pixel sensors. As the result, theThe Image Sensor Group was the first to introduce CMOS technology into many of our markets, includingleveraging this expertise into market leading positions in automotive and industrial applications, and bringsbringing a wealth of technical and end-user applications knowledge to help customers develop innovative imaging solutions across a broad range of end-user needs. Select competitors for certain of our products and solutions include: Sony Semiconductor; Samsung; Omnivision; STMicroelectronics N.V.; and Toshiba.

Standard Products Group

The Standard Products Group’s competitive strengths are in our market leading protection and filtering products, the breadth of our portfolio, technical performance, micro-packaging expertise, our high quality, low cost structure, and supply chain management which ensures supply to key customers. In addition, our strengths include our strong IP portfolio and our ability to leverage IP blocks across the Company to develop high value-added ASSPs.

The principal methods of competing in our discrete semiconductor products are through new product and package innovations with enhanced performance over existing products. Of particular importance areis our transient voltageESD portfolio for hi-speed serial interface protection and filtering portfolios (ESD Protection and Common Mode Filters), power switching and rectification products where we believe we enjoy significant performance advantages over our competition.competition, as well as, power switching and rectification products. Select competitors for

certain of our products include: Diodes Incorporated; Fairchild Semiconductor International, Inc.; Infineon Technologies AG; KEC Corporation; NXP B.V.; Rohm Co., Ltd.; Semtech Corporation; STMicroelectronics N.V.; Fairchild; and Vishay Intertechnology, Inc.

System Solutions Group

The principal methods of competition for the System Solutions Group are technical performance, quality, service and price. Our competitive strengths are strong technology and design capability, breadth of product portfolio, systems design expertise and long-standing supply relationships with leading OEM customers. Select competitors for certain of our products include: Fairchild Semiconductor International, Inc.; Infineon

Technologies AG; Mitsubishi Electric; NXP B.V.; Renesas Electronics Corporation; Rohm Co. Ltd.; Sanken Electric; STMicroelectronics N.V.; Texas Instruments Incorporated; Fairchild; and Toshiba Corporation.

Research and Development

Company-sponsored research and development costs in 2015, 2014 and 2013 and 2012 were $396.7 million (11% of revenue), $366.6 million (11.6% of revenue), $334.2 million (12.0%(12% of revenue) and $367.5$334.2 million (12.7%(12% of revenue), respectively. We seek to maximize the investment of our people and capital in research and development by targeting innovative products and solutions for high growth applications that position the company to outperform the industry. Our design expertise in analog, digital, mixed signal and imaging ICs, combined with our extensive portfolio of standard products enable the company to offer comprehensive, value added solutions to our global customers for their electronics systems.

Government Regulation

Our manufacturing operations are subject to environmental and worker health and safety laws and regulations. These laws and regulations include those relating to emissions and discharges into the air and water, the management and disposal of hazardous substances, the release of hazardous substances into the environment at or from our facilities and at other sites, and the investigation and remediation of contamination.

Our headquarters in Phoenix, Arizona is located on property that is a “Superfund” site, a property listed on the National Priorities List and subject to clean-up activities under the Comprehensive Environmental Response, Compensation, and Liability Act. Motorola and now Freescale have been actively involved in the cleanup of on-site solvent contaminated soil and groundwater and off-site contaminated groundwater pursuant to consent decrees with the State of Arizona. As part of our separation from Motorola in 1999, Motorola retained responsibility for this contamination, and Motorola and Freescale (which became a wholly-owned subsidiary of NXP Semiconductors N.V. on December 7, 2015) have agreed to indemnify us with respect to remediation costs and other costs or liabilities related to this matter.

Our former manufacturing location in Aizu, Japan is located on property where soil and ground water contamination has been detected. We believe that the contamination originally occurred during a time when the facility was operated by a prior owner. We have been working with local authorities to implement remediation actions and expect all remaining remediation costs to be covered by insurance. Based on information available, any net costs to us in connection with this matter are not expected to be material.

Our manufacturing facility in the Czech Republic has ongoing remediation projects to respond to releases of hazardous substances that occurred during the years that this facility was operated by government-owned entities. The remediation projects consist primarily of monitoring groundwater wells located on-site and off-site, with

additional action plans developed to respond in the event activity levels are exceeded. The government of the Czech Republic has agreed to indemnify us and the respective subsidiaries, subject to specified limitations, for remediation costs associated with this historical contamination. Based upon the information available, we do not believe that total future remediation costs to us will be material.

Our design center in East Greenwich, Rhode Island is located on property that has localized soil contamination. When we purchased the East Greenwich facility, we entered into a Settlement Agreement and Covenant Not To Sue with the State of Rhode Island. This agreement requires that remedial actions be undertaken and a quarterly groundwater monitoring program be initiated by the former owners of the property. Based on the information available, we do not believe that any costs to us in connection with this matter will be material.

As a result of the acquisition of AMIS in 2008, we are a “primary responsible party” to an environmental remediation and cleanup at AMIS’s former corporate headquarters in Santa Clara, California. Costs incurred by AMIS include implementation of the clean-up plan, operations and maintenance of remediation systems and

other project management costs. However, AMIS’s former parent company, a subsidiary of Nippon Mining, contractually agreed to indemnify AMIS and us for any obligations relating to environmental remediation and clean-up at this location. Based on the information available, we do not believe that any future costs to us in connection with this matter will be material.

We were notified by the Environmental Protection Agency (“EPA”) that we have been identified as a “potentially responsible party” (“PRP”) in the Chemetco Superfund matter. Chemetco is a defunct reclamation services supplier who operated in Illinois at what is now a Superfund site. We used Chemetco for reclamation services. The EPA is pursuing Chemetco customers for contribution to the site cleanup activities. We have joined a PRP group which is cooperating with the EPA in the evaluation and funding of the cleanup. Based on the information available, any costs to us in connection with this matter have not been, and are not expected to be, material.

We believe that our operations are in material compliance with applicable environmental and health and safety laws and regulations. We do not expect the cost of compliance with existing environmental and health and safety laws and regulations, and liability for currently known environmental conditions, to have a material adverse effect on our business or prospects. It is possible, however, that future developments, including changes in laws and regulations, government policies, customer specification, personnel and physical property conditions, including currently undiscovered contamination, could lead to material costs. See Note 12: “Commitments and Contingencies” of the notes to our audited consolidated financial statements included elsewhere in this Form10-K for information on certain environmental matters.

Employees

As of December 31, 2014,2015, we had approximately 24,500 employees worldwide, of which approximately 3,1003,200 employees were in the United States. None of our employees in the United States are covered by collective bargaining agreements. Certain of our foreign employees are covered by collective bargaining arrangements (e.g., those in Japan and Belgium) or similar arrangements or are represented by workers councils. For information regarding employee risk associated with our international operations, see Part I, Item 1A “Risk Factors—Factors - Trends, Risks and Uncertainties Related to Our Business” elsewhere in this report. Of the total number of our employees as of December 31, 2014,2015, approximately 20,40020,300 were engaged in manufacturing, approximately 1,200 were engaged in our sales and marketing organization, which includes customer service, approximately 800 were engaged in administration and approximately 2,1002,200 were engaged in research and development.

Executive Officers of the Registrant

Certain information concerning our executive officers as of February 20, 201517, 2016 is set forth below.

*  Executive Officers of both ON Semiconductor and SCI LLC.

The present term of office for the officers named above will generally expire on the earliest of their retirement, resignation or removal. There is no family relationship among such officers.

Keith D. Jackson.    Mr. Jackson was elected as a Director of ON Semiconductor and appointed as President and Chief Executive Officer of ON Semiconductor and SCI LLC in November 2002. Mr. Jackson has over 32more than 30 years of semiconductor industry experience. Before joining ON Semiconductor, he was with Fairchild, Semiconductor Corporation, serving as Executive Vice President and General Manager, Analog, Mixed Signal, and Configurable Products Groups, beginning in 1998, and, more recently, was head of its Integrated Circuits Group. From 1996 to 1998, he served as President and a member of the board of directors of Tritech Microelectronics in Singapore, a manufacturer of analog and mixed signal products. From 1986 to 1996, Mr. Jackson worked for National Semiconductor Corporation, most recently as Vice President and General Manager of the Analog and Mixed Signal division. He also held various positions at Texas Instruments Incorporated, including engineering and management positions, from 1973 to 1986. Mr. Jackson joined the board of directors of Veeco Instruments, Inc. in February 2012 and has served on the board of directors of the Semiconductor Industry Association since 2008. In February of 2014, Mr. Jackson became a National Association of Corporate Directors Board Leadership Fellow, the highest level of credentialing for corporate directors and corporate governance professionals.

Bernard Gutmann.    Mr. Gutmann was promoted and appointed Executive Vice President and Chief Financial Officer of ON Semiconductor and SCI LLC in September 2012 and has served as ON Semiconductor’s and SCI LLC’s Treasurer since January 2013. Before his promotion, he worked with the corporation as Vice President, Corporate Analysis & Strategy of SCI LLC, serving in that position from April 2006 to September 2012. Mr. Gutmann also served and continues to serve as the Chief Financial Officer of SANYO Semiconductor (now known as the System Solutions Group), a position he has held since March 2011. In these roles, his responsibilities have included finance integration, financial reporting, restructuring, tax, treasury, and financial planning and analysis. From November 2002 to April 2006, Mr. Gutmann served as Vice President, Financial Planning & Analysis and Treasury of SCI LLC. From September 1999 to November 2002, he held the position of Director, Financial Planning & Analysis of SCI LLC. Prior to joining ON Semiconductor, Mr. Gutmann served in various financial positions with Motorola Inc. from 1982 to 1999, including controller of various divisions and an off-shore wafer and backend factory, finance and accounting manager, financial planning manager and financial analyst. He holds a Bachelor of Science in Management Engineering from Worcester Polytechnic Institute in Massachusetts (U.S.). Additionally, he is fluent in English, French, Spanish, and conversant in German.

George H. “Sonny” Cave.    Mr. Cave has served asis the founding General Counsel ofand Corporate Secretary at ON Semiconductor and SCI LLC since August 1999.the 1999 spin-out from Motorola Inc. He is also currently serves as Executive Vice President, Corporate Secretary, Chief Compliance & Ethics Officer and Chief Risk Officer for the Company. Mr. Cave’s professional career spans over 29 years of broadOfficer. His extensive legal and business experience spans over 30 years, including working for over 22seven years in the semiconductor industry. Before his tenure with ON Semiconductor and SCI LLC, he served forMotorola. For two years prior to ON Semiconductor’s spin-out, he was an ex patriate stationed in Geneva, Switzerland as the Regulatory Affairs Director for Motorola’s Semiconductor Components GroupGroup. Before that assignment, he spent five years with Motorola’s Corporate Law Department in Geneva, Switzerland. Prior to that position, Mr. CavePhoenix, Arizona where he was Senior Counsel in the Corporate Law Department of Motorola in Phoenix, Arizona for five years.global Environmental Health and Safety. Mr. Cave also serves aspracticed law for six years with two large firms in Denver and Phoenix. He has extensive experience in corporate law, governance, enterprise risk management and compliance and ethics. He holds a Juris Doctorate Degree from the Vice ChairmanUniversity of the BoardColorado School of DirectorsLaw (1985), a Master of the American Medical CollegeScience Degree from Arizona State University (1982) and a Bachelor of Homeopathy.Science Degreecum laude from Duke University (1979).

William M. Hall.    Mr. Hall joined the Company in May 2006 and is currently the Executive Vice President and General Manager of the Standard Products Group of ON Semiconductor and SCI LLC. During his career, Mr. Hall has held various marketing and product line management positions. Before joining the Company, he served as Vice President and General Manager of the Standard Products Group at Fairchild Semiconductor Corp.Fairchild. Between March 1997 and May 2006, Mr. Hall served at different times as Vice President of Business Development, Analog Products Group, Standard Products Group, and Interface and Logic Group, as well as serving as Vice President of Corporate Marketing at Fairchild. He has also held management positions with National Semiconductor Corp. and was a RADAR design engineer with RCA.

Robert A. Klosterboer.    Mr. Klosterboer joined the Company in March 2008 and currently serves as Executive Vice President and General Manager of the Application Products Group for ON Semiconductor and SCI LLC. From March 2008 to September 2012, he was Senior Vice President and General Manager of the business unit then known as the Automotive, Industrial, Medical, & Mil/Aero Group. He has more than three decades of experience in the electronics industry. During his career, Mr. Klosterboer has held various

engineering, marketing and product line management positions and responsibilities. Prior to joining ON Semiconductor in 2008, Mr. Klosterboer was Senior Vice President, Automotive & Industrial Group for AMI Semiconductor, Inc. Mr. Klosterboer joined AMIS in 1982 as a test engineer, and during his tenure there, he also was a design engineer, field applications engineer, design section manager, program development manager, and product marketing manager. Mr. Klosterboer holds a bachelor’sBachelor’s degree in electrical engineering technology from Montana State University.

Mamoon Rashid.    Mr. Rashid has over 30 years of experience in the semiconductor and electronics industry spanning marketing, manufacturing, sales and product line management positions. In January 2013, Mr. Rashid was appointed as Senior Vice President and General Manager, SANYO Semiconductor Group (now known as the System Solutions Group) for ON Semiconductor and SCI LLC. Prior to his promotion, Mr. Rashid held the position of Vice President of strategic business development, during which time he led the integration and restructuring of SANYO Semiconductor. Mr. Rashid joined ON Semiconductor in October 2004 and has held several leadership positions during his time with us. Prior to September 2008, Mr. Rashid served as Vice President and General Manager of our discrete products division, where he improved the growth and profitability of the business by entering several new product areas. From September 2008 to 2010, Mr. Rashid led our global supply chain organization as Vice President and General Manager during a transformational period for the Company. In these positions, he has supported the growth of ON Semiconductor into a multi-technology leading supplier of power solutions and helped improve profitability, efficiency and new product successes. Prior to joining ON Semiconductor, Mr. Rashid held leadership positions at market leading companies such as Intersil, Semtech and General Semiconductor.

Taner Ozcelik.    Mr. Ozcelik joined ON Semiconductor in August 2014 as the Senior Vice President of the Aptina Imaging Business and on February 20, 2015, he was named the Senior Vice President and General Manager of the Image Sensor Group of ON Semiconductor and SCI LLC. Mr Ozcelik has served at the intersection of semiconductors, consumer electronics, computing and automotive industries for more than two decades. Most recently, he served as Senior Vice President of Aptina’s Automotive and Embedded business. Prior to this, Mr. Ozcelik was Vice President and General Manager of NVIDIA’s automotive business. While at NVIDIA, he developed several award winning firsts in automotive, which spanned a variety of applications including infotainment systems, digital instrument clusters, automotive tablets and advanced driver assistance systems, which are now featured in cars worldwide. During his career, Mr. Ozcelik has also held positions as President and CEO at MobileSmarts and as Vice President and General Manager at Sony Semiconductor for its Digital Home Platform Division. Mr. Ozcelik holds an MBA from the Wharton School of the University of Pennsylvania, a PhD in Electrical Engineering from Northwestern University, and a BS in Electrical Engineering from Bogazici University, Turkey. He is listed as an inventor on 23 U.S. patents.

Paul E. Rolls.    Mr. Rolls was promoted and appointed Executive Vice President, Sales and Marketing of ON Semiconductor and SCI LLC in July 2013 to replace his retiring predecessor.2013. Before his promotion, he served as Senior Vice President, Japan Sales and Marketing and Senior Vice President of Global Sales Operations, serving in that position from October 2012 to July 2013. Mr. Rolls has more than 26 years of technology sales, sales management and operations experience, with more than 19 years of sales and sales management experience in the semiconductor industry. Before joining the Company, Mr. Rolls was the Senior Vice President, Worldwide Sales and Marketing at Integrated Device Technology, Inc. from January 2010 to April 2012. From August 1996 to December 2009, he held multiple sales positions at International Rectifier Corp., most recently as Senior Vice President, Global Sales. During his career, he has also held management roles at Compaq Computer Corporation.

William A. Schromm    Mr. Schromm has more than 30 years of semiconductor industry experience, has been with the Company since August 1999 and has more than 30 years of semiconductor industry experience. He isserved as Executive Vice President and Chief Operating Office forOfficer of ON Semiconductor and SCI LLC and has beensince August 2014. Prior to becoming Chief Operating Officer, he was a Senior Vice President responsible for the reliability and quality, organization, external manufacturing, System Solutions Group manufacturing, global supply chain, information technology, corporate program management and System Solutions Group integration teams since October 2012.management. Prior to this role, Mr. Schromm served as Senior Vice President and General Manager of the Company’s former Computing and Consumer Products Group from June 2006 through September 2012. During his tenure with the Company, he has held various positions. From August 2004 through May 2006, he served as the Vice President and General Manager of the Company’s former High Performance Analog Division and also led the Company’s former Analog Products Group. Beginning in January 2003, he served as Vice President of the Clock and Data Management business and continued in that role with additional product responsibilities when this business became the High Performance Analog Division in August 2004. Prior to that, he served as the Vice President of Tactical Marketing from July 2001 through December 2002, after leading the Company’s Standard Logic Division since August 1999. Since April 2015, Mr. Schromm has served on the board of directors of II-VI, Inc. Mr. Schromm earned a BS degree from Boston College and an MBA from the University of Phoenix.

Geographical Information

For certain geographic operating information, see Note 15: “Income Taxes” and Note 18: “Segment Information” of the notes to our audited consolidated financial statements and Part II, Item 7 “Management’s

Discussion and Analysis of Financial Condition and Results of Operations,” in each case, as included elsewhere in this report. For information regarding other aspects of risks associated with our foreign operations, see Part I, Item 1A “Risk Factors—Factors - Trends, Risks and Uncertainties Related to Our Business” elsewhere in this report.

Available Information

We make our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reports available, free of charge, in the “Investor Relations” section of our Internet website as soon as reasonably practicable after we electronically file these materials with, or furnish these materials to, the Securities and Exchange Commission (the “SEC”). Our website iswww.onsemi.com.

You may also read or copy any materials that we file with the SEC at its Public Reference Room at 100 F. Street, N.E., Washington, DC 20549. You may obtain additional information about the Public Reference Room by calling the SEC at 1-800-SEC-0330. Additionally, you will find these materials on the SEC Internet site athttp://www.sec.gov that contains reports, proxy statements and other information regarding issuers that file electronically with the SEC.

Item 1A.Risk Factors

Overview

This Annual Report on Form 10-K includes “forward-looking statements,” as that term is defined in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements, other than statements of historical facts, included or incorporated in this Form 10-K could be deemed forward-looking statements, particularly statements about our plans, strategies and prospects under the headings “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Business.” Forward-looking statements are often characterized by the use of words such as “believes,” “estimates,” “expects,” “projects,” “may,” “will,” “intends,” “plans,” or “anticipates,” or by discussions of strategy, plans or intentions. All forward-looking statements in this Form 10-K are made based on our current expectations, forecasts, estimates and assumptions, and involve risks, uncertainties and other factors that could cause results or events to differ materially from those expressed in the forward-looking statements. Among these factors are our revenues and operating performance, economic conditions and markets (including current financial conditions), effects of exchange rate fluctuations, the cyclical nature of the semiconductor industry, changes in demand for our products, changes in inventories at our customers and distributors, technological and product development risks, enforcement and protection of our IP rights and related risks, risks related to the security of our information systems and secured network, availability of raw materials, electricity, gas, water and other supply chain uncertainties, our ability to effectively shift production to other facilities when required in order to maintain supply continuity for our customers, variable demand and the aggressive pricing environment for semiconductor products, our ability to successfully manufacture in increasing volumes on a cost-effective basis and with acceptable quality for our current products, risks associated with our pending acquisition of Fairchild, including: (1) the risk that the conditions to the closing of the transaction are not satisfied; (2) litigation challenging the transaction; (3) uncertainties as to the timing of the consummation of the transaction and the ability of each party to consummate the transaction; (4) risks that the proposed transaction disrupts our current plans and operations; (5) our ability to retain key personnel; (6) competitive responses to the transaction; (7) unexpected costs, charges or expenses resulting from the transaction; (8) potential adverse reactions or changes to business relationships resulting from the announcement or completion of the transaction; (9) our ability to realize the benefits of the acquisition of Fairchild; (10) delays, challenges and expenses associated with integrating the businesses; (11) delays, challenges and expenses associated with the indebtedness planned to be incurred in connection with the transaction; and (12) legislative, regulatory and economic developments, competitor actions, including the adverse impact of competitor product announcements, pricing and gross profit pressures, loss of key customers, order cancellations or reduced bookings, changes in manufacturing yields, control of costs and expenses and realization of cost savings and synergies from restructurings, significant litigation, risks associated with decisions to expend cash reserves for various uses in accordance with our capital

allocation policy such as debt prepayment, stock repurchases, or acquisitions rather than to retain such cash for future needs, risks associated with acquisitions and dispositions (including from integrating and consolidating and timely filing financial information with the SEC for acquired businesses and difficulties encountered in accurately predicting the future financial performance of acquired businesses), risks associated with our substantial leverage and restrictive covenants in our debt agreements that may be in place from time to time, risks associated with our worldwide operations including foreign employment and labor matters associated with unions and collective bargaining arrangements as well as man-made and/or natural disasters affecting our operations and finances/financials, the threat or occurrence of international armed conflict and terrorist activities both in the United States and internationally, risks and costs associated with increased and new regulation of corporate governance and

disclosure standards, risks related to new legal requirements and risks involving environmental or other governmental regulation. Additional factors that could affect our future results or events are described from time to time in our SEC reports. Readers are cautioned not to place undue reliance on forward-looking statements. We assume no obligation to update such information, except as may be required by law.

You should carefully consider the trends, risks and uncertainties described below and other information in this Form 10-K and subsequent reports filed with or furnished to the SEC before making any investment decision with respect to our securities. If any of the following trends, risks or uncertainties actually occurs or continues, our business, financial condition or operating results could be materially adversely affected, the trading prices of our securities could decline, and you could lose all or part of your investment. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by this cautionary statement.

Trends, Risks and Uncertainties Related to Our Business

From time to time, we have experienced declines in revenues and incurred operating losses, and we may experience additional declines in revenues and incur additional operating losses in the future.

At times, our historical financial results have been subject to substantial fluctuations and during those times we have experienced declines in revenues and incurred operating losses. Reduced end-user demand, price declines, excess inventory, underutilization of our manufacturing capacity, the effects of natural disasters such as the flooding in Thailand or the Japan earthquake and tsunami in 2011, and other factors have adversely affected and could in the future adversely affect our business, financial condition and results of operations.

We operate in the highly cyclical semiconductor industry, which is subject to significant downturns and upturns.

The semiconductor industry is highly cyclical and, as a result, is subject to significant downturns and upturns. The industry has experienced significant downturns, often in connection with, or in anticipation of, maturing product cycles (for semiconductors and for the end-user products in which they are used) and declines in general economic conditions. These downturns have been characterized by diminished product demand, production overcapacity, high inventory levels and accelerated erosion of average selling prices. In the event of such a downturn, our operating results may be adversely affected as a result of increased operating expenses, reduced margins, underutilization of capacity or asset impairment charges. On the other hand, significant upturns have led to increased customer demand for our products and the risk of not being able to meet this demand in a timely and cost efficient manner. In the event of such an upturn, we may not be able to expand our workforce and operations in a sufficiently timely manner, procure adequate resources and raw materials, or locate suitable third-party suppliers to respond effectively to changes in demand for our existing products or to the demand for new products requested by our customers, and our current or future business could be materially and adversely

affected. We may also not be able to balance our expansion activities and actual demand in such an environment. The overbuilding of capacity and excess increases of inventory by us and other companies can result in overcapacity in the industry and general price erosion.

We have experienced these conditions in our business in the past and may experience them in the future. We cannot accurately predict the timing of the current and future downturns and upturns in the semiconductor industry and how severe and prolonged these conditions might be. These future conditions in the semiconductor industry could adversely impact our revenues and harm our business, financial condition and results of operations.

The failure to complete our acquisition of Fairchild may adversely affect our business and our share price.

Our and Fairchild’s obligations to consummate our acquisition of Fairchild are subject to the satisfaction or waiver of certain customary conditions, including (i) the absence of any law or order prohibiting or restraining the Fairchild Transaction or any law making the consummation of the Fairchild Transaction illegal, (ii) there being no event that has or would reasonably be expected to have a material adverse effect on either us or Fairchild, (iii) subject to certain exceptions, the accuracy of the representations and warranties of the parties in the Fairchild Agreement, and (iv) performance by ON Semiconductor and Fairchild of their respective obligations under the Fairchild Agreement. There can be no assurance that these conditions to the completion of the Fairchild Transaction will be satisfied in a timely manner or at all. In addition, other factors, such as the possibility of an intervening offer for Fairchild or our ability to obtain the debt financing we need to consummate the Fairchild Transaction, may affect when and whether the Merger will occur. If the Fairchild Transaction is not completed, our share price could fall to the extent that our current price reflects an assumption that we will complete the acquisition. Furthermore, if the Fairchild Transaction is not completed, we may suffer other consequences that could adversely affect our business, results of operations and share price, including the following: (1) we could be required to pay a termination fee of $215 million to Fairchild under certain circumstances as described in the Fairchild Agreement; (2) we would have incurred significant costs in connection with the acquisition that we would be unable to recover; (3) we may be subject to legal proceedings related to failure to complete the Fairchild Transaction; (4) the failure to consummate the Fairchild Transaction may result in negative publicity and a negative impression of us in the investment community; and (5) any disruptions to our business resulting from the announcement and pendency of the Fairchild Transaction, including any adverse changes in our relationships with our customers, vendors and employees, may continue or intensify in the event the acquisition is not consummated.

In addition, we would not realize any of the expected benefits of having completed the Fairchild Transaction. The Fairchild Transaction, if completed, will be our largest acquisition to date, by a significant margin. The benefits we expect to realize from the acquisition of Fairchild are necessarily based on projections and assumptions about combining our business with Fairchild, which may not materialize or which may prove to be inaccurate.

Uncertainty about the Fairchild Transaction may adversely affect our business and share price, whether or not the Fairchild Transaction is completed.

We are subject to risks in connection with the announcement and pendency of the Fairchild Transaction, including: (1) the pendency and outcome of the legal proceedings that have been or may be instituted against us, our directors and others relating to the Fairchild Transaction; and (2) that we may forgo opportunities we might otherwise pursue absent the Fairchild Agreement.

Uncertainties about the Fairchild Transaction may also cause our current and prospective employees (including employees at Fairchild) to experience uncertainty about their future with us. These uncertainties may impair our ability to retain, recruit or motivate key management, sales, marketing, engineering, technical and other personnel.

In addition, in response to the announcement of the Fairchild Transaction, our existing or prospective customers, vendors or suppliers may: (1) delay, defer or cease purchasing goods or services from or providing goods or services to us; (2) delay or defer other decisions concerning us, or refuse to extend credit to us; or (3) otherwise seek to change the terms on which they do business with us.

While we are attempting to address these risks through communications with our existing and prospective customers, vendors and suppliers, they may be reluctant to purchase our products due to potential uncertainty about the direction of our product offerings and the support and service of our products after we complete the Fairchild Transaction.

We may fail to realize the benefits expected from the Fairchild Transaction, which could have a material adverse effect on our financial condition, results of operations and the trading price of our common stock.

Although we expect significant benefits to result from the Fairchild Transaction, there can be no assurance that we will actually realize these or any other anticipated benefits of the Fairchild Transaction. The price for our stock, following completion of the Fairchild Transaction may be affected by our ability to achieve the benefits expected to result from the Fairchild Transaction. Achieving the benefits of the Fairchild Transaction will depend, in part, on our ability to integrate Fairchild’s business successfully and efficiently with our business.

We intend to finance the estimated $2.4 billion of cash consideration with a combination of cash on hand, new, fully-committed debt financing and proceeds from the issuance of debt or equity securities. The debt that we expect to incur will bear interest based on floating rate indices or, in the event of the issuance of any debt securities, at fixed rates to be determined at the time of issuance based on prevailing market conditions. As a result, increases in prevailing interest rates related to this new debt financing would result in a higher cost of capital and significantly increase our annual interest expense even though the amounts borrowed would remain the same, which likely would reduce the anticipated benefits of the Fairchild Transaction and would adversely affect our cash flows, financial condition and results of operations.

The challenges involved in this integration, which will be complex and time consuming, include the following: (1) demonstrating to customers of ON Semiconductor and Fairchild that the Fairchild Transaction will not adversely affect our ability to address the needs of customers or result in the loss of attention or business focus; (2) coordinating and integrating research and development and engineering teams across technologies and product platforms to enhance product development while reducing costs; (3) consolidating and integrating corporate, information technology, finance and administrative infrastructures; (4) coordinating sales and marketing efforts to effectively position our capabilities and the direction of product development; and (5) minimizing the diversion of management attention from important business objectives.

If we do not successfully manage these issues and the other challenges inherent in integrating Fairchild, then we may not achieve the anticipated benefits of the Fairchild Transaction and our post-acquisition revenue, expenses, results of operations and financial condition could be materially adversely affected, any of which could materially adversely affect the trading price of our common stock.

Litigation challenging the Fairchild Agreement may prevent the Fairchild Transaction from being consummated at all or within the expected timeframe.

Fairchild, Fairchild’s board of directors, ON Semiconductor and our wholly-owned subsidiary Falcon Operations Sub, Inc. are currently parties to a putative shareholder class action related to the Fairchild Transaction and may be parties to additional, similar claims and litigation. Among other remedies, the plaintiff in the proceeding to which we are a party seeks to enjoin the Fairchild Transaction. The results of complex legal proceedings are difficult to predict and could delay or prevent the Fairchild Transaction from becoming effective in a timely manner. The pending litigation is, and any additional litigation could be, time consuming and expensive, could divert our management’s attention away from their regular business, and, if any one of these lawsuits is adversely resolved against either us or Fairchild, could have a material adverse effect on our financial condition and ability to effect the Fairchild Transaction.

One of the conditions to closing the Fairchild Transaction is that no governmental entity having jurisdiction over us or Fairchild shall have issued an order, decree or ruling or taken any other material action enjoining or otherwise prohibiting the consummation of the Fairchild Transaction substantially on the terms contemplated by the Fairchild Agreement, and that no law shall have been enacted or promulgated by any governmental entity that makes the consummation of the Fairchild Transaction illegal. Consequently, if a settlement or other resolution is not reached in the lawsuits referenced above and the plaintiffs secure injunctive or other relief prohibiting, delaying or otherwise adversely affecting our ability to complete the Fairchild Transaction on terms contemplated by the Fairchild Agreement, then such injunctive or other relief may prevent the Fairchild Transaction from being effective in a timely manner or at all. For additional information regarding this litigation, see Note 12: “Commitments and Contingencies” under the heading “Legal Matters” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K.

The semiconductor industry is characterized by significant price erosion, especially after a product has been on the market for a significant period of time.

One of the results of the rapid innovation in the semiconductor industry is that pricing pressure, especially with respect to products containing older technology, can be intense. Product life cycles are relatively short and, as a result, products tend to be replaced by more technologically advanced substitutes on a frequent basis. In turn, demand for older technology falls, causing the price at which such products can be sold to drop, in some cases precipitously. In order to continue to profitably supply these products, we must reduce our production costs in line with the lower prices we can expect to receive per unit. Usually, this must be accomplished through improvements in process technology and production efficiencies. If we cannot advance our process technologies or improve our efficiencies to a degree sufficient to maintain required margins, we will no longer be able to make a profit from the sale of these products. Moreover, we may not be able to cease production of such products, either due to contractual obligations or for customer relationship reasons and, as a result, may be required to bear a loss on such products. Should reductions in our manufacturing costs fail to keep pace with reductions in market prices for the products we sell, this could have a material adverse effect on our business or prospects.

Economic conditions, including those related to the credit markets, may adversely affect our industry, business and results of operations.

Adverse global economic conditions may result in fluctuations and reductions in consumer and commercial spending from time to time, and such conditions or uncertainties about such conditions may result in lower orders for our products and make it difficult for us to accurately forecast and plan our future business activities. The

semiconductor industry has often experienced significant downturns in connection with, or in anticipation of,

declines in general economic conditions. Volatility in global economic conditions, including the level of the economic recovery in the United States, the growth rate of the Chinese economy, the effect of conditions in Japan, including a weakened demand environment and Japanese Yen, and economic weakness in many other countries and regions, volatility in oil prices and conflicts in Eastern Europe and the Middle East, may adversely and materially affect our industry, business and results of operations, and we cannot accurately predict volatility or how severe and prolonged any downturn or recovery might be. Reduced spending has in the past driven us and may in the future drive us and our competitors to reduce product pricing, which results in a negative effect on gross profit. In addition, to the extent we incorrectly plan for favorable economic conditions that do not materialize or take longer to materialize than expected, our business and results of operations could be adversely and materially affected. Moreover, volatility in revenues as a result of unpredictable economic conditions may alter our anticipated working capital needs and interfere with our short-term and long-term strategies.

Furthermore, the United States and global credit markets could experience renewed financial turmoil. If the past pressures on credit were renewed or we experience an additional global downturn, we may not be able to obtain additional financing on favorable terms or at all, and we may not be able to refinance, if necessary, any outstanding debt when due, all of which could have a material adverse effect on our business. While we believe we have adequate sources of liquidity, on terms acceptable to us, to meet our anticipated requirements for working capital, debt service and capital expenditures for the immediate future, if our operating results falter and our cash flow or capital resources prove inadequate, or if interest rates increase significantly, we could face liquidity problems that could materially and adversely affect our results of operations and financial condition.

In addition, global financial uncertainty affecting the financial markets and other marketseconomies generally could impact our business in a number of other ways, including causing (1) our customers and consumers in general to defer purchases, (2) our customers difficulties in obtaining sufficient credit to finance purchases of our products and meet their payment obligations to us, (3) our key suppliers to become capacity-constrained or insolvent, resulting in a reduction or interruption in supplies or a significant increase in the price of supplies and (4) our key suppliers to require acceleration of payments to them or our customers to delay payments to us. Any of the foregoing could materially and adversely affect our results of operations and financial condition.

We have made and may continue to make strategic acquisitions of other companies or businesses and these acquisitions introduce significant risks and uncertainties, including risks related to integrating the acquired businesses, incurring additional debt, assuming contingent liabilities or diluting our existing stockholders.

In order to position ourselves to take advantage of growth opportunities, we have made, and may continue to make, strategic acquisitions and alliances that involve significant risks and uncertainties. Successful acquisitions and alliances in the semiconductor industry are difficult to accomplish because they require, among other factors, efficient integration and aligning of product offerings and manufacturing operations and coordination of sales and marketing and research and development efforts. We face risks resulting from the expansion of our operations through acquisitions, including but not limited to: (1) the difficulty of integrating, aligning and coordinating organizations, which will likely be geographically separated and involve separate technologies and corporate cultures; (2) risks of entering new semiconductor markets or regions of the world in which we have limited experience; (3) risks associated with integrating financial reporting and internal control systems of acquired companies; (4) the risk that our due diligence in the acquisition process may not identify compliance issues or other liabilities that are in existence at the time of our acquisitions; (5) the risk that our existing or prospective customers or customers of the acquired business may delay or defer their purchasing or other decisions as we integrate new businesses and companies into our business, or that they may seek to change their existing business relationships; (6) challenges in achieving strategic objectives, cost savings and other benefits from acquisitions, including difficulties in entering into new market segments in which we are not experienced;

(7) the risk that our markets do not evolve as anticipated and that the technologies acquired do not prove to be those needed to be successful in those markets; (8) difficulties in expanding information technology systems and other business processes to accommodate the acquired businesses; (9) the diversion of management’s attention from the daily operations of existing businesses; and (10) negative pressure on gross margins resulting from increased operating and restructuring costs.

The integration of newly acquired businesses will also require a significant amount of time and attention from management. The diversion of management attention away from ongoing operations and key research and development, marketing or sales efforts could adversely affect ongoing operations and business relationships. Moreover, even if we were able to fully integrate a new acquisition’s business operations and other assets successfully, there can be no assurance that such integration will result in the realization of the full benefits of synergies, cost savings, innovation and operational efficiencies that may be possible or were anticipated from the acquisition or that these benefits will be achieved within a reasonable period of time. Delays in integrating our acquisitions, which could be caused by factors outside of our control, could adversely affect the intended benefits of the acquisitions to our business, financial results, financial condition and the trading price of our stock price.and other securities.

In addition, current and prospective employees could experience uncertainty about their future with us, and as a result, we could lose key employees. These uncertainties may also impair our ability to recruit or motivate key personnel. In connection with a transaction, key employees of acquired businesses may receive substantial value in the form of change-in-control agreements, acceleration of stock options and the lifting of restrictions on other equity-based compensation rights. These amounts could impact their willingness to continue to work for us. Further, as a result of our acquisitions, we may assume liabilities from the target’s current employee benefit plans that may require us to bring plan documentation into compliance with current law, including ensuring that plans are adequately funded.

In connection with our acquisition activity, we are required by generally accepted accounting principles and SEC rules and regulations to integrate newly acquired businesses into our consolidated financial statements. The acquired businesses may not have independent audited financial statements, or if they do have independent audited financial statements, such statements may not be prepared under generally accepted accounting principles in the United States. Acquired businesses may have financial controls and systems that are not compatible with our financial controls and systems, which could materially impair our ability to obtain or prepare necessary financial information concerning such businesses in a format required to allow proper integration with our systems and financial statements. In addition, immediately after an acquisition and until such time as we are able to fully integrate an acquired business into our financial statements, we may be dependent on the acquired business’ financial controls and systems for reporting and other financial information, including projections and goals for such acquired business. We may not be able to successfully prepare and file required financial statements or other financial information for the acquired business, or to integrate the acquired business into our financial controls and systems and our consolidated financial statements in a timely manner. Failure to prepare accurate financial reports for our acquired businesses in a timely manner in accordance with generally accepted accounting principles in the United States could cause material inaccuracies in our financial statements and SEC filings, which could result in the necessity to restate our financials or lead to unknown liabilities and possibly result in a material impact on the trading price of our stock price.and other securities.

In connection with an acquisition, including the acquisition of Fairchild, it is possible that we may anticipate tax savings through integration of the newly acquired business into our business and rationalization of a combined infrastructure. As with any estimate, it is possible that the estimates of the potential savings could turn out to be incorrect.

We review goodwill associated with our acquisitions for impairment at least on an annual basis (see Part II, Item 7: “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” Note 2: “Significant Accounting Policies—Policies - Goodwill” and Note 5: “Goodwill and Intangible Assets” of the notes to our consolidated audited financial statements located elsewhere in this Form 10-K for additional information about goodwill). In the past, we have recorded goodwill impairment charges related to certain of our acquisitions. Factors we consider important that could result in a subsequent impairment to goodwill include significant underperformance relative to historical or projected future operating results, significant changes in the manner of the use of our assets or the strategy for our overall business and significant negative industry or economic trends. We may have further material goodwill impairments which could adversely affect our financial condition and results of operations.

In addition, we may also issue equity securities to pay for future acquisitions or alliances, which could be dilutive to existing stockholders. We may also incur debt or assume contingent liabilities in connection with acquisitions and alliances, which could harm our financial position and operating results. In any such case, it is possible that factors outside of our control, including but not limited to increases in interest rates and loss of key customers, could adversely affect the intended benefits from an acquisition, even though we would continue to have a repayment obligation under the related loan agreement.

Our gross profit is dependent on a number of factors, including our level of capacity utilization and realizing expected synergies from acquisitions.

Semiconductor manufacturing requires significant capital investment, leading to high fixed costs includingand depreciation expense. We believe that our success materially depends on our ability to maintain or improve our current margin levels related to our manufacturing. For instance, if we are unable to utilize our manufacturing and testing facilities at a high level, the fixed costs associated with these facilities will not be fully absorbed, resulting in higher average unit costs and lower gross profits.

Moreover, we believe that we will need to continue to improve the margin levels of our System Solutions Group business and successfully execute on available opportunities in order to realize the intended benefits of this transaction.Group. While we anticipate that certain cost reduction measures taken, including voluntary retirement programs implemented in 2013 and 2014, should improve itsthe margin levels of the System Solutions Group business, we may not be able to benefit fully from such actions.actions and may need to take additional cost reduction measures.

The failure to successfully implement profitability enhancement programs and cost reductions, including restructuring activities, could adversely affect our business.

From time to time, we have implemented various cost reduction initiatives in response to, among other factors, significant downturns in our industry. These initiatives have included accelerating our manufacturing moves into lower cost regions, transitioning higher-cost external supply to internal manufacturing, working with our material suppliers to further lower costs, personnel reductions, reductions in employee compensation, temporary shutdowns of facilities with mandatory vacation and aggressively streamlining our overhead. In the past, we have recorded net restructuring charges to cover costs associated with our cost reduction initiatives. These costs have been primarily composed of employee separation costs and asset impairments. See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Operating Expenses” under the heading “Restructuring, asset impairments and other, net” and Note 6: “Restructuring, Asset Impairments and Other, Net” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information on restructuring activities.

We also often undertake restructuring activities in connection with our business acquisitions, which can result in significant charges, including charges for severance payments to terminated employees and asset impairment charges.

We cannot assure you that our restructuring plans and cost reduction initiatives will be successfully or timely implemented, or that they will materially and positively impact our profitability. Because our restructuring activities involve changes to many aspects of our business, the cost reductions could adversely impact productivity and sales to an extent we have not anticipated. Even if we fully execute and implement these activities and they generate the anticipated cost savings, there may be other unforeseeable and unintended factors or consequences that could adversely impact our profitability and business, including unintended employee attrition.

For additional information regarding our profitability enhancement programs and cost reduction measures, see Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Operating Expenses” under the heading “Restructuring, asset impairments and other, net” and Note 6: “Restructuring, Asset Impairments and Other, Net” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K.

If we are unable to implement our business strategy, our revenues and profitability may be adversely affected.

Our future financial performance and success are largely dependent on our ability to implement our business strategy successfully. Our present business strategy to build upon our position as a global supplier of power and data management semiconductors and standard semiconductor components includes, without limitation, plans to: (1) continue to aggressively manage, maintain and refine our product portfolio; (2) continue to develop leading edge customer support services; (3) further expand our just-in-time delivery capabilities; (4) increase our die manufacturing capacity in a cost-effective manner; (5) further reduce the number of our product platforms and process flows; (6) rationalize our manufacturing operations; (7) relocate manufacturing operations or outsource to lower cost regions; (8) reduce selling and administrative expenses; (9) manage capital expenditures to forecasted production demands; (10) actively manage working capital; (11) develop new products in a more efficient manner; and (12) integrate newly acquired products, manufacturing capabilities and sales channels. We cannot assure you that we will successfully implement our business strategy or that implementing our strategy will sustain or improve our results of operations. In particular, we cannot assure you that we will be able to build our position in markets with high growth potential, increase our volume or revenue, rationalize our manufacturing operations or reduce our costs and expenses.

Our business strategy is based on our assumptions about the future demand for our current products, and the new products and applications that we are developing, and on our ability to produce our products profitably. Each of these factors depends on our ability, among other factors, to finance our operating and product development activities, maintain high quality and efficient manufacturing operations, relocate and close manufacturing facilities and reduce operating expenses as part of our ongoing cost restructuring with minimal disruption to our operations, access quality raw materials and contract manufacturing services in a cost-effective and timely manner, protect our IP portfolio and attract and retain highly-skilled technical, managerial, marketing and finance personnel. Several of these factors and other factors that could affect our ability to implement our business strategy, such as risks associated with international operations, the threat or occurrence of armed international conflict and terrorist activities, the impact of natural disasters and cyber attacks, increased competition, legal developments and general economic conditions, are beyond our control. In addition, circumstances beyond our control and changes in our business or industry may require us to change our business strategy.

We may be unable to make the substantial research and development investments required to remain competitive in our business.

The semiconductor industry requires substantial investment in research and development in order to develop and bring to market new and enhanced technologies and products. We cannot assure you that we will have sufficient resources to maintain the level of investment in research and development that is required to remain competitive. See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Operating Expenses” under the heading “Research and Development” for a description of our expenditures for research and development.

An inability to introduce new products could adversely affect us, and changing technologies or consumption patterns could reduce the demand for our products.

Rapidly changing technologies and industry standards, along with frequent new product introductions, characterize the industries that are currently the primary end-users of semiconductors. As these industries evolve and introduce new products, our success will depend on our ability to predict and adapt to these changes in a timely and cost-effective manner by designing, developing, manufacturing, marketing and providing customer support for our own new products and technologies. The development of new products is a complex and time-consuming process and often requires significant capital investment. Additionally, expenditures for technology and product development are generally made before the commercial viability for such developments can be assured. There can be no assurance that we will win competitive bid selection processes, known as “design wins,” for new products. New products and enhancements to existing products can require long development and testing periods. Significant delays in new product releases or significant problems in creating new products, including any delays in establishing sufficient manufacturing capacity, could adversely affect our ability to generate revenue. In addition, design wins do not guarantee that we will make customer sales or that we will generate sufficient revenue to recover design and development investments.

We cannot assure you that we will be able to identify changes in the product markets and requirements of our customers and end-users, including changes due to evolving consumer preferences, international political developments influencing end-user preferences, and natural disasters or other extraordinary events that impact our customers or end-users and adapt to such changes in a timely and cost-effective manner. Nor can we assure you that products or technologies that may be developed in the future by our competitors and others will not render our products or technologies obsolete or noncompetitive. There is no assurance that the products we develop and market will be well received by customers, that we will realize a return on the capital expended to develop new products, that a significant investment in new products will be profitable or that we will have margins as high as we anticipate at the time of investment or have experienced historically. Further, a fundamental shift in technologies or consumption patterns in our existing product markets or the product markets of our customers or end-users could have a material adverse effect on our business or prospects.

Uncertainties involving the timing and amount of orders, and payment for, our products could adversely affect our business.

Our sales are typically made pursuant to individual purchase orders or customer agreements, and we generally do not have long-term supply arrangements with our customers. Generally, our customers may cancel orders 30 days prior to shipment for standard products and 90 days for custom products without incurring a significant penalty. We routinely generate inventory based on customers’ estimates of demand for their products, which is difficult to predict. This difficulty may be compounded when we sell to OEMs indirectly through distributors or contract manufacturers, or both, as our forecasts for demand are then based on estimates provided by multiple parties. In

addition, our customers may change their inventory practices on short notice for any reason. Furthermore, short customer lead times are standard in the industry due to overcapacity. The cancellation or deferral of product orders, the return of previously sold products or overproduction due to the failure of anticipated orders to materialize could result in excess obsolete inventory, which could result in write-downs of inventory or the incurrence of significant cancellation penalties under our arrangements with our raw materials and equipment suppliers.

Competition in our industry could prevent us from maintaining our revenues and from raising prices to offset increases in costs.

The semiconductor industry is highly competitive, and our ability to compete successfully depends on elements both within and outside of our control, including industry and general economic trends. Although only a few companies compete with us in most of our product lines, we face significant competition within each of our product lines from major global semiconductor companies as well as smaller companies focused on specific market niches. Because our components are often building block semiconductors that, in some cases, are integrated into more complex ICs, we also face competition from manufacturers of ICs, ASICs and fully customized ICs, as well as from customers who develop their own IC products. In addition, companies not currently in direct competition with us may introduce competing products in the future. In different product lines, we compete, to varying degrees, on the basis of price, quality, technical performance, product features, product system compatibility, customized design, strategic relationships with customers, new product innovation, availability, delivery timing and reliability and customer sales and technical support. Gross margins in the industry vary by geographic region depending on local demand for the products in which semiconductors are used, such as personal computers, tablets, industrial and telecommunications equipment, consumer electronics and automotive goods. Any inability to maintain revenues or raise prices to offset increases in costs could have a material adverse effect on our gross margin and on our business and prospects as a whole.

The semiconductor components industry has also been undergoing significant restructuring and consolidation that could adversely affect our competitiveness. Many of our competitors, particularly larger competitors resulting from consolidations, may have certain advantages over us, including: substantially greater financial and other resources with which to withstand adverse economic or market conditions and pursue development, engineering, manufacturing, marketing and distribution of their products; longer independent operating histories; presence in key markets; patent protection; and greater name recognition.

Unless we maintain manufacturing efficiency, our future profitability could be adversely affected.

Manufacturing semiconductor components involves highly complex processes that require advanced equipment. We and our competitors continuously modify these processes in an effort to improve yields and product performance. Impurities or other difficulties in the manufacturing process can lower yields. Our manufacturing efficiency is and will continue to be an important factor in our future profitability, and we cannot assure you that we will be able to maintain our manufacturing efficiency or increase manufacturing efficiency to the same extent as our competitors.

From time to time, we have experienced difficulty in beginning production at new facilities, transferring production to other facilities or in effecting transitions to new manufacturing processes that have caused us to suffer delays in product deliveries or reduced yields. We cannot assure you that we will not experience manufacturing problems in achieving acceptable yields or experience product delivery delays in the future as a result of, among other conditions and events, capacity constraints, construction delays, transferring production to other facilities (including as a part of our cost reduction measures and in reaction to man-made and natural

disasters, such as the 2011 flooding in Thailand), upgrading or expanding existing facilities, changing our process technologies or uncertainty as a result of the acquisition and integration of manufacturing facilities acquired as a result of our acquisition activities, any of which could result in a loss of future revenues. Our results of operations could also be adversely affected by the increase in fixed costs and operating expenses related to increases in production capacity, if revenues do not increase proportionately.

We could be required to incur significant capital expenditures for manufacturing, information technology and equipment to remain competitive, and any failure, inadequacy or delayed implementation could harm our ability to effectively operate our business. Such capital expenditures and commitments, as well as other commitments, may materially decrease our liquidity.

Our principal sources of liquidity are cash on hand, cash generated from operations and funds from external borrowings and equity issuances. Semiconductor manufacturing has historically required a constant upgrading of process technology to remain competitive, as new and enhanced semiconductor processes are developed which permit smaller, more efficient and more powerful semiconductor devices. Our manufacturing, assembly and test facilities have required and will continue to require significant investments in manufacturing technology and equipment. We have made substantial capital expenditures and installed significant production capacity to support new technologies and increased production volume. However, there can be no assurance that we will successfully develop and utilize these new technologies. There also is no assurance that the new technologies we do develop and utilize will be sufficient to support our business operations and strategies, or that we will realize a return on the capital expended to develop such new technologies.

We also may incur significant costs to implement new manufacturing and information technologies to increase our productivity and efficiency. Any such implementation, however, can be negatively impacted by failures or inadequacies of the new manufacturing or information technology and unforeseen delays in its implementation, any of which may require us to spend additional resources to correct these problems or, in some instances, to conclude that the new technology implementation should be abandoned. In the case of abandonment, we may have to recognize losses for amounts previously expended in connection with such implementation that have been capitalized on our balance sheet.

In the recent past, we have undertaken various and material cost reduction measures which we believe have been largely successful. However, these reductions, and any future reductions, may unintentionally affect our ability to remain competitive in efficiency and productivity. Ultimately, we may be forced to increase our future capital expenditures in unexpected ways to meet our operational needs in, among other areas, manufacturing, information technology and equipment. We cannot assure you that we will have sufficient capital resources to make timely and necessary investments in the areas discussed above or other areas we have not identified.

We are subject to risks associated with natural disasters and other business disruptions.

Our worldwide operations are subject to natural disasters and other business disruptions from time to time, which could adversely impact our business, results of operations and financial reporting and condition. We are susceptible to losses and interruptions caused by floods, hurricanes, typhoons, droughts, and other extreme weather conditions, earthquakes, tsunamis, volcanoes, and similar natural disasters, as well as power outages, power shortages, telecommunications failures, industrial accidents, and similar events. Such events can cause direct injury or damage to our employees and property, including our books and financial and corporate records and data, and related internal controls, and can also have significant direct and indirect consequences. For example, such events can negatively impact revenues and earnings and can significantly impact cash flow, both from decreased revenue and from increased costs associated with the event. Such costs may include expenses to

restore production or to move production to other facilities, including incremental capital expenditures and costs for expedited shipping, expenses incurred with a shut-down of the damaged facility, including employee severance payments, and other unusual costs and expenses such as fixed asset impairments, inventory write-downs, charges relating to cancellation of purchase orders for excess materials and charges for restoration and recovery work. Overall costs may also be impacted by other factors, such as the under-absorption of our manufacturing and operating support overhead. For example, in the case of our facility in Roznov, Czech Republic that manufactures silicon wafers used by a number of our facilities, any natural or man-made disaster, operational disruption, or other extraordinary event that impacted the facility or regional infrastructure would have a substantial adverse effect on our ability to produce a number of our products and could have a material adverse effect on our business, revenues, costs, and/or prospects if we were unable to effectively source silicon wafers on acceptable terms from qualified third parties to replace the production loss. Such events may also affect the infrastructure of the country in which the event occurs, causing water damage, power outages and rolling blackouts, transportation delays and restrictions, public health issues and economic instability and disrupting local and international supply chains. As a result, we could experience shortages of, and interruptions in supply and increased prices for, components that we source from companies located in or with operations in any such country, as well as from other suppliers whose supply chains may similarly be affected. Such shortages and interruptions may also affect our ability to communicate with our customers and suppliers and to timely deliver our products to customers and, as a result, our customers may seek substitute products from other manufacturers. In addition, damage or destruction to our books and financial and corporate records and data could adversely affect our ability to prepare our financial statements in accordance with generally accepted accounting principles and the historical and future reporting of our financial results and our ability to integrate the financial reporting and internal control systems of acquired companies. Responding to natural disasters and their consequences will also require a significant amount of time and attention from management. The diversion of management attention away from ongoing operations and key research and development, marketing or sales efforts could adversely affect ongoing operations and business relationships. Although we carry insurance to generally compensate for losses of the type noted above, such insurance may be subject to deductible and coverage limits and may not be adequate to cover all losses that may be incurred or continue to be available in the affected area at commercially reasonable rates and terms.

If we were to lose one of our large customers, our revenues and profitability could be adversely affected.

Product sales to our ten largest customers have traditionally accounted for a significant amount of our business. Many of our customers operate in cyclical industries, and, in the past, we have experienced significant fluctuations from period to period in the volume of our products ordered. Generally, our agreements with our customers impose no minimum or continuing obligations to purchase our products. We cannot assure you that any of our customers will not turn to other suppliers, significantly reduce orders or seek price reductions in the future or that the loss of one or more of our customers would not have a material adverse effect on our business or prospects. See Part I, Item 1 “Business - Customers” for a description of revenues from our largest customers.

We rely on customers in the automotive and communications industries for a significant portion of our revenue.

A significant portion of our sales are to customers within the automotive and communications industries (including networking). Sales into these industries represented approximately 33% and 18% of our revenue, respectively, for the year ended December 31, 2015, and those percentages will vary from quarter to quarter. Both the automotive and communications industries are cyclical, and, as a result, our customers in these industries are sensitive to changes in general economic conditions, which can adversely affect sales of our products.

Additionally, the quantity and price of our products sold to customers in these industries could decline despite continued growth in these end markets. Lower sales to customers in the automotive or communications industry may have a material adverse effect on our business, financial condition and results of operations.

The loss of our sources of raw materials or manufacturing services, or increases in the prices of such goods or services, could adversely affect our operations and productivity.

Our results of operations could be adversely affected if we are unable to obtain adequate supplies of raw materials in a timely manner, the costs of our raw materials increase significantly, their quality deteriorates or the raw materials give rise to compatibility or performance issues in our products. Our manufacturing processes rely on many raw materials, including polysilicon, silicon wafers, gold, copper, lead frames, mold compound, ceramic packages and various chemicals and gases. Generally, our agreements with suppliers impose no minimum or continuing supply obligations, and we obtain our raw materials and supplies from a large number of sources on a just-in-time basis. From time to time, suppliers may extend lead times, limit supplies or increase prices due to capacity constraints or other factors. Although we believe that our current supplies of raw materials are adequate, shortages could occur in various essential materials due to interruption of supply or increased demand in the industry.

In addition, for some of our products, we are dependent upon a limited number of highly specialized suppliers for required components and materials. The number of qualified alternative suppliers for these kinds of technologies is extremely limited. The inability of such suppliers to deliver adequate supplies of production materials or other supplies could disrupt production in material ways. In addition, we cannot assure you that we will not lose our suppliers for these key technologies or that our suppliers will be able to meet performance and quality specifications or delivery schedules. Disruption or termination of our limited supply sources for these components and materials could delay our shipments of products utilizing these technologies and damage relationships with current and prospective customers.

We also use third-party contractors for some of our manufacturing activities, primarily for wafer fabrication and the assembly and testing of final goods. Our agreements with these manufacturers typically require us to forecast product needs and commit to purchase services consistent with these forecasts and, in some cases, require longer-term commitments in the early stages of the relationship. Our operations and customer relations could be materially adversely affected if these contractual relationships were disrupted or terminated, the cost of such services increased significantly, the quality of the services provided deteriorated or our forecasts proved to be materially incorrect. In any such case, arranging for replacement contractors can be time consuming and costly, and we may encounter start-up difficulties.

Our international operations subject us to risks inherent in doing business on an international level that could adversely impact our results of operations.

A significant amount of our total revenue is derived from the Asia/Pacific region, the Americas, and Europe, and we maintain significant operations in these regions. In addition, we rely on a number of contract manufacturers whose operations are primarily located in the Asia/Pacific region. We cannot assure you that we will be successful in overcoming the risks that relate to or arise from operating in international markets. Risks inherent in doing business on an international level include, among others, the following:

Other activities outside the United States are subject to additional risks associated with fluctuating currency values and exchange rates, hard currency shortages and controls on currency exchange. For instance, while our sales are primarily denominated in U.S. dollars, worldwide semiconductor pricing is influenced by currency rate fluctuations.

The Company could be subject to changes in its tax rates, the adoption of new U.S. or international tax legislation or exposure to additional tax liabilities.

We have historically benefited from relatively low effective tax rates because most of our income has been earned and reinvested in jurisdictions outside the U.S. However, our effective tax rate is uncertain on an ongoing basis. Changes to income tax regulations in the United States and the jurisdictions in which we operate, or in the interpretation of such laws, could, under our existing tax structure, significantly increase our effective tax rate and ultimately reduce our cash flow from operations and otherwise have a material adverse effect on our financial condition. In addition, other factors or events, including business combinations and investment transactions, changes in the valuation of our deferred tax assets and liabilities, adjustments to income taxes upon finalization of various tax returns or as a result of deficiencies asserted by taxing authorities, increases in expenses not deductible for tax purposes, changes in available tax credits, increasing operations in high tax jurisdictions, and changes in tax rates, could also increase our future effective tax rate.

Our tax filings are subject to review or audit by the Internal Revenue Service and state, local and foreign taxing authorities. We exercise significant judgment in determining our worldwide provision for income taxes and, in the ordinary course of our business, there may be transactions and calculations where the ultimate tax determination is uncertain. We are also liable for potential tax liabilities of businesses we acquire. Although we believe our tax estimates are reasonable, the final determination in an audit may be materially different than the treatment reflected in our historical income tax provisions and accruals. An assessment of additional taxes because of an audit could have a material adverse effect on our business, financial condition, operating results and cash flows.

Further changes in the tax laws of foreign jurisdictions could arise as a result of the base erosion and profit shifting project that was undertaken by the Organization for Economic Co-operation and Development (“OECD”). The OECD, which represents a coalition of member countries, recommended changes to numerous long-standing tax principles. These changes, if adopted by countries, could increase tax uncertainty and may adversely affect our provision for income taxes. In the U.S., a number of proposals for broad reform of the corporate tax system are under evaluation by various legislative and administrative bodies, but it is not possible to accurately determine the overall impact of such proposals on our effective tax rate at this time.

The distribution of any earnings of our foreign subsidiaries to the United States may be subject to United States income taxes, thus reducing our net income.

We hold a significant amount of cash and cash equivalents outside the United States in various foreign subsidiaries. As we intend to reinvest certain of our foreign earnings indefinitely, this cash held outside the United States in various foreign subsidiaries is not readily available to meet certain of our cash requirements in the United States. We require a substantial amount of cash in the United States for operating requirements, debt repurchases, payments, acquisitions, including our potential acquisition of Fairchild, and stock repurchases. If we are unable to address our U.S. cash requirements through operations, through borrowings under our current debt agreements or from other sources of cash obtained at an acceptable cost, it may be necessary for us to consider repatriation of earnings that are permanently reinvested, and we may be required to pay additional taxes under current tax laws, which could have a material effect on our results of operations and financial condition.

Except as required under U.S. tax law, we do not provide for U.S. taxes on our undistributed earnings of foreign subsidiaries that have not been previously taxed since we intend to invest such undistributed earnings indefinitely outside of the U.S. If our intent changes or if these funds are needed for our U.S. operations, we would be required to accrue or pay U.S. taxes on some or all of these undistributed earnings. Any such taxes would reduce our net income in the period in which these earnings are distributed.

We operate a global business through numerous foreign subsidiaries, and there is a risk that tax authorities will challenge our transfer pricing methodologies and/or legal entity structures, which could adversely affect our operating results and financial condition.

We conduct operations worldwide through our foreign subsidiaries, and are therefore subject to complex transfer pricing regulations in the jurisdictions in which we operate. Transfer pricing regulations generally require that, for tax purposes, transactions between related parties be priced on a basis that would be comparable to an arm’s length transaction between unrelated parties. There is uncertainty and inherent subjectivity in complying with these rules. To the extent that any foreign tax authorities disagree with our transfer pricing policies, we could become subject to significant tax liabilities and penalties. Based on our current knowledge and probability assessment of potential outcomes, we believe that we have provided for all tax exposures. However, the ultimate outcome of a tax examination could differ materially from our provisions and could have a material adverse effect on our business, financial condition, operating results and cash flows.

Our legal organizational structure could result in unanticipated unfavorable tax or other consequences which could have a material adverse effect on our financial condition and operational results. Changes in tax laws, regulations, future jurisdictional profitability of us and our subsidiaries, and related regulatory interpretations in the countries in which we operate may impact the taxes we pay or tax provision we record, which could have a material adverse effect on our operating results. In addition, any challenges to how our entities are structured or realigned or their business purpose by taxing authorities could result in us becoming subject to significant tax liabilities and penalties which could have a material adverse effect on our business, financial condition, operating results and cash flows.

A significant amount of our international business is transacted in local currency and a significant percentage of our cash and cash equivalents are held outside of the United States, which exposes us to risk relating to currency fluctuations, changes in foreign exchange regulations and repatriation delays and costs, which could negatively impact our sales, profitability and financial flexibility.

We have sizeable sales and operations in Asia and European regions. A significant amount of this business is transacted in local currency. As a result, our financial performance is impacted by currency fluctuations.

A significant percentage of our cash and cash equivalents is currently held outside the United States, and we continue to generate profits outside of the United States, while many of our liabilities, including our outstanding indebtedness, and certain other cash payments, such as share repurchases, are payable in U.S. dollars.

Repatriation of some of the funds held outside the United States could have potential adverse tax consequences and could be subject to delay because of required local country approvals or local obligations. In addition, at times we are required to make cash deposits to support bank guarantees of our obligations under certain office leases or amounts we owe to certain vendors from whom we purchase goods and services. Nearly all of these arrangements are outside of the United States, and these cash deposits are not available for other uses as long as the bank guarantees are outstanding. Foreign exchange regulations may also limit our ability to convert or repatriate foreign currency. As a result of having a lower amount of cash and cash equivalents in the United States, our financial flexibility may be reduced, which could have an adverse effect on our ability to make interest and principal payments due under our various debt obligations. Our balance of cash, cash equivalents and short-term investments was $517.8 million at December 31, 2014 and our balance of cash and cash equivalents was $617.6 million at December 31, 2015, and of those amounts, approximately $203.6 million and $240.7 million was available in the United States at December 31, 2014 and 2015, respectively.

If we fail to attract and retain highly skilled personnel, our results of operations and competitive position could deteriorate.

Our success, both generally and in connection with mergers and acquisitions, depends upon our ability to attract, retain and motivate highly-skilled design, technical, managerial, marketing and financial personnel. The market for personnel with such qualifications is highly competitive. In addition, from time to time, we have announced certain cost reductions that included the freezing of salaries and elimination of bonuses, mandatory unpaid time off, factory shutdowns and reduction in personnel. We also establish performance criteria for awards to officers and employees under bonus and other incentive plans and programs that may not be satisfied. These measures, as well as any future measures, could negatively affect morale and lead to unintended employee attrition at all levels of our organization. Moreover, we have not entered into employment agreements with all of our key personnel and our existing employment agreements do not require the employee to continue to work for us.

As employee incentives, we have issued common stock options that generally have exercise prices at the market value at the time of the grant and that are subject to vesting over time, RSUs with time-based vesting and performance-based awards. Any difficulty relating to obtaining stockholder approval of new, or amendments to, equity compensation plans could limit our ability to issue these types of awards. Our stock price at times has declined substantially, reducing the effectiveness of certain of these incentives. Loss of the services of, or failure to effectively recruit, qualified personnel, including senior managers and design engineers, could have a material adverse effect on our business.

We use a significant amount of intellectual property in our business. Some of that intellectual property is currently subject to disputes with third parties, and litigation could arise in the future. If we are unable to protect the intellectual property we use, our business could be adversely affected.

We rely on various laws and regulations governing our registered and unregistered IP assets, patents, trade secrets, trademarks, mask works and copyrights to protect our products and technologies. These laws and regulations are subject to legislative and regulatory change and interpretation by courts. Additionally, some of our products and technologies are not covered by any patents or pending patent applications. With respect to our IP generally, we cannot assure you that:

In addition, our competitors or others may develop products or technologies that are similar or superior to our products or technologies, duplicate our products or technologies or design around our protected technologies. Effective IP protection may be unavailable, limited or not applied for in the United States and in foreign countries.

Also, we may from time to time in the future be notified of claims that we may be infringing third-party IP rights. If necessary or desirable, we may seek licenses under such IP rights. However, we cannot assure you that we will obtain such licenses or that the terms of any offered licenses will be acceptable to us. The failure to obtain a license from a third party for IP we use could cause us to incur substantial liabilities or to suspend the manufacture or shipment of products or our use of processes requiring the technologies. Litigation could cause us to incur significant expense by adversely affecting sales of the challenged product or technologies and diverting the efforts of our technical and management personnel, whether or not such litigation is resolved in our favor. In the event of an adverse outcome in any such litigation, we may be required to:

We cannot assure you that we would be successful in any such development or acquisition. Any such development, acquisition or license could require the expenditure of substantial time and other resources.

We also seek to protect our proprietary technologies, including technologies that may not be patented or patentable, in part by confidentiality agreements and, if applicable, inventors’ rights agreements with our collaborators, advisors, employees and consultants. We cannot assure you that these agreements will not be breached, that we will have adequate remedies for any breach or that persons or institutions will not assert rights to IP arising out of our research.

We may not be able to enforce or protect our intellectual property rights, which may harm our ability to compete and adversely affect our business.

Our ability to enforce our patents, trademarks, copyrights, software licenses and other IP is subject to general litigation risks, as well as uncertainty as to the enforceability of our IP rights in various countries. When we seek to enforce our rights, we are often subject to claims that the IP right is invalid, is otherwise not enforceable or is licensed to the party against whom we are asserting a claim. In addition, our assertion of IP rights often results in the other party seeking to assert alleged IP rights of its own against us, which may adversely impact our business. An unfavorable ruling in these sorts of matters could include money damages or, in cases for which injunctive relief is sought, an injunction prohibiting us from manufacturing or selling one or more products, which could in turn negatively affect our business, financial condition, results of operations or cash flows. We can provide no assurances as to the outcome of these claims asserted by other parties with respect to their alleged IP rights.

We are subject to litigation risks, including securities class action litigation, which may be costly to defend and the outcome of which is uncertain.

All industries, including the semiconductor industry, are subject to legal claims, including securities litigation, litigation in connection with acquisitions and litigation over executive compensation and disclosure of executive compensation. The price of our common stock has been, and may continue to be, volatile, and we can provide no assurance that securities litigation will not be filed against us in the future. In addition, we can provide no assurance that our past or future acquisitions and executive compensation will not subject us to additional litigation. This sort of litigation can be particularly costly and may divert the attention of our management and our resources in general. We are involved in a variety of legal matters, most of which we consider either routine matters that arise in the normal course of business or immaterial for our aggregate business operations. These routine matters typically fall into broad categories such as those involving suppliers and customers, employment and labor and IP. We believe it is unlikely that the final outcome of these legal claims will have a material adverse effect on our financial position, results of operations or cash flows. However, defense and settlement costs can be substantial, even with respect to claims that we believe have no merit. Due to the inherent uncertainty of the litigation process, the resolution of any particular legal claim or proceeding could have a material effect on our business, financial condition, results of operations or cash flows. Further, uncertainties resulting from the initiation and continuation of securities or other litigation could harm our ability to obtain credit and financing for our operations and to compete in the marketplace. See Part I, Item 3 “Legal Proceedings” of this report for more information on our legal proceedings.

We are exposed to increased costs and risks associated with complying with increasing and new regulation of corporate governance and disclosure standards.

Like most publicly traded companies, we incur significant cost and spend a significant amount of management time and internal resources to comply with changing laws, regulations and standards relating to corporate governance and public disclosure, which requires management’s annual review and evaluation of our internal control over financial reporting and attestations of the effectiveness of these systems by our management and by our independent registered public accounting firm. As we continue to make strategic acquisitions, mergers and alliances, the integration of these businesses increases the complexity of our systems of controls. While we devote significant resources and time to comply with the internal control over financial reporting requirements under Section 404 of the Sarbanes-Oxley Act of 2002 (“SOX”), we cannot be certain that these measures will ensure that we design, implement and maintain adequate control over our financial process and reporting in the future.

There can be no assurance that we or our independent registered public accounting firm will not identify a material weakness in the combined company’s internal control over financial reporting in the future. Failure to comply with SOX, including delaying or failing to successfully integrate our acquisitions into our internal control over financial reporting or the identification and reporting of a material weakness, may cause investors to lose confidence in our consolidated financial statements or even in our ability to recognize the anticipated synergies and benefits of such transactions, and the trading price of our common stock or other securities may decline. In addition, if we fail to remedy any material weakness, our investors and others may lose confidence in our financial statements, our financial statements may be materially inaccurate, our access to capital markets may be restricted and the trading price of our common stock may decline. See Part II, Item 9A “Controls and Procedures” of this report for information on disclosure controls and procedures and internal controls over financial reporting.

Regulations that impose disclosure requirements regarding the use of “conflict” minerals mined from the Democratic Republic of Congo and adjoining countries in our products will result in additional cost and expense and could result in other significant adverse effects.

Rules adopted by the SEC implementing the Dodd-Frank Wall Street Reform and Consumer Protection Act impose diligence and disclosure requirements regarding the use of “conflict” minerals mined from the Democratic Republic of Congo and adjoining countries in our products. Compliance with these rules will result in additional cost and expense, including for due diligence to determine and verify the sources of any conflict minerals used in our products, in addition to the cost of remediation and other changes to products, processes, or sources of supply as a consequence of such verification activities. These rules may also affect the sourcing and availability of minerals used in the manufacture of our semiconductor devices as there may be only a limited number of suppliers offering “conflict free” metals or components that can be used in our products. There can be no assurance that we will be able to obtain such metals or components in sufficient quantities or at competitive prices. The cost of compliance to our service providers, foundries, subcontractors and suppliers could also be passed along to us, resulting in higher prices for the materials or components we use in our products. Also, since our supply chain is complex, we may face reputational challenges with our customers, stockholders and other stakeholders if we are unable to sufficiently verify the origins of the metals used in our products. We may also encounter customers who require that all of the components of our products be certified as conflict free. If we are not able to meet customer requirements, such customers may choose to disqualify us as a supplier, which could impact our sales and the value of portions of our inventory.

Our international operations subject us to risks inherent in doing business on an international level that could adversely impact our results of operations.

A significant amount of our total revenue is derived from the Asia/Pacific region, the Americas, and Europe, and we maintain significant operations in these regions. In addition, we rely on a number of contract manufacturers whose operations are primarily located in the Asia/Pacific region. We cannot assure you that we will be successful in overcoming the risks that relate to or arise from operating in international markets. Risks inherent in doing business on an international level include, among others, the following:

In the past, we have benefited from relatively low effective tax rates because most of our income has been earned and reinvested in jurisdictions outside the U.S. Our effective tax rate is uncertain on an ongoing basis. Changes to income tax regulations in the United States and the jurisdictions in which we operate, or in the interpretation of such laws, could, under our existing tax structure, significantly increase our effective tax rate and ultimately reduce our cash flow from operations and otherwise have a material adverse effect on our financial condition. In addition, business combinations and investment transactions, changes in the valuation of our deferred tax assets and liabilities, adjustments to income taxes upon finalization of various tax returns, increases in expenses not deductible for tax purposes and changes in available tax credits could increase our future effective tax rate. Changes in our effective tax rate may impact our results of operations. Tax rates vary among the jurisdictions in which we operate. Our results of operations could be affected by our increasing or decreasing operations in jurisdictions with higher or lower rates, as well as by changes in rates or the laws that determine when we are subject to taxation in a specific jurisdiction.

We hold a significant amount of cash and cash equivalents outside the United States in various foreign subsidiaries. As we intend to reinvest certain of our foreign earnings indefinitely, this cash held outside the United States in various foreign subsidiaries is not readily available to meet certain of our cash requirements in

the United States. We require a substantial amount of cash in the United States for operating requirements, debt repurchases, payments, acquisitions and stock repurchases. If we are unable to address our U.S. cash requirements through operations, through borrowings under our current debt agreements or from other sources of cash obtained at an acceptable cost, it may be necessary for us to consider repatriation of earnings that are permanently reinvested, and we may be required to pay additional taxes under current tax laws, which could have a material effect on our results of operations and financial condition.

Other activities outside the United States are subject to additional risks associated with fluctuating currency values and exchange rates, hard currency shortages and controls on currency exchange. For instance, while our sales are primarily denominated in U.S. dollars, worldwide semiconductor pricing is influenced by currency rate fluctuations.

If we fail to attract and retain highly skilled personnel, our results of operations and competitive position could deteriorate.

Our success, both generally and in connection with mergers and acquisitions, depends upon our ability to attract and retain highly-skilled design, technical, managerial, marketing and financial personnel. The market for personnel with such qualifications is highly competitive. In addition, from time to time, we have announced certain cost reductions that included the freezing of salaries and elimination of bonuses, mandatory unpaid time off, factory shutdowns and reduction in personnel. We also establish performance criteria for awards to officers and employees under bonus and other incentive plans and programs that may not be satisfied. These measures, as well as any future measures, could negatively affect morale and lead to unintended employee attrition at all levels of our organization. Moreover, we have not entered into employment agreements with all of our key personnel and our existing employment agreements do not require the employee to continue to work for us.

As employee incentives, we have issued common stock options that generally have exercise prices at the market value at the time of the grant and that are subject to vesting over time, RSUs with time-based vesting and performance-based awards. Any difficulty relating to obtaining stockholder approval of new, or amendments to, equity compensation plans could limit our ability to issue these types of awards. Our stock price at times has declined substantially, reducing the effectiveness of certain of these incentives. Loss of the services of, or failure to effectively recruit, qualified personnel, including senior managers and design engineers, could have a material adverse effect on our business.

We use a significant amount of intellectual property in our business. Some of that intellectual property is currently subject to disputes with third parties, and litigation could arise in the future. If we are unable to protect the intellectual property we use, our business could be adversely affected.

We rely on various laws and regulations governing our registered and unregistered IP assets, patents, trade secrets, trademarks, mask works and copyrights to protect our products and technologies. These laws and regulations are subject to legislative and regulatory change and interpretation by courts. Additionally, some of our products and technologies are not covered by any patents or pending patent applications. With respect to our IP generally, we cannot assure you that:

In addition, our competitors or others may develop products or technologies that are similar or superior to our products or technologies, duplicate our products or technologies or design around our protected technologies. Effective IP protection may be unavailable, limited or not applied for in the United States and in foreign countries.

Also, we may from time to time in the future be notified of claims that we may be infringing third-party IP rights. If necessary or desirable, we may seek licenses under such IP rights. However, we cannot assure you that we will obtain such licenses or that the terms of any offered licenses will be acceptable to us. The failure to obtain a license from a third party for IP we use could cause us to incur substantial liabilities or to suspend the manufacture or shipment of products or our use of processes requiring the technologies. Litigation could cause us to incur significant expense by adversely affecting sales of the challenged product or technologies and diverting the efforts of our technical and management personnel, whether or not such litigation is resolved in our favor. In the event of an adverse outcome in any such litigation, we may be required to:

We cannot assure you that we would be successful in any such development or acquisition. Any such development, acquisition or license could require the expenditure of substantial time and other resources.

We also seek to protect our proprietary technologies, including technologies that may not be patented or patentable, in part by confidentiality agreements and, if applicable, inventors’ rights agreements with our collaborators, advisors, employees and consultants. We cannot assure you that these agreements will not be breached, that we will have adequate remedies for any breach or that persons or institutions will not assert rights to IP arising out of our research.

We may not be able to enforce or protect our intellectual property rights, which may harm our ability to compete and adversely affect our business.

Our ability to enforce our patents, trademarks, copyrights, software licenses and other IP is subject to general litigation risks, as well as uncertainty as to the enforceability of our IP rights in various countries. When we seek to enforce our rights, we are often subject to claims that the IP right is invalid, is otherwise not enforceable or is licensed to the party against whom we are asserting a claim. In addition, our assertion of IP rights often results in the other party seeking to assert alleged IP rights of its own against us, which may adversely impact our business. An unfavorable ruling in these sorts of matters could include money damages or, in cases for which injunctive relief is sought, an injunction prohibiting us from manufacturing or selling one or more products, which could in turn negatively affect our business, financial condition, results of operations or cash flows. We can provide no assurances as to the outcome of these claims asserted by other parties with respect to their alleged IP rights.

We are subject to litigation risks, including securities class action litigation, which may be costly to defend and the outcome of which is uncertain.

All industries, including the semiconductor industry, are subject to legal claims, including securities litigation, litigation in connection with acquisitions and litigation over executive compensation and disclosure of executive compensation. The price of our common stock has been, and may continue to be, volatile, and we can provide no assurance that securities litigation will not be filed against us in the future. In addition, we can

provide no assurance that our past or future acquisitions and executive compensation will not subject us to additional litigation. This sort of litigation can be particularly costly and may divert the attention of our management and our resources in general. We are involved in a variety of legal matters, most of which we consider either routine matters that arise in the normal course of business or immaterial for our aggregate business operations. These routine matters typically fall into broad categories such as those involving suppliers and customers, employment and labor and IP. We believe it is unlikely that the final outcome of these legal claims will have a material adverse effect on our financial position, results of operations or cash flows. However, defense and settlement costs can be substantial, even with respect to claims that we believe have no merit. Due to the inherent uncertainty of the litigation process, the resolution of any particular legal claim or proceeding could have a material effect on our business, financial condition, results of operations or cash flows. Further, uncertainties resulting from the initiation and continuation of securities or other litigation could harm our ability to obtain credit and financing for our operations and to compete in the marketplace. See Part I, Item 3 “Legal Proceedings” of this report for more information on our legal proceedings.

We are exposed to increased costs and risks associated with complying with increasing and new regulation of corporate governance and disclosure standards.

Like most publicly traded companies, we incur significant cost and spend a significant amount of management time and internal resources to comply with changing laws, regulations and standards relating to corporate governance and public disclosure, which requires management’s annual review and evaluation of our internal control over financial reporting and attestations of the effectiveness of these systems by our management and by our independent registered public accounting firm. As we continue to make strategic acquisitions, mergers and alliances, the integration of these businesses increases the complexity of our systems of controls. While we devote significant resources and time to comply with the internal control over financial reporting requirements under Section 404 of the Sarbanes-Oxley Act of 2002 (“SOX”), we cannot be certain that these measures will ensure that we design, implement and maintain adequate control over our financial process and reporting in the future.

There can be no assurance that we or our independent registered public accounting firm will not identify a material weakness in the combined company’s internal control over financial reporting in the future. Failure to comply with SOX, including delaying or failing to successfully integrate our acquisitions into our internal control over financial reporting or the identification and reporting of a material weakness, may cause investors to lose confidence in our consolidated financial statements or even in our ability to recognize the anticipated synergies and benefits of such transactions, and the trading price of our common stock may decline. In addition, if we fail to remedy any material weakness, our investors and others may lose confidence in our financial statements, our financial statements may be materially inaccurate, our access to capital markets may be restricted and the trading price of our common stock may decline. See Part II, Item 9A “Controls and Procedures” of this report for information on disclosure controls and procedures and internal controls over financial reporting.

Environmental and other regulatory matters could adversely affect our ability to conduct our business and could require expenditures that could have a material adverse effect on our results of operations and financial condition.

Our manufacturing operations are subject to various environmental laws and regulations relating to the management, disposal and remediation of hazardous substances and the emission and discharge of pollutants into the air, water and ground. Our operations are also subject to laws and regulations relating to workplace safety and worker health, which, among other requirements, regulate employee exposure to hazardous substances. Motorola has agreed to indemnify us for certain environmental and health and safety liabilities related to the conduct or operation of our business or Motorola’s ownership, occupancy or use of real property occurring prior to the closing of our 1999 recapitalization and spinout from Motorola. We also have purchased environmental insurance to cover certain claims related to historical contamination and future releases of hazardous substances. However, we cannot assure you that such indemnification arrangements and insurance policy will cover all material environmental costs. In addition, the nature of our operations exposes us to the continuing risk of environmental and health and safety liabilities.

Based on information currently available to us, we believe that the future cost of compliance with existing environmental and health and safety laws and regulations, and any liability for currently known environmental conditions, will not have a material adverse effect on our business or prospects. However, we cannot predict:

Warranty claims, product liability claims and product recalls could harm our business, results of operations and financial condition.

Manufacturing semiconductors is a highly complex and precise process, requiring production in a tightly controlled, clean environment. Minute impurities in our manufacturing materials, contaminants in the manufacturing environment, manufacturing equipment failures, and other defects can cause our products to be non-compliant with customer requirements or otherwise nonfunctional. We face an inherent business risk of exposure to warranty and product liability claims in the event that our products fail to perform as expected or such failure of our products results, or is alleged to result, in bodily injury or property damage (or both). In addition, if any of our designed products are or are alleged to be defective, we may be required to participate in their recall. As suppliers become more integrally involved in the electrical design, OEMs are increasingly expecting them to warrant their products and are increasingly looking to them for contributions when faced with product liability claims or recalls. A successful warranty or product liability claim against us in excess of our available insurance coverage, if any, and established reserves, or a requirement that we participate in a product recall, would have adverse effects (that could be material) on our business, results of operations and financial condition. Additionally, in the event that our products fail to perform as expected or such failure of our products results, our reputation may be damaged, which could make it more difficult for us to sell our products to existing and prospective customers and could adversely affect our business, results of operations and financial condition.

Since a defect or failure in our product could give rise to failures in the goods that incorporate them (and consequential claims for damages against our customers from their customers), we may face claims for damages that are disproportionate to the revenues and profits we receive from the products involved. In certain instances, we attempt to limit our liability through our standard terms and conditions of sale and other customer contracts. There is no assurance that such limitations will be effective.

New legal requirements, particularly with respect to health care reform, could increase the cost of our employee benefits and adversely affect our business, liquidity and results of operations.

We incur significant costs to maintain competitive employee benefits to attract and retain our highly skilled personnel. Changes to the regulatory environment with respect to these benefits could adversely affect our business, liquidity and results of operations. In particular, the health care reform legislation enacted by the U.S. Congress is intended to result in significant changes to the U.S. health care system. This legislation may lead to additional costs related to the implementation of the new healthcare regulations and may impair our ability to provide the same level of coverage.

We may be subject to disruptions or breaches of our secured network that could damage our reputation and harm our business and operating results.

We may be subject to disruptions or breaches of our secured network caused by computer viruses, illegal hacking, or acts of vandalism or terrorism. Additionally, the proprietary, sensitive or confidential information we manage and store may be subject to accidental loss, misuse, inadvertent disclosure or unapproved dissemination. Our security measures and/or those of our third party service providers may not detect or prevent such security breaches. In some cases, we may initially be unaware of an incident or its magnitude or effects. The costs to us to eliminate or alleviate cyber or other security problems, bugs, viruses, worms, malicious software programs and security vulnerabilities could be significant, and our efforts to address these problems may not be successful and could result in interruptions and delays that may impede our sales, manufacturing, distribution or other critical functions. We also provide certain confidential and proprietary information to our third party service providers and other business partners, and the systems of these third parties could be subject to security breaches or otherwise compromised. Any such compromise of our information security could result in the unauthorized publication of our confidential business or proprietary information or that of other parties with which we do business, cause an interruption in our operations, result in the unauthorized release of customer or employee data, result in a violation of privacy or other laws, expose us to a risk of litigation or damage our reputation, which could harm our business and operating results.

We may be subject to theft, loss, or misuse of personal data about our employees, customers, or other third parties, which could increase our expenses, damage our reputation, or result in legal or regulatory proceedings.

The theft, loss, or misuse of personal data collected, used, stored, or transferred by us to run our business could result in significantly increased security costs or costs related to defending legal claims. Global privacy legislation, enforcement, and policy activity in this area are rapidly expanding and creating a complex compliance regulatory environment. Costs to comply with and implement these privacy-related and data protection measures could be significant. In addition, our even inadvertent failure to comply with federal, state, or international privacy-related or data protection laws and regulations could result in proceedings against us by governmental entities or others.

We face risks related to sales through distributors and other third parties.

We sell a significant, and increasing, portion of our products through distributors. Using third parties for distribution exposes us to many risks, including competitive pressure, concentration, credit risk, and compliance risks. Distributors may sell products that compete with our products, and we may need to provide financial and other incentives to focus distributors on the sale of our products. We may rely on one or more key distributors for a product, and the loss of these distributors could reduce our revenue. Distributors may face financial difficulties, including bankruptcy, which could harm our collection of accounts receivable and financial results. Violations of the Foreign Corrupt Practices Act (FCPA) or similar laws by distributors or other third-party intermediaries could have a material impact on our business. Failure to manage risks related to our use of distributors may reduce sales, increase expenses, and weaken our competitive position.

Trends, Risks and Uncertainties Relating to Our Indebtedness

Our substantial debt could impair our financial condition and adversely affect our ability to operate our business.

DespiteIn the fact that we have recently retired some debt with existing cash flow,ordinary course of business, we have substantial debt service obligations. In addition,On May 1, 2015, we incurredamended our senior revolving credit facility to among other things, increase the borrowing capacity to $1.0 billion and on June 8, 2015, we issued $690.0 million aggregate principal amount of our 1.00% Notes. We incur debt to acquire Aptina and may incur additional debt in the future, subject to certain limitations contained in our debt instruments from time to time.time to repay or refinance other outstanding debt, to make acquisitions or for other purposes. See Note 20: “Recent Developments and Subsequent Events” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for a description of certain additional debt we may acquire in connection with our acquisition of Fairchild. The degree to which we are leveraged could have important consequences to our potential and current investors, including:

We may incur more debt and may require additional capital in the future to service this new debt, which could exacerbate the risks described above.

We may need to incur substantial additional indebtedness in the future.future, including in connection with our acquisition of Fairchild. See Note 20: “Recent Developments and Subsequent Events” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for a description of certain additional debt we may acquire in connection with our acquisition of Fairchild. The agreements relating to our outstanding indebtedness from time to time may limit us and our subsidiaries from incurring additional indebtedness. While we expect to have sufficient cash and cash equivalents for the next 12 months, if we incur additional debt, the related risks that we now face could intensify, and it is possible that we may need to raise additional capital to service this new debt and to fund our future activities. Moreover, the debt we may incur from time to time may require collateral to secure such indebtedness, which would place our assets at risk, as well as limit our flexibility

related to such assets. Ultimately, we may not be able to obtain additional funding on favorable terms, or at all, and we may need to curtail our operations significantly, reduce planned capital expenditures and research and development, or be forced to obtain funds through arrangements that management did not anticipate, including disposing of our assets and relinquishing rights to certain technologies or other activities that may impair our ability to remain competitive.

The agreements relating to our indebtedness may restrict our current and future operations, particularly our ability to respond to changes or to take some actions.

Our debt agreements from time to time may contain, and any future debt agreements may include, a number of restrictive covenants that impose significant operating and financial restrictions on, among other decisions we might make, our ability to:

Such agreements may also require us to satisfy other requirements, including to maintain certain financial ratios and condition tests. Our ability to meet these requirements can be affected by events beyond our control and we may be unable to meet them. These restrictions may limit our ability to engage in activities that could otherwise benefit us. Any future debt could contain financial and other covenants more restrictive than those that are currently applicable.

Our failure to comply with the agreements relating to our outstanding indebtedness, including as a result of events beyond our control, could result in an event of default that could materially and adversely affect our operating results and our financial condition.

If there were an event of default under any of the agreements relating to our outstanding indebtedness, the holders of the defaulted debt could cause all amounts outstanding with respect to that debt to be due and payable immediately, which default or acceleration of debt could cross default other indebtedness. We cannot assure you that our assets or cash flow would be sufficient to fully repay borrowings under our outstanding debt instruments, either upon maturity or if accelerated upon an event of default or, if we were required to repurchase any of our debt securities upon a change of control or other specified event, that we would be able to refinance or restructure the payments on those debt securities. Further, if we are unable to repay, refinance or restructure our indebtedness under our collateralized debt, the holders of such debt could proceed against the collateral securing that indebtedness.indebtedness, which could impact our operations. In addition, any event of default or declaration of acceleration under one debt instrument could also result in an event of default under one or more of our other debt instruments. A default under our committed credit facilities, including our senior revolving credit facility, could also limit our ability to make further borrowings under those facilities. As a result of these restrictions, we may be limited in how we conduct our business; unable to raise additional debt or equity financing to operate during general economic or business downturns; or unable to compete effectively or to take advantage of new business opportunities. These restrictions may also affect our ability to grow in accordance with our strategy.

We may not be able to generate sufficient cash flow to meet our debt service obligations.

Our ability to generate sufficient cash flow from operations to make scheduled payments on our debt obligations will depend on our future financial performance, which will be affected by a range of economic, competitive and business factors, many of which are outside of our control. If we do not generate sufficient cash flow from operations and proceeds from sales of assets in the ordinary course of business to satisfy our debt obligations, we may have to undertake alternative financing plans, such as refinancing or restructuring our debt, selling additional assets, reducing or delaying capital investments or seeking to raise additional capital. The terms of our financing agreements from time to time may contain limitations on our ability to incur additional indebtedness. We cannot assure you that any refinancing would be possible, that any assets could be sold, or, if sold, of the timing of the sales and the amount of proceeds realized from those sales, or that additional financing could be obtained on acceptable terms, if at all, or would be permitted under the terms of our various debt instruments then in effect. Our inability to generate sufficient cash flow to satisfy our debt obligations, or to refinance our obligations on commercially reasonable terms, would have an adverse effect on our business, financial condition and results of operations, as well as on our ability to satisfy our other debt obligations. In addition, to the extent we are not able to borrow or refinance debt obligations, we may have to issue additional shares of our common stock which would have a dilutive effect to thenthe current stockholders.

We conduct our operations through subsidiaries who may have no independent obligation to repay our debt.

We conduct our operations through our subsidiaries. Repayment of our indebtedness is dependent on the generation of cash flow by our subsidiaries and their ability to make such cash available to us, by dividend, debt repayment or otherwise. Unless they are guarantors of our indebtedness, our subsidiaries have no obligation to pay amounts due on such indebtedness or to make funds available for that purpose. Our subsidiaries may not be able to, or may not be permitted to, make distributions to enable us to make payments in respect of our indebtedness. Each subsidiary is a distinct legal entity, and, under certain circumstances, legal and contractual restrictions may limit our ability to obtain cash from our subsidiaries. In the event that we do not receive distributions or payments from our subsidiaries, we may be unable to make required principal and interest payments on our indebtedness.

Our variable rate indebtedness subjects us to interest rate risk, which could cause our debt service obligations to increase significantly.

Borrowings under certain of our facilities from time to time, including under our senior revolving credit facility, are at variable rates of interest and expose us to interest rate risk. If interest rates were to increase, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. In the future, we may enter into interest rate swaps that involve the exchange of floating for fixed rate interest payments in order to reduce interest rate volatility. However, we may not maintain interest rate swaps with respect to all of our variable rate indebtedness, and any swaps we enter into may not fully mitigate our interest rate risk.

Servicing the 1.00% Notes may require a significant amount of cash, and we may not have sufficient cash flow or the ability to raise the funds necessary to satisfy our obligations under the 1.00% Notes in a timely manner.

In June 2015, we issued $690.0 million aggregate principal amount of our 1.00% Notes. Holders of the 1.00% Notes will have the right to require us to repurchase all or a portion of their notes upon the occurrence of a

fundamental change (as defined under the indenture governing the 1.00% Notes) at a repurchase price equal to 100% of the principal amount of the 1.00% Notes, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date. In addition, upon conversion of the 1.00% Notes to be repurchased, unless we elect to deliver solely shares of our common stock to settle such conversion (other than paying cash in lieu of delivering any fractional shares), we will be required to make cash payments in respect of the 1.00% Notes being converted. Moreover, we will be required to repay the 1.00% Notes in cash at their maturity, unless earlier converted or repurchased. Servicing the 1.00% Notes may require a significant amount of cash, and we may not have sufficient cash flow or the ability to raise the funds necessary to satisfy our obligations under the 1.00% Notes. Our ability to make cash payments in connection with conversions of the 1.00% Notes, repurchase the 1.00% Notes in the event of a fundamental change or repay such notes at maturity will depend on market conditions and our future performance, which is subject to economic, financial, competitive and other factors beyond our control. If we are unable to make cash payments upon conversion of the 1.00% Notes, we would be required to issue significant amounts of our common stock, which would dilute existing stockholders. In addition, if we do not have sufficient cash to repurchase the 1.00% Notes following a fundamental change, we would be in default under the terms of the 1.00% Notes, which could cross default other debt and materially, adversely harm our business. The terms of the 1.00% Notes do not limit the amount of future indebtedness we may incur, and if we incur significantly more debt, this could intensify the risks described above. Our decision to use our cash for other purposes, such as to make acquisitions or to repurchase our common stock, could also intensify these risks. See Note 8: “Long-Term Debt” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information on our 1.00% Notes.

The conditional conversion feature of the 1.00% Notes, if triggered, may adversely affect our financial condition and operating results.

Prior to the close of business on the business day immediately preceding September 1, 2020, holders may convert the 1.00% Notes only if specified conditions are met. In the event the conditional conversion feature of the 1.00% Notes is triggered, holders of the 1.00% Notes will be entitled to convert the notes at any time during specified periods at their option. If one or more holders elect to convert their 1.00% Notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional share), we would be required to settle a portion or all of our conversion obligation through the payment of cash, which could adversely affect our liquidity. In addition, if the conditional conversion feature of the 1.00% Notes is triggered, even if holders do not elect to convert their 1.00% Notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the 1.00% Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital.

Note hedge and warrant transactions we have entered into may affect the value of the 1.00% Notes and our common stock.

Concurrently with the issuance of the 1.00% Notes, we entered into note hedge transactions with certain financial institutions, which we refer to as the option counterparties. The convertible note hedges are expected to reduce the potential dilution upon any conversion of the 1.00% Notes and/or offset any cash payments we are required to make in excess of the principal amount of converted 1.00% Notes, as the case may be. We also entered into warrant transactions with the option counterparties. However, the warrant transactions could separately have a dilutive effect to the extent that the market price per share of our common stock exceeds $25.96. See Note 9: “Earnings Per Share and Equity” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information.

In connection with establishing their initial hedge of the convertible note hedges and warrant transactions, the option counterparties or their respective affiliates have purchased shares of our common stock and/or entered into various derivative transactions with respect to our common stock following the pricing of the 1.00% Notes. In addition, the option counterparties or their respective affiliates may modify their hedge positions by entering into or unwinding various derivatives contracts with respect to our common stock and/or purchasing or selling our common stock or other securities of ours in secondary market transactions prior to the maturity of the 1.00% Notes (and are likely to do so during any observation period related to a conversion of 1.00% Notes or following any repurchase of the 1.00% Notes by us on any fundamental change repurchase date or otherwise). The potential effect, if any, of these transactions and activities on the market price of our common stock will depend in part on market conditions and cannot be ascertained at this time. Any of these activities could adversely affect the value of our common stock or the 1.00% Notes.

We are subject to counterparty risk with respect to the note hedge transactions.

The option counterparties are financial institutions or affiliates of financial institutions, and we will be subject to the risk that these option counterparties may default under the note hedge transactions. Our exposure to the credit risk of the option counterparties will not be secured by any collateral. If one or more of the option counterparties to one or more of our note hedge transactions becomes subject to insolvency proceedings, we will become an unsecured creditor in those proceedings with a claim equal to our exposure at the time under those transactions.

Our exposure will depend on many factors but, generally, the increase in our exposure will be correlated to the increase in the market price of our common stock and in the volatility of the market price of our common stock. In addition, upon a default by one of the option counterparties, we may suffer adverse tax consequences and dilution with respect to our common stock. We can provide no assurances as to the financial stability or viability of any of the option counterparties.

The fundamental change repurchase feature of our convertible notes may delay or prevent an otherwise beneficial attempt to take over our company.

The terms of our convertible notes require us to repurchase the notes in the event of a fundamental change. In certain circumstances, a takeover of our company could trigger an option of the holders of the notes to require us to repurchase the notes. This may have the effect of delaying or preventing a takeover of our company that would otherwise be beneficial to investors in the notes. A change of control may also trigger a default or other consequences under certain of our other indebtedness, including our senior revolving credit facility.

Conversion of Convertible Notesconvertible notes may dilute the ownership interest of existing shareholders, including holders who had previously converted their Convertible Notes,convertible notes, or may otherwise depress the price of our stock.

Under the terms of the 2.625% Notes, Series B, any conversions of the 2.625% Notes, Series B will be settled in cash up to the par value of the notes being converted, with the excess of the conversion value over the par value being settled in shares of common stock, subject to our ability to settle the entire amount in cash. It is our current intent to settle the per value in cash. Generally speaking, this would result in the issuance of common stock upon the conversion of the 2.625% Notes, Series B only if our common stock is trading at a value in excess of $10.50 per share and we do not elect to pay the entire amount in cash or are unable to do so. The conversion of some or all of the 2.625% Notes, Series B into common stock will dilute the ownership interests of our existing stockholders and may impact the value of our common stock. The 2.625% Notes, Series B will become fully convertible on June 15, 2016. Prior to that date, the 2.625% Notes, Series B will be convertible only upon the occurrence of certain extraordinary events. SeeWe may also elect

to settle the 1.00% Notes in common stock, cash or a combination thereof. For a description of the conversion features of the 1.00% Notes and for other information regarding our convertible notes, see Note 8: “Long Term“Long-Term Debt” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information.10-K. The dilutive effect of the 2.625% Notes, Series Bconvertible notes on the calculation of our earnings per share is described in Note 9: “Earnings Per Share and Equity” of the notes to our audited consolidated financial statements included elsewhere in this report.

Trends, Risks and Uncertainties Relating to Our Common Stock

Fluctuations in our quarterly operating results may cause our stock price to decline.

Given the nature of the markets in which we participate, we cannot reliably predict future revenues and profitability, and unexpected changes may impact the value of our common stock. A large portion of our costs are fixed, due in part to our significant sales, research and development and manufacturing costs. Thus, small declines in revenues could negatively affect our operating results in any given quarter. In addition to the other factors described above, factors that could affect our quarterly operating results include:

Our stock price may be volatile, which could result in substantial losses for investors in our securities.

The stock markets in general, and the markets for high technology stocks in particular, have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. These broad market fluctuations may adversely affect the trading price of our common stock.

The market price of the common stock may also fluctuate significantly in response to the following factors, among others, some of which are beyond our control:

The trading price of our common stock since our initial public offering has had significant variance and we cannot accurately predict every potential risk that may materially and adversely affect our stock price.

Provisions in our charter documents may delay or prevent the acquisition of our company, which could decrease the value of our stock.

Our certificate of incorporation and by-laws contain provisions that could make it harder for a third party to acquire us without the consent of our board of directors. These provisions:

Certain change in control restrictions in certain of our debt agreements may have similar effects. Although we believe these provisions make a higher third-party bid more likely by requiring potential acquirers to negotiate with our board of directors, these provisions apply even if an initial offer may be considered beneficial by some stockholders.

Item 1B.Unresolved Staff Comments

None.

Item 2.Properties

Our corporate headquarters as well as certain design center and research and development operations are located in approximately 1.4 million square feet of building space on property that we own in Phoenix, Arizona. We also lease properties around the world for use as sales offices, design centers, research and development labs, warehouses, logistic centers, trading offices and manufacturing support. The size and/or location of these properties change from time to time based on business requirements. We operate distribution centers, which are leased or contracted through a third party, in locations throughout Asia, Europe and the Americas. See Part I, Item 1 “Business—“Business - Manufacturing Operations” located elsewhere in this report for information on properties used in our manufacturing operations. While these facilities are primarily used in manufacturing operations, they also include office, utility, laboratory, warehouse and unused space. Additionally, we own research and development facilities located in Belgium, Canada, China, the Czech Republic, France, Germany, India, Ireland, Japan, Korea, Romania, the Slovak Republic, Switzerland, Taiwan and the United States. Our joint venture in Leshan, China also owns manufacturing, warehouse, laboratory, office and other unused space. We believe that our facilities around the world, whether owned or leased, are well maintained.

Certain of our properties are subject to encumbrances such as mortgages and liens. See Note 8: “Long-Term Debt” of the notes to our audited consolidated financial statements included elsewhere in this report for further information. In addition, due to local law restrictions, the land upon which our facilities are located in certain foreign locations is subject to varying long-term leases.

See Part I, Item 1 “Business—Manufacturing Operations” and “Sales, Marketing and Distribution” included elsewhere in this report for further details on our properties and “Business-Governmental Regulation” for further details on environmental regulation of our properties.

Item 3.Legal Proceedings

See Note 12: “Commitments and Contingencies” under the heading “Legal Matters” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for a description of legal proceedings and related matters.

Item 4.    4.    Mine Safety Disclosure

None.

PART II

Item 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is traded under the symbol “ONNN”“ON” on the NASDAQ Global Select Market. The following table sets forth the high and low sales prices for our common stock for the fiscal periods indicated as reported by the NASDAQ Global Select Market.

As of February 20, 2015,17, 2016, there were approximately 256239 holders of record of our common stock and 431,315,129412,095,180 shares of common stock outstanding.

We have neither declared nor paid any cash dividends on our common stock since our initial public offering. Our future dividend policy with respect to our common stock will depend upon our earnings, capital requirements, financial condition, debt restrictions and other factors deemed relevant by our Board of Directors. Our ability to pay dividends may also be limited by tax considerations, as described in Note 15: “Income Taxes” in the notes to our audited consolidated financial statements included elsewhere in this Form 10-K.

Our outstanding debt facilities may restrict our ability to pay dividends from time to time. Our senior revolving credit facility permits us to pay cash dividends to our common stockholders, if after giving effect thereto, the senior leverage ratio (calculated in accordance with the credit agreement) does not exceed 2.75 to 1.00. As of December 31, 2014,2015, we were within the required senior leverage ratio and therefore permitted to pay cash dividends under our senior revolving credit facility. See Note 8: “Long-Term Debt” of the notes to the audited consolidated financial statements included elsewhere in this Form 10-K for further discussion of our revolving credit facility.

Issuer Purchases of Equity Securities

Share Repurchase Program

The following table provides information regarding repurchases of our common stock during the three months ended December 31, 2014.2015. Also see Note 9: “Earnings perPer Share and Equity” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for additional information on this repurchase program.

Certain of the amounts in the above table may not total due to rounding of individual amounts.

(1)	These time periods represent our fiscal month start and end dates for the fourth quarter of 2014.

(1) These time periods represent our fiscal month start and end dates for the fourth quarter of 2015.

Under the 2012 Share Repurchase Program and the 2014 Share Repurchase Program, we may repurchase up to $1.0 billion (exclusive of fees, commissions and other expenses) of our common stock over a period of four years from December 1, 2014, subject to certain contingencies. We may repurchase our common stock from time to time in privately negotiated transactions or open market transactions, including pursuant to a trading plan in accordance with Rule 10b5-1 and Rule 10b-18 of the Exchange Act, or by any combination of such methods or other methods. The timing of any repurchases and the actual number of shares repurchased will depend on a variety of factors, including our stock price, corporate and regulatory requirements, restrictions under our debt obligations, other market and economic conditions. The 2012 Share Repurchase Program and 2014 Share Repurchase Program dodoes not require us to purchase any particular amount of common stock and areis subject to a variety of factors including the Board’s discretion. During the fourth quarter of 2014,2015, we repurchased approximately 8.01.9 million shares of common stock under the 2012 Share Repurchase Program and 2014 Share Repurchase Program for an aggregate purchase price of approximately $66.7$20.0 million, exclusive of fees, commissions and other expenses, at a weighted-average execution price per share of $8.31.$10.46. These repurchases were made in open market transactions, including pursuant to a trading plan in accordance with Rule 10b5-1 and Rule 10b-18 of the Exchange Act. At December 31, 2014,2015, approximately $976.0$628.2 million remained of the total authorized amount to purchase common stock pursuant to the 2014 Share Repurchase Program. This table does not include shares tendered to us to satisfy the exercise price in connection with cashless exercises of employee stock options or shares tendered to or withheld by us to satisfy tax withholding obligations in connection with the vesting of time and performance-based restricted stock units issued to employees. See Note 9: “Earnings Per Share and Equity” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for further information on the 2012 Share Repurchase Program and the 2014 Share Repurchase Program.

Convertible Note Repurchase, Redemption, Conversion or Exchange

See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the heading “Key Financing and Capital Events” and Note 8: “Long-Term Debt” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for a description of certain transactions with respect to our 2.625%1.00% Notes and our 2.625% Notes, Series B.

Equity Compensation Plan Table

Information concerning equity compensation plans is included in Part III, Item 12 “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters,” found elsewhere in this report.

Item 6.Selected Financial Data

The following table sets forth certain of our selected financial data for the periods indicated. The statement of operations and balance sheet data set forth below for the years ended and as of December 31, 2015, 2014, 2013, 2012 2011 and 20102011 are derived from our audited consolidated financial statements. The table below includes consolidated results, including our recent acquisitions, thus comparability will be materially affected. We also revised our previously-issued consolidated financial statements to reflect certain immaterial error corrections as fully described in Note 1: “Background and Basis of Presentation” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K.

You should read this information in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our audited consolidated financial statements, including the notes thereto, included elsewhere in this Form 10-K.

Operations and Comprehensive Income relating to certain reporting units in our Standard Products Group and System Solutions Group. For the year ended December 31, 2010, we recorded $16.1 million of goodwill and intangible asset impairment charges relating to our PulseCore acquisition on our Consolidated Statements of Operations and Comprehensive Income. See Note 5: “Goodwill and Intangible Assets” of the notes to our audited consolidated financial statements included elsewhere in thisForm 10-K for additional information on goodwill and intangible asset impairments.

Item 7.        Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion in conjunction with our audited historical consolidated financial statements, which are included elsewhere in this Form 10-K. Management’s Discussion and Analysis of Financial Condition and Results of Operations contains statements that are forward-looking. These statements are based on current expectations and assumptions that are subject to risk, uncertainties, and other factors. Actual results could differ materially because of the factors discussed in Part 1, Item 1A “Risk Factors” included elsewhere in this Form 10-K.

Executive Overview

This executive overview presents summarysummarized information regarding our industry, markets, business and operating trends only. For further information relating to the information summarized herein, see Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in its entirety.

Industry Overview

According to WSTS (an industry research firm), worldwide semiconductor industry sales were $335.2 billion in 2015, a decrease of approximately 0.2% from $335.8 billion in 2014, an increase of approximately 9.9% from $305.6 billion in 2013.2014. We participate in unit and revenue surveys and use data summarized by WSTS to evaluate overall semiconductor market trends and also to track our progress against the market in the areas we provide semiconductor components. The following table sets forth total worldwide semiconductor industry revenues and revenues in our Serviceable Addressable Market (“SAM”) since 2010:2011:

in Note 2: “Significant Accounting Policies—Policies - Revenue Recognition” in the notes to our audited consolidated financial statements contained elsewhere in this report. We believe the data provided by WSTS is reliable, but we have not independently verified it. WSTS periodically revises its information. We assume no obligation to update such information.

Worldwide semiconductor industry sales grew 31.8% in 2010, grew 0.4% in 2011, declined 2.6% in 2012, grew 4.8% in 2013, and grew 9.9% in 2014, and declined 0.2% in 2015 following a pattern associated with the financial crisis, subsequent recovery and persistent economic uncertainty. The increasedecrease of 9.9%0.2% from 20132014 to 20142015 is related to improvedthe challenging global macroeconomic conditions within the semiconductor industry affectingwhich continue to affect sales in all geographic regions.

Sales in our SAM increased to $110.2 billion in 2010, decreased to $107.4 billion in 2011, decreased to $103.7 billion in 2012, increased to $104.3 billion in 2013, and increased to $112 billion in 2014. The increase of approximately 7.4% from $104.3 billion in 2013 to $112$116.1 billion in 2014, and decreased to $115.9 billion in 2015. The decrease of approximately 0.2% from $116.1 billion in 2014 to $115.9 billion in 2015 is consistent with the trend in the worldwide semiconductor market. The most recently published estimates of WSTS project a compound annual growth rate in our SAM of approximately 3%4% for the next three years. These projections are not ours and may not be indicative of actual results.

Recent Results

Our total revenues for the year ended December 31, 20142015 were $3,161.8$3,495.8 million, an increase of approximately 14%11% from $2,782.7$3,161.8 million forfrom the year ended December 31, 2013.2014. The majority of the increase was attributable to our 2014 acquisitions of Aptina and Truesense, along with other increases in our Application Products Group and Standard Products Group,which experienced a full year of operations during 2015, partially offset by decreased revenue from our System Solutions Group. During 2014,2015, we reported net income attributable to ON Semiconductor Corporation of $189.7$206.2 million compared to net income attributable to ON Semiconductor Corporation of $150.4$189.7 million in 2013.2014. Our gross margin increaseddecreased by approximately 9020 basis points to 34.1% in 2015 from 34.3% in 2014, from 33.4% in 2013, primarily driven by changes in volume and mix across certain of our product lines.

During 2014, the majority of our restructuring and cost saving initiatives were focused on our System Solutions Group, which included certain voluntary retirement programs and the planned closure of our KSS facility.

For further information with respect to our restructuring activity, including our other restructuring and cost savings programs initiated during 2014, see Note 6: “Restructuring, Asset Impairments, and Other, net” of the notes to the audited consolidated financial statements located elsewhere in this report.

Business Overview

We are driving innovation in energy efficient electronics. Our extensive portfolio of analog, digital and mixed signal ICs, standard products, image sensors and custom devices helps customers efficiently solve their design challenges in advanced electronic systems and products. Our power management and motor driver semiconductor components control, convert, protect and monitor the supply of power to the different elements within a wide variety of electronic devices. Our custom ASICs use analog, DSP, mixed-signal and advanced logic capabilities to act as the brain behind many of our automotive, medical, military/aerospace,aerospace/defense, consumer and industrial customers’ products. Our signal management semiconductor components provide high-performance clock management and data flow management for precision computing, communications and industrial systems.

Our image sensors, optical image stabilization and auto focus devices provide advanced imaging solutions for automotive, wireless, industrial and consumer applications. Our standard semiconductor components serve as “building blocks” within virtually all types of electronic devices. These various products fall into the logic, analog, discrete, image sensors and memory categories used by the WSTS group.

Our new product development efforts continue to be focused on building solutions in product areas that appeal to customers in focused market segments and across multiple high growth applications. We collaborate with our customers to identify desired innovations in electronic systems in each end-market that we serve. This enables us to participate in the fastest growing sectors of the market. We also innovate in advanced packaging technologies to support ongoing size reduction in electronic systems and in advanced thermal packaging to support high performance power conversion applications. It is our practice to regularly re-evaluate our research and development spending, to assess the deployment of resources and to review the funding of high growth technologies. We deploy people and capital with the goal of maximizing our investment in research and development in order to position ourselves forfacilitate continued growth. We seek to maximize the investment of our people and capital in research and developmentgrowth by targeting innovative products and solutions for high growth

applications that position the companyus to outperform the industry. Our design expertise in analog, digital, mixed signal and imaging ICs, combined with our extensive portfolio of standard products enable the company to offer comprehensive, value added solutions to our global customers for their electronics systems.

On November 18, 2015, we entered into a definitive agreement and plan of merger under which, subject to the conditions set forth in the agreement and plan of merger, we will acquire Fairchild for $20.00 per share in an all cash transaction valued at approximately $2.4 billion. We believe the acquisition creates a leader in the power semiconductor market with combined revenue of approximately $5.0 billion, diversified across multiple markets with a strategic focus on automotive, industrial and smartphone end-markets. See Part I, Item 1 “Business - Recent Company Mergers and Acquisitions,” Part I, Item 1A “Risk Factors” and Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for additional information. See also Note 20: “Recent Developments and Subsequent Events” of the notes to our audited consolidated financial statements, included elsewhere in this Form 10-K for additional information.

Historically, the semiconductor industry has been highly cyclical. During a down cycle, unit demand and pricing have tended to fall in tandem, resulting in revenue declines. In response to such declines, manufacturers have reduced or shut down production capacity. When new applications or other factors have caused demand to strengthen, production volumes have historically stabilized and then grown again. As market unit demand reaches levels above capacity production capabilities, shortages begin to occur, which typically causes pricing power to swing back from customers to manufacturers, thus prompting further capacity expansion. Such expansion has typically resulted in overcapacity following a decrease in demand, which has triggered another similar cycle.

Business and Macroeconomic Environment Influence on Cost Savings and Restructuring Activities

We have recognized efficiencies from previously implemented restructuring activities and programs and continue to implement profitability enhancement programs to improve our cost structure. However, the semiconductor industry has traditionally been highly cyclical and has often experienced significant downturns in connection with, or in anticipation of, declines in general economic conditions. While there have been recent indications of improving conditions, our business environment continues to experience significant uncertainty and volatility. We have historically reviewed, and will continue to review, our cost structure, capital investments and other expenditures to align our spending and capacity with our current sales and manufacturing projections.

We have historically taken significant actions to align our overall cost structure with our expected revenue levels. Such actions continued in 2014 within our System Solutions Group.2015. See “Results of Operations” under the heading “Restructuring, Asset Impairmentsasset

impairments and Other, Net”other, net” below, along with Note 6: “Restructuring, Asset Impairments and Other, net”Net” of the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for further detailsinformation relating to our most recent cost saving actions.

Outlook

ON Semiconductor Q1 20152016 Outlook

Based upon product booking trends, backlog levels, and estimated turns levels, we estimate that our revenues will be approximately $840 million$800 to $880$840 million in the first quarter of 2015.2016. Backlog levels for the first quarter of 20152016 represent approximately 80% to 85% of our anticipated first quarter 20152016 revenues. We estimate average selling prices for the first quarter of 20152016 will be down approximately two percent2% compared to the fourth quarter of 2014.2015. For the first quarter of 2015,2016, we estimate that gross margin as a percentage of revenues will be approximately 33.4%31.8% to 35.4%33.8%. Our outlook does not include any contributions from the acquisition of Fairchild.

Results of Operations

Our results of operations for the year ended December 31, 20142015 include the results of operations offrom our acquisitions of Aptina, Truesense, and TruesenseAXSEM on August 15, 2014, and April 30, 2014, respectively.

Revision of Previously-Issued Financial Statements

During the quarter ended December 31, 2014, we revised our financial statements for 2013 and 2012 to record a deferred tax asset in a foreign subsidiary and have made adjustments in each successive period related to the foreign currency exchange rate changes associated with that item. The prior periods also include revised amounts from a change in application of an accounting convention, related to manufacturing variances, and other adjustments relating to hedging and inventory amounts. These other previously-identified errors were either uncorrected or corrected in a period subsequent to the period in which the error originated.July 15, 2015, respectively.

We assessed the effect of the above errors in the aggregate on prior periods’ financial statements in accordance with the SEC’s Staff Accounting Bulletins No. 99 and 108 and, based on an analysis of quantitative and qualitative factors, determined that the errors were not material to any of our prior interim and annual financial statements.

All financial information contained herein has been revised to reflect the correction of these errors. See Note 1: “Background and Basis of Presentation” of the notes to our audited consolidated financial statements included elsewhere in this report for additional information.

Operating Results

The following table summarizes certain information relating to our operating results that has been derived from our audited consolidated financial statements for the years ended December 31, 2015, 2014 2013 and 20122013 (in millions):