Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549
____________________
FORM 10-Q
 (Mark One)
[X]QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the quarterly period ended: December 31, 20172018
OR
[  ]TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ________________ to ________________

Commission File Number: 0-11412
 
AMTECH SYSTEMS, INC.
(Exact name of registrant as specified in its charter)

Arizona86-0411215
(State or other jurisdiction of(I.R.S. Employer
incorporation or organization)Identification No.)
  
131 South Clark Drive, Tempe, Arizona85281
(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: 480-967-5146
 
Indicate by a 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. [X] Yes [   ] 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). [ X  ] Yes [   ] No
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company,” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
 
Large accelerated filer [   ]Accelerated filer [X]
Non-accelerated filer [ ] (Do not check if a smaller reporting company)Smaller Reporting Company [   ][X]
 Emerging Growth Company [   ]
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) 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]

Shares of Common Stock outstanding as of February 2, 2018: 14,894,129January 25, 2019: 14,227,580

AMTECH SYSTEMS, INC. AND SUBSIDIARIES
TABLE OF CONTENTS
 
 Page
 
 
 
 

Cautionary Statement Regarding Forward-Looking Statements
Unless otherwise indicated, the terms “Amtech,” the “Company,” “we,” “us” and “our” refer to Amtech Systems, Inc. together with its subsidiaries.

Our discussion and analysis in this Quarterly Report on Form 10-Q, our Annual Report on Form 10-K, our other reports that we file with the Securities and Exchange Commission (the “SEC”), our press releases and in public statements of our officers and corporate spokespersons contain “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the Private Securities Litigation Reform Act of 1995. Forward-looking statements give our current expectations or forecasts of future events. You can identify these statements by the fact that they do not relate strictly to historical or current events. We have tried, wherever possible, to identify such statements by using words such as “may,” “plan,” “anticipate,” “seek,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe,” “continue,” “predict,” “potential,” “project,” “should,” “would,” “likely,” “future,” “target,” “forecast,” “goal,” “observe,” and “strategy” or the negative thereof or variations thereon or similar terminology. Some factors that could cause actual results to differ materially from those anticipated include, among others, future economic conditions, including changes in the markets in which we operate; difficulties in executing our Solar restructuring plan; changes in demand for our services and products; our ability to successfully complete and obtain additional turnkey orders and the associated costs and risks related thereto; difficulties in successfully executing our growth initiatives; the effects of semiconductor trends on our annual goodwill impairment analysis; the effects of competition in the markets in which we operate, including the adverse impact of competitive product announcements or new entrants into our markets and transfers of resources by competitors into our markets; control of costs and expenses; risks associated with new technologies and the impact on our business; legislative, regulatory, and competitive developments in markets in which we operate; possible future claims, litigation or enforcement actions and the results of any such claim, litigation proceeding, or enforcement action; and other circumstances and risks identified in this Quarterly Report or referenced from time to time in our filings with the SEC. These and many other factors could affect Amtech’s future operating results and financial condition, and could cause actual results to differ materially from expectations based on forward-looking statements made in this document or elsewhere by Amtech or on its behalf.

You should not place undue reliance on these forward-looking statements. We cannot guarantee that any forward-looking statement will be realized, although we believe that the expectations reflected in the forward-looking statements are reasonable as of the date of this Quarterly Report. Achievement of future results is subject to events out of our control, risks, uncertainties and potentially inaccurate assumptions. The Annual Report on Form 10-K that we filed with the SEC for the year-ended September 30, 2018 listed various important factors that could affect Amtech’s future operating results and financial condition and could cause actual results to differ materially from historical results and expectations based on forward-looking statements made in this document or elsewhere by Amtech or on its behalf. These factors can be found under the heading “Item 1A. Risk Factors” in the Annual Report on Form 10-K and investors should refer to them as well as the additional risk factors identified in this Quarterly Report. Because it is not possible to predict or identify all such factors, any such list cannot be considered a complete set of all potential risks or uncertainties.

The Company undertakes no obligation to update or publicly revise any forward-looking statement whether as a result of new information, future developments or otherwise. All subsequent written or oral forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by this paragraph. You are advised, however, to consult any further disclosures we make on related subjects in our subsequently filed Form 10-Q and Form 8-K reports and our other filings with the SEC. As noted above, we provide a cautionary discussion of risks, uncertainties and possibly inaccurate assumptions relevant to our business under “Item 1A. Risk Factors” of the Annual Report on Form 10-K. We note these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. You should understand it is not possible to predict or identify all such factors.

PART I. FINANCIAL INFORMATION
Item 1.Condensed Consolidated Financial Statements
AMTECH SYSTEMS, INC. AND SUBSIDIARIES
Condensed Consolidated Balance Sheets
(in thousands, except share data)
 December 31,
2017
 September 30,
2017
 December 31,
2018
 September 30,
2018
Assets (Unaudited)   (Unaudited)  
Current Assets        
Cash and cash equivalents $52,696
 $51,121
 $55,969
 $58,331
Restricted cash 9,913
 24,640
 5,009
 4,165
Accounts receivable        
Trade (less allowance for doubtful accounts of $1,473 and $866 at December 31, 2017, and September 30, 2017, respectively) 24,365
 22,519
Trade (less allowance for doubtful accounts of $1,358 and $1,407 at December 31, 2018, and September 30, 2018, respectively) 23,137
 20,475
Unbilled and other 21,620
 14,275
 
 12,749
Inventories 22,762
 30,210
 23,808
 24,710
Vendor deposits 5,180
 11,806
Other 2,310
 2,542
Contract assets 4,601
 
Other current assets 3,688
 3,860
Total current assets 138,846
 157,113
 116,212
 124,290
Property, Plant and Equipment - Net 15,637
 15,792
 16,148
 16,452
Intangible Assets - Net 3,378
 3,495
 1,066
 1,130
Goodwill - Net 11,484
 11,405
 6,633
 6,633
Investments 2,588
 2,615
Deferred Income Taxes - Long-Term 200
 200
Other Assets - Long-Term 980
 1,003
Other Assets 864
 901
Total Assets $173,113
 $191,623
 $140,923
 $149,406
Liabilities and Stockholders’ Equity    
    
Liabilities and Shareholders’ Equity    
Current Liabilities        
Accounts payable $20,483
 $21,555
 $11,828
 $11,374
Accrued compensation and related taxes 7,422
 7,592
 7,041
 7,394
Accrued warranty expense 1,401
 1,254
 944
 1,040
Other accrued liabilities 2,918
 2,056
 3,876
 4,239
Customer deposits 19,328
 48,784
Current maturities of long-term debt 365
 361
 378
 374
Deferred profit 5,632
 4,081
Contract liabilities 12,236
 18,369
Income taxes payable 1,608
 286
 2,913
 2,353
Total current liabilities 59,157
 85,969
 39,216
 45,143
Long-Term Debt 8,225
 8,134
 7,878
 7,960
Income Taxes Payable - Long-Term 6,802
 7,037
Income Taxes Payable 3,481
 3,213
Total Liabilities 74,184
 101,140
 50,575
 56,316
Commitments and Contingencies 
 
 
 
Stockholders’ Equity    
Shareholders’ Equity    
Preferred stock; 100,000,000 shares authorized; none issued 
 
 
 
Common stock; $0.01 par value; 100,000,000 shares authorized;
shares issued and outstanding: 14,876,430 and 14,710,591 at December 31, 2017 and September 30, 2017, respectively
 149
 147
Common stock; $0.01 par value; 100,000,000 shares authorized; shares issued and outstanding: 14,227,580 and 14,216,596 at December 31, 2018 and September 30, 2018, respectively 142
 142
Additional paid-in capital 127,015
 125,564
 124,522
 124,316
Accumulated other comprehensive loss (7,988) (8,529) (10,550) (9,974)
Retained deficit (20,247) (26,699) (23,766) (21,394)
Total stockholders’ equity 98,929
 90,483
Total Liabilities and Stockholders’ Equity $173,113
 $191,623
Total shareholders’ equity 90,348
 93,090
Total Liabilities and Shareholders’ Equity $140,923
 $149,406

The accompanying notes are an integral part of these condensed consolidated financial statements.

AMTECH SYSTEMS, INC. AND SUBSIDIARIES
Condensed Consolidated Statements of Operations
(Unaudited)
(in thousands, except per share data)
 
Three Months Ended December 31, Three Months Ended December 31,
2017 2016 2018 2017
Revenues, net of returns and allowances$73,611
 $29,135
 $29,453
 $73,611
Cost of sales53,274
 20,692
 20,328
 53,274
Gross profit20,337
 8,443
 9,125
 20,337
       
Selling, general and administrative10,580
 6,996
 8,221
 10,580
Research, development and engineering1,991
 1,627
 1,946
 1,991
Operating income (loss)7,766
 (180) 
Restructuring charges874
 
Operating (loss) income(1,916) 7,766
Loss from equity method investment(26) (143) 
 (26)
Interest expense and other income, net(48) 81
 
Income (loss) before income taxes7,692
 (242) 
Interest income (expense) and other income, net144
 (48)
(Loss) Income before income taxes(1,772) 7,692
Income tax provision1,240
 90
 600
 1,240
Net income (loss)6,452
 (332) 
Net (loss) income$(2,372) $6,452
       
Add: net loss attributable to noncontrolling interest
 279
 
Net income (loss) attributable to Amtech Systems, Inc.$6,452
 $(53) 
(Loss) Income Per Share:   
       
Income (Loss) Per Share:    
    
Basic income (loss) per share attributable to Amtech shareholders$0.44
 $(0.00) 
Basic (loss) income per share attributable to Amtech shareholders$(0.17) $0.44
Weighted average shares outstanding14,781
 13,179
 14,220
 14,781
Diluted income (loss) per share attributable to Amtech shareholders$0.42
 $(0.00) 
Diluted (loss) income per share attributable to Amtech shareholders$(0.17) $0.42
Weighted average shares outstanding15,298
 13,179
 14,220
 15,298

The accompanying notes are an integral part of these condensed consolidated financial statements.

AMTECH SYSTEMS, INC. AND SUBSIDIARIES
Condensed Consolidated Statements of Comprehensive Income (Loss)
(Unaudited)
(in thousands)

 Three Months Ended December 31, 
 2017 2016 
Net income (loss)$6,452
 $(332) 
Foreign currency translation adjustment541
 (941) 
Comprehensive income (loss)6,993
 (1,273) 
     
Comprehensive loss attributable to noncontrolling interest
 375
 
Comprehensive income (loss) attributable to Amtech Systems, Inc.$6,993
 $(898) 
 Three Months Ended December 31,
 2018 2017
Net (loss) income$(2,372) $6,452
Foreign currency translation adjustment(576) 541
Comprehensive (loss) income$(2,948) $6,993

The accompanying notes are an integral part of these condensed consolidated financial statements.


AMTECH SYSTEMS, INC. AND SUBSIDIARIES
Condensed Consolidated Statements of Shareholders’ Equity
(Unaudited)
(in thousands)

 Common Stock   
Accumulated Other Comprehensive
Income (Loss)
 
Retained
Earnings (Accumulated
 Deficit)
 Total Shareholders' Equity
 Shares Par Value 
Additional Paid-
In Capital
   
Balance at September 30, 201714,711
 $147
 $125,564
 $(8,529) $(26,699) $90,483
Net income
 
 
 
 6,452
 6,452
Translation adjustment
 
 
 541
 
 541
Stock compensation expense
 
 253
 
 
 253
Stock options exercised165
 2
 1,198
 
 
 1,200
Balance at December 31, 201714,876
 $149
 $127,015
 $(7,988) $(20,247) $98,929
            
            
Balance at September 30, 201814,217
 $142
 $124,316
 $(9,974) $(21,394) $93,090
Net loss
 
 
 
 (2,372) (2,372)
Translation adjustment
 
 
 (576) 
 (576)
Stock compensation expense
 
 169
 
 
 169
Stock options exercised11
 
 37
 
 
 37
Balance at December 31, 201814,228
 $142
 $124,522
 $(10,550) $(23,766) $90,348
            

The accompanying notes are an integral part of these condensed consolidated financial statements.


AMTECH SYSTEMS, INC. AND SUBSIDIARIES
Condensed Consolidated Statements of Cash Flows
(Unaudited)
(in thousands)
Three Months Ended December 31,Three Months Ended December 31,
2017 20162018 2017
Operating Activities      
Net income (loss)$6,452
 $(332)
Adjustments to reconcile net income (loss) to net
cash provided by (used in) operating activities:
   
Net (loss) income$(2,372) $6,452
Adjustments to reconcile net (loss) income to net cash used in operating activities:   
Depreciation and amortization471
 654
443
 471
Write-down of inventory41
 33
557
 41
Capitalized interest143
 190
106
 143
Deferred income taxes(7) 31
7
 (7)
Non-cash share based compensation expense253
 319
Non-cash share-based compensation expense169
 253
Loss from equity method investment26
 143

 26
Provision for (reversal of) allowance for doubtful accounts, net48
 (1,178)
Provision for allowance for doubtful accounts, net44
 48
Changes in operating assets and liabilities:      
Restricted cash14,885
 (2,425)
Accounts receivable(8,869) (3,600)(2,568) (8,869)
Inventories7,558
 1,621
228
 7,558
Contract and other assets7,939
 6,974
Accounts payable520
 (1,255)
Accrued income taxes1,087
 239
831
 1,087
Vendor deposits and other assets6,974
 725
Accounts payable(1,255) 78
Customer deposits and accrued liabilities(29,023) 584
Deferred profit1,479
 (619)
Net cash provided by (used in) operating activities263
 (3,537)
Accrued and other liabilities(684) 731
Contract liabilities(5,866) (28,275)
Net cash used in operating activities(646) (14,622)
Investing Activities      
Purchases of property, plant and equipment(93) (86)(152) (93)
Proceeds from sale of property, plant and equipment
 1
Net cash used in investing activities(93) (85)(152) (93)
Financing Activities      
Proceeds from the exercise of stock options1,199
 1
37
 1,199
Payments on long-term debt(89) (160)(95) (89)
Borrowings on long-term debt
 21
Net cash provided by (used in) financing activities1,110
 (138)
Effect of Exchange Rate Changes on Cash and Cash Equivalents295
 (257)
Net Increase (Decrease) in Cash and Cash Equivalents1,575
 (4,017)
Cash and Cash Equivalents, Beginning of Period51,121
 27,655
Cash and Cash Equivalents, End of Period$52,696
 $23,638
Net cash (used in) provided by financing activities(58) 1,110
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash(662) 453
Net Decrease in Cash, Cash Equivalents and Restricted Cash(1,518) (13,152)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period62,496
 75,761
Cash, Cash Equivalents and Restricted Cash, End of Period$60,978
 $62,609
      

The accompanying notes are an integral part of these condensed consolidated financial statements.

AMTECH SYSTEMS, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
THREE MONTHS ENDED DECEMBER 31, 20172018 AND 20162017
(UNAUDITED)
 
1. Basis of Presentation and Significant Accounting Policies
 
Nature of Operations and Basis of Presentation – Amtech Systems, Inc. (the “Company”, “Amtech”, “we”,“Company,” “Amtech,” “we,” “our” or “us”) is a leading, global manufacturer of capital equipment, including thermal processing siliconand wafer handling automation, and related consumables used in fabricating semiconductor devices, light-emitting diodes, or LEDs, silicon carbide (SiC) and silicon power chips and solar cells, LED and semiconductor devices.cells. We sell these products to semiconductor and solar cell and semiconductor manufacturers worldwide, particularly in Asia, the United States and Europe.

We serve niche markets in industries that are experiencing rapid technological advances and which historically have been very cyclical. Therefore, future profitability and growth depend on our ability to develop or acquire and market profitable new products and on our ability to adapt to cyclical trends.

The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), and consequently do not include all disclosures normally required by accounting principles generally accepted in the United States of America. In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements contain all adjustments necessary, all of which are of a normal and recurring nature, to present fairly our financial position, results of operations and cash flows. Certain information and note disclosures normally included in financial statements have been condensed or omitted pursuant to the rules and regulations of the SEC. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K as amended, for the fiscal year ended September 30, 2017.2018.

The consolidated results of operations for the three months ended December 31, 2017,2018, are not necessarily indicative of the results to be expected for the full fiscal year.

Principles of Consolidation – The consolidated financial statements include the accounts of the Company and our wholly-owned subsidiaries and subsidiaries in which we have a controlling interest. We report non-controlling interests in consolidated entities as a component of equity separate from our equity. The equity method of accounting is used for investments over which we have asubsidiaries. All significant influence but not a controlling financial interest. All material intercompany accountsbalances and transactions have been eliminated in consolidation. Effective July 1, 2017, we purchased the non-controlling interest in SoLayTec B.V. (“SoLayTec”), pursuant to which SoLayTec became a wholly-owned subsidiary of Amtech. Beginning July 1, 2017, the non-controlling interest will no longer be reported. Prior amounts have not been restated.

Use of Estimates – The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Revenue RecognitionReclassifications We review product and service sales contracts with multiple deliverables to determine if separate units of accounting are present. Where separate units of accounting exist, revenue allocated to delivered items is the lower of the relative selling price of the delivered items in the sales arrangement or the portion of the selling price that is not contingent upon performance of the service.

We recognize revenue when persuasive evidence of an arrangement exists; the product has been delivered and title has transferred, or servicesCertain reclassifications have been rendered; and the seller’s pricemade to prior year financial statements to conform to the buyer is fixed or determinable and collectability is reasonably assured. For us, this policy generally results in revenue recognition atcurrent year presentation. These reclassifications had no effect on the following points:
1.For our equipment business, transactions where legal title passes to the customer upon shipment, we recognize revenue upon shipment for those products where the customer’s defined specifications have been met with at least two similarly configured systems and processes for a comparably situated customer. Our selling prices may include both equipment and services, i.e., installation and start-up services performed by our service technicians. The equipment and services are multiple deliverables. Certain equipment that has a positive track record of successful installation and customer acceptance are considered to be routine systems. Our recognition of revenue upon delivery of such equipment that has been routinely installed and accepted is equal to the total selling price minus the relative selling price of the undelivered services.


Where the installation and acceptance of more than two similarly configured items of equipment have not become routine, recognition of revenue upon delivery of equipment is limited to the lesser of (i) the total selling price minus the relative selling price of the undelivered services or (ii) the non-contingent amount. Since we defer only those costs directly related to installation, or another unit of accounting not yet delivered, and the portion of the contract price is often considerably greater than the relative selling price of those items, our policy at times will result in deferral of profit that is disproportionate in relation to the deferred revenue. When this is the case, the gross margin recognized in one period will be lower and the gross marginpreviously reported in a subsequent period will improve.

2.For products where the customer’s defined specifications have not been met with at least two similarly configured systems and processes, the revenue and directly related costs are deferred at the time of shipment and later recognized at the time of customer acceptance or when this criterion has been met. We have, on occasion, experienced longer than expected delays in receiving cash from certain customers pending final installation or system acceptance. If some customers refuse to pay the final payment, or otherwise delay final acceptance or installation, the deferred revenue would not be recognized, adversely affecting future cash flows and operating results.

3.Sales of certain equipment, spare parts and consumables are recognized upon shipment, as there are no post shipment obligations other than standard warranties.

4.Service revenue is recognized upon performance of the services requested by the customer. Service contract revenue is recognized as services are performed over the term of the contract, which generally results in ratable recognition over the period of the contract.

Deferred Profit – Revenue deferred pursuant to our revenue policy, net of the related deferred costs, ifConsolidated Financial Statements for any is recorded as deferred profit in current liabilities. The components of deferred profit are as follows, in thousands:period.
 December 31,
2017
 September 30,
2017
Deferred revenues$8,370
 $6,822
Deferred costs2,738
 2,741
Deferred profit$5,632
 $4,081

Shipping Expense – Shipping expenses of $1.2$0.5 million and $0.4$1.2 million for the three months ended December 31, 20172018 and 2016,2017, respectively, are included in selling, general and administrative expenses.

Research, Development and Engineering Expense – The table below shows gross research and development expenses and grants earned, in thousands:
 
 Three Months Ended 
 December 31,
2017
 December 31,
2016
 
Research, development and engineering$2,290
 $1,830
 
Grants earned(299) (203) 
    Net research, development and engineering$1,991
 $1,627
 

Foreign Currency Transactions and Translation – We use the U.S. dollar as our reporting currency. Our operations in Europe, China and other countries are primarily conducted in their functional currencies, the Euro, Renminbi, or the local country currency, respectively. Accordingly, assets and liabilities of the foreign subsidiaries are translated into U.S. dollars at the exchange rate in effect at the balance sheet dates. Income and expense items are translated at the average exchange rate for each month within the year. The resulting translation adjustments are recorded directly in accumulated other comprehensive income (loss), net of tax - foreign currency translation adjustments as a separate component of stockholders’ equity. Net foreign currency transaction gains/losses, including transaction gains/losses on intercompany balances that are not of a long-term investment nature and non-functional currency cash balances, are reported as a separate component of non-operating (income) expense in our consolidated statements of operations.

 Three Months Ended December 31,
 2018 2017
Research, development and engineering$2,129
 $2,290
Grants earned(183) (299)
    Net research, development and engineering$1,946
 $1,991

Concentrations of Credit Risk – Our customers consist of solar cell and semiconductor manufacturers worldwide, as well as the lapping and polishing marketplace. Financial instruments that potentially subject us to significant concentrations of credit risk consist principally of cash and trade accounts receivable. Credit risk is managed by performing ongoing credit evaluations of the customers’ financial condition, by requiring significant deposits where appropriate, and by actively monitoring collections. Letters

of credit are required of certain customers depending on the size of the order, type of customer or its creditworthiness, and country of domicile.
 
As of December 31, 2017, two customers2018, one Semiconductor segment customer individually represented 36% and 12%16% of accounts receivable. As of September 30, 2017, two customers2018, one Solar segment customer individually represented 24% and 11%23% of accounts receivable.
 
We maintain our cash, cash equivalents and restricted cash in multiple financial institutions. Balances in the United States, which account for approximately 56%62% and 45%65% of total cash balances as of December 31, 20172018 and September 30, 2017,2018, respectively, are primarily invested in U.S. Treasuries or are in financial institutions insured by the Federal Deposit Insurance Corporation (“FDIC”). The remainder of our cash is maintained with financial institutions with reputable credit ratings in The Netherlands, France, China, the United Kingdom, Singapore and Malaysia. We maintain cash in bank accounts in amounts which at times may exceed federally insured limits. We have not experienced any losses on such accounts.

Refer to Note 910 to Condensed Consolidated Financial Statements for information regarding major customers, foreign sales and revenue in other countries subject to fluctuation in foreign currency exchange rates.

Impact of Recently Issued Accounting Pronouncements 

In March 2016, theSee Note 2 for information on our adoption of Financial Accounting Standards Board (the “FASB”(“FASB”) Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers (“ASC 606”), which amends the existing accounting standards for revenue recognition. The adoption of ASC 606 did not have a material effect on our results of operations.

In November 2016, the FASB issued Accounting StandardsStandard Update (“ASU”) 2016-09, “Compensation - Stock Compensation (Topic 718).” ASU 2016-09 identifies areas for simplification involving several aspects2016-18, “Statement of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows.Cash Flows: Restricted Cash.” The amendments address diversity in this ASU are effective for annual periods beginning after December 15, 2016 and for the interim periods therein. This new standard increases volatilitypractice that exists in the statementclassification and presentation of operations by requiring all excess tax benefitschanges in restricted cash and deficiencies to be recognized as discrete income tax benefits or expenses in the statement of operations in the period in which they occur. We adopted the new standard as of October 1, 2017, and prospectively applied the provisions in this guidance requiring recognition of excess tax benefits and deficits in the statement of operations. Also, asrequire that a result of the adoption of the new standard, we made an accounting policy election to recognize forfeitures as they occur and no longer estimate expected forfeitures. The provisions in this guidance requiring the use of a modified retrospective transition method would have required us to record a cumulative-effect adjustment in retained earnings as of October 1, 2017. On the basis of immateriality, we recorded such cumulative-effect adjustment as stock-based compensation in the first quarter of 2018 rather than adjusting retained earnings. Lastly, we applied the provisions of this guidance relating to classification on the statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. We adopted this standard retrospectively witheffective October 1, 2018, and, accordingly, to conform to the current period presentation, we reclassified our restricted cash to be included in the total of cash and cash equivalents presented at the bottom of our consolidated statements of cash flows for both the beginning and ending periods for our three months ended December 31, 2018 and 2017. As a result, the amount of the change in our net cash provided by operating activities no material effect on ourlonger separately shows the change in restricted cash flows.for either period.

The following table summarizes the effects related to the adoption of ASU 2016-18 for the three months ended December 31, 2017:

 December 31, 2017
 As reported As adjusted
Net cash provided by (used in) operating activities$263
 $(14,622)
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash$295
 $453
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash$1,575
 $(13,152)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period$51,121
 $75,761
Cash, Cash Equivalents and Restricted Cash, End of Period$52,696
 $62,609

There have been no other material changes or additions to the recently issued accounting standards asother than those previously reported in Note 1 to our Consolidated Financial Statements in Part II, Item 8 of our Annual Report on Form 10-K as amended, for the year ended September 30, 20172018 that affect or may affect our financial statements.

2. Contracts with Customers

We are a leading, global manufacturer of capital equipment, including thermal processing and wafer handling automation, and related consumables used in fabricating semiconductor devices, light-emitting diodes, or LEDs, silicon carbide (“SiC”) and silicon power chips and solar cells. We sell these products to semiconductor and solar cell manufacturers worldwide, particularly in Asia, the United States and Europe. We operate in three reportable business segments, based primarily on the industry they serve: (i) Semiconductor, (ii) Solar and (iii) Polishing. In our Semiconductor segment, we supply thermal processing equipment, including solder reflow ovens, diffusion furnaces, and customer high-temp belt furnaces for use by semiconductor and electronics assembly manufacturers. In our Polishing segment, we produce substrate consumables and machinery for lapping (fine abrading) and polishing of materials, such as silicon wafers for semiconductor products, sapphire wafers for LED applications, compound

substrates, like silicon carbide wafers, for power device applications. In our Solar segment, we supply thermal processing systems, including diffusion furnace, plasma-enhanced chemical vapor deposition (“PECVD”) system, atomic layer deposition (“ALD”) system, and related automation, to the photovoltaic solar industry.

Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration expected to be received in exchange for those goods or services. A performance obligation is a promise in a contract to transfer a product or service to the customer. The transaction price of a contract is allocated to each distinct performance obligation based upon the relative standalone selling price for each performance obligation and is recognized as revenue upon satisfaction of the performance obligation.

We implemented ASC 606 as of October 1, 2018 using the modified retrospective approach with no cumulative effect adjustment recorded to the opening balance of accumulated deficit. Prior period amounts have not been restated and continue to be reported under the accounting standards in effect for those periods. Upon adoption of ASC 606, we changed our accounting policy for the installation performance obligation included in all Solar segment system sales. Previously under ASC 605, we deferred revenue for the fair value of the installation and recognized it when earned. Under ASC 606, we will no longer record a deferral but will continue to recognize the revenue when earned. This change in policy does not result in a change in the amount of revenue recorded; instead, it removes the installation liability from our balance sheet.

To achieve the core principle of the standard, we apply the following five steps:

1) Identify the contract with the customer

A contract with a customer exists when (i) the Company enters into an enforceable contract with a customer that defines each party’s rights regarding the goods or services to be transferred and identifies the related payment terms, (ii) the contract has commercial substance, and (iii) the Company determines that collection of substantially all consideration for goods and services that are transferred is probable based on the customer’s intent and ability to pay the promised consideration.

2) Identify the performance obligations in the contract

Performance obligations promised in a contract are identified based on the goods and services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the good or service either on its own or together with other available resources, and are distinct in the context of the contract, whereby the transfer of the good or service is separately identifiable from other promises in the contract to the customer. To the extent a contract includes multiple promised goods and services, the Company must apply judgment to determine whether promised goods and services are capable of being distinct and distinct in the context of the contract. If these criteria are not met, the promised goods and services are accounted for as a combined performance obligation.

Our equipment sales consist of multiple performance obligations, including the system itself and obligations that are not delivered simultaneously with the system, primarily installation services. Customers who purchase new systems are provided an assurance-type warranty, generally for periods of 12 to 24 months. In accordance with ASC 606, assurance-type warranties are not considered a performance obligation.

3) Determine the transaction price

The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring goods and services to the customer. The transaction price for equipment sales is adjusted for estimated product returns that we expect to occur under our return policy based upon historical return rates, which have historically been immaterial. In rare cases when the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price utilizing either the expected value method or the most likely amount method depending on the nature of the variable consideration. Any estimates, including the effect of the constraint on variable consideration, are evaluated at each reporting period for any changes.

The transaction price for all transactions is based on the price reflected in the individual customer’s purchase order. Variable consideration has not been identified as a significant component of the transaction price for any of our transactions.

The Company has determined that most contracts will be completed in less than one year. For those transactions where all performance obligations will be satisfied within one year or less, the Company is applying the practical expedient outlined in ASC 606-10-32-18. This practical expedient allows the Company not to adjust promised consideration for the effects of a significant financing component if the Company expects at contract inception the period between when the Company transfers the promised

good or service to a customer and when the customer pays for that good or service will be one year or less. For those transactions that are expected to be completed after one year, the Company has assessed that there are no significant financing components because any difference between the promised consideration and the cash selling price of the good or service is for reasons other than the provision of financing.

4) Allocate the transaction price to performance obligations in the contract

If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple distinct performance obligations require an allocation of the transaction price to each distinct performance obligation on a relative standalone selling price basis unless the transaction price is variable and meets the criteria to be allocated entirely to each distinct performance obligation or to a distinct service that forms part of a single performance obligation.

Where required, the Company determines the standalone selling price (“SSP”) for each performance obligation based on consideration of both market and Company specific factors, including the selling price and profit margin for similar products.

For those contracts that contain multiple performance obligations (primarily system sales requiring installation services), the Company must determine the SSP. To determine the SSP for labor related performance obligations (such as the labor component of installation), the Company used directly observable inputs based on the standalone sale prices for these services. The Company used a cost plus margin approach in determining the SSP for any materials related performance obligations (e.g., system add-ons, spare parts, and systems).

5) Recognize revenue when or as the Company satisfied a performance obligation

The Company satisfies performance obligations either over time or at a point in time. Revenue is recognized over time if either 1) the customer simultaneously receives and consumes the benefits provided by the entity’s performance, 2) the entity’s performance creates or enhances an asset that the customer controls as the asset is created or enhanced, or 3) the entity’s performance does not create an asset with an alternative use to the entity and the entity has an enforceable right to payment for performance completed to date. If the entity does not satisfy a performance obligation over time, the related performance obligation is satisfied at a point in time by transferring the control of a promised good or service to a customer. Examples of control are using the asset to produce goods or services, enhance the value of other assets, settle liabilities, and holding or selling the asset. For over time recognition, ASC 606 requires the Company to select a single revenue recognition method for the performance obligation that faithfully depicts the Company’s performance in transferring control of the goods and services. The guidance allows entities to choose between two methods to measure progress toward complete satisfaction of a performance obligation:

Output methods - recognize revenue on the basis of direct measurements of the value to the customer of the goods or services transferred to date relative to the remaining goods or services promised under the contract (e.g., surveys of performance completed to date, appraisals of results achieved, milestones reached, time elapsed, and units of produced or units delivered); and

Input methods - recognize revenue on the basis of the entity’s efforts or inputs to the satisfaction of a performance obligation (e.g., resources consumed, labor hours expended, costs incurred, or time elapsed) relative to the total expected inputs to the satisfaction of that performance obligation.

Equipment and related product revenues (e.g., furnace systems, system add-ons, machinery, consumables and spare parts) are recognized at a point in time, when they are shipped or delivered, depending on contractual terms.

For installation services, revenue is recognized at a point in time, once the installation of the tool is complete. The nature of the installation services are such that the customer does not simultaneously receive and consume the benefits provided by the entity’s performance, nor does performance of installation services create or enhance an asset that the customer controls. Installation services do not create an asset with an alternative use to the entity, and the entity does not have an enforceable right to payment for performance completed to date.

Maintenance and service contracts are recognized over time. Progress in the satisfaction of these performance obligations will be measured using an input method of either time elapsed in the case of fixed period contracts, or labor hours expended, in the case of project-based contracts.

Cost to Obtain and Fulfill a Contract with a Customer

The Company recognizes an asset related to incremental costs of obtaining a contract with a customer if the Company expects to recover those costs. The Company will recognize an asset from costs incurred to fulfill a contract only if such costs relate directly to a contract that the entity can specifically identify, the costs generate or enhance resources of the Company that will be used in satisfying performance obligations in the future, and the costs are expected to be recovered. Any assets recognized related to costs to obtain or fulfill a contract are amortized to selling, general and administrative expense on a systematic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates.

In substantially all of our business transactions, we incur incremental costs to obtain contracts with customers, in the form of sales commissions. We maintain a commission program which awards our sales representatives for system sales and our employees for system sales and other individual goals. Under ASC 606, an asset shall be amortized on a systematic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates. However, ASC 606 provides a practical expedient to allow for the recognition of commission expense when incurred if the amortization period of the asset that the entity otherwise would have recognized is one year or less. Based on the nature of the Company’s contracts with customers, we have elected this practical expedient and will expense all commissions as incurred based upon the expectation that the amortization period would be one year or less.

Revenue Categories used by Management

Management reviews disaggregated revenue at the operating segment level. Revenue-generating transactions vary between our operating segments due to several factors. For example, installation for our Solar systems is a longer process due to the complexities of the chemicals and equipment involved. Additionally, lead times are longer in our Solar operating segment than in our Semiconductor or Polishing segments. Most of the revenue for our Polishing segment results from the sale of consumables, rather than equipment sales. These consumables have a much shorter production period than equipment produced by our other operating segments. Due to these variations between operating segments, management determined that disaggregated revenue by segment sufficiently depicts how economic factors affect the nature, amount, timing and uncertainty of our revenue and cash flows.

Contract assets and liabilities

Contract assets consist of amounts the Company is not legally able to invoice but has completed the related performance obligation. These amounts generally arise from variances between the contractual payment terms and the transaction price assigned to the open performance obligations (e.g., the Company has recognized revenue in an amount greater than the amount that is billable under the contract). Contract assets are reflected in current assets on the consolidated balance sheets.

Contract liabilities are reflected in current liabilities on the consolidated balance sheets as all performance obligations are expected to be satisfied within the next 12 months. Contract liabilities include customer deposits and deferred profit. Contract liabilities relate to payments invoiced or received in advance of completion of performance obligations under a contract. Contract liabilities are recognized as revenue upon the fulfillment of performance obligations. This amount relates primarily to prepayments for system sales and installation services.

Solar system transactions have payment terms that generally require a down payment (20%-30% of contract price), followed by a second payment due upon shipment of the system (40%-50% of contract price), with a final payment due upon acceptance of the installation (10%-20% of contract price). Semiconductor system transactions have payment terms that generally require a payment due upon shipment of the system (80%-90% of contract price) and a final payment due upon installation or acceptance.

The components of contract assets are as follows, in thousands:
 December 31,
2018
Unbilled accounts receivable$4,601
Contract assets$4,601

The components of contract liabilities are as follows, in thousands:
 December 31,
2018
 September 30,
2018
Customer deposits$11,065
 $15,298
Deferred revenues3,547
 5,616
Deferred costs(2,376) (2,545)
Contract liabilities$12,236
 $18,369

For the three months ended December 31, 2018, we recognized previously deferred gross profit of $0.5 million.

3. Restructuring
In July 2018, we established a restructuring plan related to our operations in the Netherlands, which are part of our Solar operating segment (the “Plan”). The goal of the Plan is to reduce operating costs and better align our workforce with the current needs of our solar business and enhance our competitive position for long-term success. Once fully implemented, we expect the Plan to reduce operating costs by approximately $3.0 million on an annualized basis. Under the Plan, we will reduce our Solar workforce by approximately 35-40 employees (approximately 20%). The affected employees are covered by a collective bargaining agreement, which defines the notice periods and amount due to employees in the event of involuntary termination.

The Company and its Chief Executive Officer and President, Fokko Pentinga, agreed on a transition of leadership, pursuant to which Mr. Pentinga stepped down as the Chief Executive Officer, President and a director of the Company effective December 6, 2018 (the “Effective Date”). In connection with his departure, Mr. Pentinga and the Company entered into a Separation Agreement and General Release of all Claims, dated November 28, 2018 (the “Separation Agreement”). Pursuant to the Separation Agreement, Mr. Pentinga will receive the following benefits:

a severance payment of $864,000 in gross, less all customary and appropriate income and employment taxes;
a payment of $458,500 for all other amounts due him;
all of his time-based stock options (the “Options”), became fully vested and immediately exercisable. Mr. Pentinga has the right to exercise Options with an exercise price of $7.01 or less until December 31, 2019. The remaining Options are exercisable during the 90-day period following the Effective Date; and
certain other benefits as set forth in the Separation Agreement.

The table below details the activity for three months ended December 31, 2018 related to the above restructuring actions and the outstanding obligations as of December 31, 2018, in thousands:

 Three Months Ended December 31, 2018
Balance at September 30, 2018$865
Severance expense, net of adjustments874
Cash payments(275)
Balance at December 31, 2018$1,464

4. Earnings Per Share
 
Basic earnings per share (“EPS”) is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS is computed similarly to basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding if potentially dilutive common shares had been issued. In the case of a net loss, diluted earnings per share is calculated in the same manner as basic EPS.
 
For the three months ended December 31, 20172018, and December 31, 2017, options for 1,198,000 and 120,000 weighted average shares, are excluded from the diluted EPS calculations because they are anti-dilutive. For the three months ended December 31, 2016, options for 1,886,000 weighted average sharesrespectively, were excluded from the diluted EPS calculations because they were anti-dilutive. These shares could bebecome dilutive in the future.

The following table outlinesA reconciliation of the denominators of the basic and diluted EPS incalculations follows (in thousands, except per share amounts:amounts):

 Three Months Ended December 31, 
 2017 2016 
Basic Income (Loss) Per Share Computation    
Net income (loss) attributable to Amtech Systems, Inc.$6,452
 $(53) 
Weighted Average Shares Outstanding:    
Common stock14,781
 13,179
 
Basic income (loss) per share attributable to Amtech shareholders$0.44
 $(0.00) 
Diluted Income (Loss) Per Share Computation    
Net income (loss) attributable to Amtech Systems, Inc.$6,452
 $(53) 
Weighted Average Shares Outstanding:    
Common stock14,781
 13,179
 
Common stock equivalents (1)517
 
 
Diluted shares15,298
 13,179
 
Diluted income (loss) per share attributable to Amtech shareholders$0.42
 $(0.00) 
 Three Months Ended December 31,
 2018 2017
Numerator:   
Net (loss) income attributable to Amtech Systems, Inc.$(2,372) $6,452
    
Denominator:   
Weighted-average shares used to compute basic EPS14,220
 14,781
Common stock equivalents (1)
 517
Weighted-average shares used to compute diluted EPS14,220
 15,298
    
Basic (loss) income per share attributable to Amtech shareholders$(0.17) $0.44
Diluted (loss) income per share attributable to Amtech shareholders$(0.17) $0.42

(1) The number of common stock equivalents is calculated using the treasury method and the average market price during the period.

3.5. Inventory
 
The components of inventories are as follows, in thousands:
 
December 31,
2017
 September 30,
2017
December 31,
2018
 September 30,
2018
Purchased parts and raw materials$13,628
 $14,789
$14,840
 $15,896
Work-in-process5,806
 11,078
6,311
 6,067
Finished goods3,328
 4,343
2,657
 2,747
$22,762
 $30,210
$23,808
 $24,710

4.6. Equity and Stock-Based Compensation
 
Stock-based compensation expense was $0.2 million and $0.3 million in both the three months ended December 31, 2018 and 2017, respectively, and 2016, and iswas included in selling, general and administrative expenses.


The following table summarizes our stock option activity during the three months ended December 31, 2017:2018:
 
Options 
Weighted
Average
Exercise
Price
Options Weighted Average Exercise Price
Outstanding at beginning of period1,560,441
 $7.95
1,248,758
 $7.69
Granted
 
154,850
 5.52
Exercised(165,839) 7.03
(10,984) 3.34
Forfeited(27,299) 20.04
(66,940) 9.75
Outstanding at end of period1,367,303
 $7.82
1,325,684
 $7.37
      
Exercisable at end of period1,142,012
 $8.06
1,095,001
 $7.73
Weighted average fair value of options
granted during the period
$
  $3.18
  


As a result of the Separation Agreement (see Note 3), vesting of 12,500 options was accelerated in the first quarter of 2019. Additionally, 122,500 options are subject to potential modification, if they are unexercised at the end of the 90-day period following the Effective Date. The modification will allow for an additional nine-month exercise period.

The fair value of options was estimated at the applicable grant date using the Black-Scholes option pricing model with the following assumptions:

Three Months Ended December 31, 2018
Risk free interest rate3%
Expected life6 years
Dividend rate0%
Volatility60%

On November 29, 2018, we announced that the Board of Directors of Amtech Systems, Inc. (the “Board”) approved a stock repurchase program, pursuant to which we may repurchase up to $4 million of our outstanding common stock, par value $0.01 per share, over a one-year period. Repurchases under the program will be made in open market transactions at prevailing market prices, in privately negotiated transactions, or by other means in compliance with the rules and regulations of the SEC; however, we have no obligation to repurchase shares and the timing, actual number, and value of shares to be repurchased is subject to management’s discretion and will depend on the Company’s stock price and other market conditions. Our Board may terminate the repurchase program at any time while it is in effect. We intend to retire any repurchased shares. There were no shares repurchased during the quarter ended December 31, 2018.

5.7. Income Taxes

For the three months ended December 31, 2018 and 2017, we recorded income tax expense of $0.6 million and $1.2 million, respectively. The quarterly income tax provision is calculated using an estimated annual effective tax rate, based upon expected annual income, permanent items, statutory rates and planned tax strategies in the various jurisdictions in which we operate. However, losses in certain jurisdictions and discrete items are treated separately.

Deferred tax assets and liabilities reflect the tax effects of temporary differences between the carrying value of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. We record a valuation allowance if, based on the weight of available evidence, it is more likely than not that some portion or all of a deferred tax asset will not be realized. Our expectations regarding realization of our deferred tax assets is based upon the weight of all available evidence, including such factors as our recent earnings history, expected future taxable income and available tax planning strategies. In prior periods, weWe established valuation allowances on substantially all net deferred tax assets, after considering all of the available objective evidence, both positive and negative, historical and prospective, with greater weight given to historical evidence, and determined it is not more likely than not that these assets will be realized.
The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017, and permanently reduces the U.S. federal corporate tax rate from 35% to 21%, eliminated corporate Alternative Minimum Tax, modified rules for expensing capital investment, and limits the deduction of interest expense for certain companies. The Act is a fundamental change to the taxation of multinational companies, including a shift from a system of worldwide taxation with some deferral elements to a territorial system, current taxation of certain foreign income, a minimum tax on low-tax foreign earnings, and new measures to curtail base erosion and promote U.S. production.
As a result of the Act, the statutory rate applicable to our fiscal year ending September 30, 2018 will be 24.5%, based on a fiscal year blended rate calculation. Accounting Standard Codification (“ASC”) 740 requires filers to record the effect of tax law changes in the period enacted. However, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118”), that permits filers to record provisional amounts during a measurement period ending no later than one year from the date of enactment. In the first quarter of fiscal 2018, we re-measured the applicable deferred tax assets based on the rates at which they are expected to reverse. We adjusted our gross deferred tax assets and liabilities and recorded a corresponding offset to our full valuation allowance against our net deferred tax assets, which resulted in minimal net effect to our provision for income taxes and effective tax rate. We have not made any other provisional adjustments as a result of the Act.
The Act includes a one-time mandatory repatriation transition tax on certain net accumulated earnings and profits of our foreign subsidiaries. We are still in the process of analyzing the earnings and profits and tax pools of our foreign subsidiaries to reasonably estimate the effects of the one-time transition tax and, therefore, have not recorded a provisional impact. The tax expense impact of the one-time transition tax to be determined may be partially or fully offset by a release of valuation allowance for the utilization of existing net operating losses and tax credits that may reduce the amount of related taxes payable. We expect the accounting for this aspect of the Act to be complete by the end of fiscal 2018. As of December 31, 2017, consistent with historical conclusions, our cash balances held in foreign locations are expected to be permanently reinvested outside the United States as the impact of the Act on our current position is not yet fully understood and is still under evaluation.
We are assessing the applicability of the other provisions in the Act and expect to complete this analysis by the end of fiscal 2018.

For the quarter ended December 31, 2017, we recorded income tax expense of $1.2 million. The difference in our effective tax rate from the U.S. statutory rate primarily reflects the impact of the mix of domestic and international pre-tax income and valuation allowance. In 2017 and the first quarter of 2018, we reversed a portion of the valuation allowance related to net operating loss carryforwards which we have determined will be utilized against net operating income in the current year.
We classify all of our uncertain tax positions as income taxes payable long-term. At both December 31, 20172018 and September 30, 2017,2018, the total amount of unrecognized tax benefits was approximately $4.3 million and $4.2 million, respectively.$1.2 million. Income taxes payable long-term includes other items, primarily withholding taxes that are not due until the related intercompany service fees are paid.

We classify interest and penalties related to unrecognized tax benefits as income tax expense. As of both December 31, 20172018 and September 30, 2017,2018, we had an accrual for potential interest and penalties of approximately $2.7$0.7 million and $2.6 million, respectively, classified with income taxes payable long-term.

Amtech and one or more of our subsidiaries file income tax returns in The Netherlands, Germany, France, China and other foreign jurisdictions, as well as in the U.S. and various states in the U.S. We have not signed any agreements with the Internal Revenue Service, any state or foreign jurisdiction to the extend the statute of limitations for any fiscal year. As such, the number of open years is the number of years dictated by statute in each of the respective taxing jurisdictions, which generally is from 3 to 5 years.

6.
8. Commitments and Contingencies
 
Purchase Obligations – As of December 31, 20172018, we had unrecorded purchase obligations in the amount of $26.4$16.0 million compared to $34.415.0 million as of September 30, 2017.2018. These purchase obligations consist of outstanding purchase orders for goods and services. While the amount represents purchase agreements, the actual amounts to be paid may be less in the event that any agreements are renegotiated, canceled or terminated.

Development ProjectsLegal Proceedings and Other ClaimsIn fiscal 2014, our wholly owned subsidiary, Tempress Systems, Inc. (“Tempress”), entered into an agreement with the Energy Research Centre of the Netherlands (“ECN”), a Netherlands government-sponsored research institute, for a joint research and development project. Under the terms of the agreement, Tempress sold an ion implanter (“Equipment”) to ECN for $1.4 million. Both Tempress and ECN are performing research and development projects utilizing the Equipment at the ECN facilities. Each party to the agreement will have 100% rights to the results of the projects developed separately by the individual parties. Any results co-developed will be jointly owned. Tempress met its requirement to contribute $1.4 million to the project in the form of installation of the Equipment, acceptance testing, project meeting attendance, training, parts, and service, including keeping the Equipment in good condition and repair for the first two years of the agreement prior to fiscal 2017.

EPA Accrual – As a result of the BTU International, Inc. (“BTU”) acquisition, we assumed BTU’s proportional responsibility for clean-up costs at a Superfund site. As an equipment manufacturer, BTU generated and disposed of small quantities of solid waste that were considered hazardous under Environment Protection Agency (“EPA”) regulations. Because BTU historically used a waste disposal firm that disposed of the solid waste at a site that the EPA designated as a Superfund site, BTU was named by the EPA as one of the entities responsible for a portion of the expected clean-up costs. Based on our proportional responsibility, as negotiated with and agreed to by the EPA, our liability related to this matter is less than $0.1 million, which is included in Other Accrued Liabilities in the Condensed Consolidated Balance Sheets as of December 31, 2017 and September 30, 2017. In accordance with the agreement, BTU established a letter of credit for $0.2 million to the benefit of the EPA for potential cash payments as settlements for our proportional liability, which is included in Restricted Cash in the Condensed Consolidated Balance Sheets as of December 31, 2017 and September 30, 2017.

Legal Proceedings – We are defendants fromFrom time to time, inwe are a party to claims and actions for matters arising out of our business operations. We regularly evaluate the status of the legal proceedings and other claims in which we are involved to assess whether a loss is probable or there is a reasonable possibility that a loss, or an additional loss, may have been incurred and determine if accruals are appropriate. If accruals are not appropriate, we further evaluate each legal proceeding to assess whether an estimate of possible loss or range of possible loss can be made for disclosure. Although the outcome of claims and litigation is inherently unpredictable, we believe that we have adequate provisions for any probable and estimable losses. It is possible, nevertheless, that our consolidated financial position, results of operations or liquidity could be materially and adversely affected in any particular period by the resolution of a claim or legal proceeding. Legal expenses related to defense, negotiations, settlements, rulings and advice of outside legal counsel are expensed as incurred.

In December 2018, we were notified by our customer that the turnkey contract for Phase II has been terminated. As a result, we will not perform the final installation and integration of our equipment. Final settlement of the contract is under review. We have removed the value of this remaining work from our backlog with no material effect on financial condition and results of operations.

Employment Contracts – We have employment contracts with, and severance plans covering, certain officers and management employees under which severance payments would become payable in the event of specified terminations without cause or terminations under certain circumstances after a change in control. If severance payments under the current employment agreementscontracts or plan paymentsseverance plans were to become payable, the severance payments would generally range from twelve to thirty-six months of salary.


7. Shareholder Rights Plan

In December 2008, Amtech and Computershare Trust Company, N.A., as Rights Agent (the “Rights Agent”), entered into an Amended and Restated Rights Agreement (the “Restated Rights Agreement”) which amended and restated the terms governing the previously authorized shareholder rights (each a “Right”) to purchase fractional shares of our Series A Participating Preferred Stock (“Series A Preferred”) currently attached to each of our outstanding shares of common stock, par value $0.01 per share. As amended, each Right entitles the registered holder to purchase from us one one-thousandth of a share of Series A Preferred at an exercise price of $51.60 (the “Exercise Price”), subject to adjustment. The Rights will expire 10 years after issuance and will be exercisable if (a) a person or group becomes the beneficial owner of 15% or more of our common stock or (b) a person or group commences a tender or exchange offer that would result in the offeror beneficially owning 15% or more of our common stock.  The Final Expiration Date (as defined in the Restated Rights Agreement) is December 14, 2018.

In October 2015, we entered into a Second Amended and Restated Rights Agreement (the “Second Restated Rights Agreement”) with the Rights Agent, which expands the definition of Exempted Person in the Restated Rights Agreement to include any person that our Board of Directors (the “Board”), in its sole and absolute discretion, exempts from becoming an Acquiring Person (as defined in the Restated Rights Agreement) under the Second Restated Rights Agreement. A person deemed an Exempted Person under the Second Restated Rights Agreement cannot trigger any of the Rights provided therein so long as such Exempted Person complies with the terms and conditions by which the Board approved such exemption from the Restated Rights Agreement.

As previously disclosed, in October 2015, we entered into a Letter Agreement (the “Agreement”) by and between Amtech and certain shareholders of Amtech who jointly file (the “Joint Filers”) under Section 13 of the Securities Exchange Act of 1934, as amended. One of the Joint Filers became a member of our Board after the Agreement was approved by the Board. The Agreement permits the Joint Filers, pursuant to the Second Restated Rights Agreement, to individually acquire shares of common stock of Amtech that would, in the aggregate, bring the Joint Filers’ collective ownership to no more than 19.9% of our issued and outstanding common stock at any time. In the event the Joint Filers’ collective ownership at any time exceeds 19.9% of our issued and outstanding shares of common stock, we are entitled to specific performance and all other remedies entitled to us at law or equity, among others. Our Board approved the Agreement and transactions contemplated thereunder, and has the sole authority to terminate the Agreement at any time.

8.9.Business Segment Information
 
Our three reportable segments are as follows:

Solar We are a leading supplier of thermal processing systems, including related automation, parts and services, to the solar/photovoltaic industry and also offer PECVD (plasma-enhanced chemical vapor deposition) equipment to the global solar market.

Semiconductor We design, manufacture, sell and service thermal processing equipment and related controls for use by leading semiconductor manufacturers, and in electronics, automotive and other industries.

Polishing We produce consumables and machinery for lapping (fine abrading) and polishing of materials, such as sapphire substrates, optical components, silicon wafers, numerous types of crystal materials, ceramics and metal components. We also refer to our Polishing segment as “SiC/LED.”


Information concerning our business segments is as follows, in thousands:
Three Months Ended December 31, Three Months Ended December 31,
2017 2016 2018 2017
Net Revenues:       
Solar *$49,197
 $11,424
 $7,510
 $49,197
Semiconductor20,891
 15,703
 18,960
 20,891
Polishing3,523
 2,008
 2,983
 3,523
$73,611
 $29,135
 $29,453
 $73,611
Operating income (loss):    
Operating (loss) income:   
Solar *$5,352
 $(1,023) $(2,804) $5,352
Semiconductor3,004
 2,361
 2,745
 3,004
Polishing1,104
 464
 769
 1,104
Non-segment related(1,694) (1,982) (2,626) (1,694)
$7,766
 $(180) $(1,916) $7,766

* The financial statement of business units included in the Solar segment include some sales of equipment and parts to the semiconductor, silicon wafer and MEMSmicroelectromechanical (“MEMS”) industries, comprising lessnot more than 25%half of the Solar segment revenue.

December 31,
2017
 September 30,
2017
December 31,
2018
 September 30,
2018
Identifiable Assets:      
Solar$76,794
 $97,999
$38,502
 $48,898
Semiconductor58,706
 57,177
62,036
 59,744
Polishing5,912
 5,078
7,178
 6,545
Non-segment related31,701
 31,369
Non-segment related*33,207
 34,219
$173,113
 $191,623
$140,923
 $149,406

*Non-segment related assets include cash, property and other assets.

Goodwill and other long-lived assets

We review our long-lived assets, including goodwill, for impairment at least annually in our fourth quarter or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Additional information on impairment testing of long-lived assets, intangible assets and goodwill can be found in NoteNotes 1 and 5 of our Annual Report on Form 10-K as amended, for the year ended September 30, 2017.2018.

9.10. Major Customers and Foreign Sales
 
During the three months ended December 31, 2017,2018, one Semiconductor segment customer individually represented 50%13% of our net revenues. No other customer represented greater than 10% of net revenues. During the three months ended December 31, 2016, there were no customers who2017, one Solar segment customer individually represented greater than 10%50% of our net revenues.
 
Our net revenues were to customers in the following geographic regions:
 
Three Months Ended December 31,Three Months Ended December 31,
2017 20162018 2017
United States7% 18%20% 7%
Other2% 2%2% 2%
Total North America9% 20%22% 9%
China71% 26%30% 71%
Malaysia3% 17%3% 3%
Taiwan2% 12%8% 2%
Other3% 6%7% 3%
Total Asia79% 61%48% 79%
Germany6% 5%17% 6%
Other6% 14%13% 6%
Total Europe12% 19%30% 12%
100% 100%100% 100%

Item 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and the related notes included in Item 1, “Condensed Consolidated Financial Statements” in Item 1 of this Quarterly Report on Form 10-Q (“Quarterly Report”) and our consolidated financial statements and related notes included in Item 8, “Financial Statements and Supplementary Data” in our Annual Report on Form 10-K as amended, for the fiscal year ended September 30, 2017.2018.
 
Cautionary Statement Regarding Forward-Looking StatementsOverview
 
Certain information containedWe are a leading, global manufacturer of capital equipment, including thermal processing and wafer handling automation, and related consumables used in fabricating semiconductor devices, light-emitting diodes, or incorporated by referenceLEDs, silicon carbide (“SiC”) and silicon power chips and solar cells. We sell these products to semiconductor and solar cell manufacturers worldwide, particularly in this Quarterly Report is forward-looking in nature. All statements included or incorporated by reference in this Quarterly Report or made by management of Amtech Systems, Inc. and its subsidiaries (the “Company” or “Amtech”), other than statements of historical fact, are hereby identified as “forward-looking statements” (as such term is defined in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended). The forward-looking statements in this Quarterly Report relate only to events or information as of the date on which the statements are made in this Quarterly Report. Examples of forward-looking statements include statements regarding Amtech’s future financial results, operating results, business strategies, projected costs, products under development, competitive positions and plans and objectives of the Company and its management for future operations. In some cases, forward-looking statements can be identified by terminology such as “may,” “will,” “should,” “would,” “expects,” “plans,” “anticipates,” “intends,” “believes,” “estimates,” “predicts,” “potential,” “continue,” or the negative of these terms or other comparable terminology. Some factors that could cause actual results to differ materially from those anticipated include, among others, future economic conditions, including changes in the markets in which we operate; changes in demand for our services and products; our ability to successfully complete the turnkey orders and the associated costs and risks related thereto; difficulties in successfully executing our growth initiatives; the effects of competition in the markets in which we operate, including the adverse impact of competitive product announcements or new entrants into our markets and transfers of resources by competitors into our markets; control of costs and expenses; risks associated with new technologies and the impact on our business; legislative, regulatory, and competitive developments in markets in which we operate; possible future claims, litigation or enforcement actions and the results of any such claim, litigation proceeding, or enforcement action; and other circumstances and risks identified in this Quarterly Report or referenced from time to time in our filings withAsia, the United States Securities and Exchange Commission. These and many other factors could affect Amtech’s future operating results and financial condition, and could cause actual results to differ materially from expectations based on forward-looking statements made in this document or elsewhere by Amtech or on its behalf.

You should not place undue reliance on these forward-looking statements. We cannot guarantee that any forward-looking statement will be realized, although we believe that the expectations reflected in the forward-looking statements are reasonable as of the date of this Quarterly Report. Achievement of future results is subject to events out of our control, risks, uncertainties and potentially inaccurate assumptions. The Annual Report on Form 10-K, as amended, that we filed with the Securities and Exchange Commission for the year-ended September 30, 2017 listed various important factors that could affect Amtech’s future operating results and financial condition and could cause actual results to differ materially from historical results and expectations based on forward-looking statements made in this document or elsewhere by Amtech or on its behalf. These factors can be found under the heading “Item 1A. Risk Factors” in the Annual Report on Form 10-K, as amended, and investors should refer to them as well as the additional risk factors identified in this Quarterly Report. Because it is not possible to predict or identify all such factors, any such list cannot be considered a complete set of all potential risks or uncertainties. Except as required by law, we undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events, or otherwise.

Introduction
Management’s Discussion and Analysis (“MD&A”) is intended to facilitate an understanding of our business and results of operations. MD&A consists of the following sections:
Overview 
Results of Operations
Liquidity and Capital Resources
Off-Balance Sheet Arrangements 
Contractual Obligations 
Critical Accounting Policies 
Impact of Recently Issued Accounting Pronouncements

Overview
Europe. We operate in three reportable business segments:segments, based primarily on the industry they serve: (i) Solar,Semiconductor, (ii) SemiconductorPolishing and (iii) Polishing. In our Solar segment, we are a leading global supplier of thermal processing systems, including diffusion, plasma-enhanced chemical vapor deposition (“PECVD”), atomic layer deposition (“ALD”), and related automation, parts and services, to the solar photovoltaic industry.Solar. In our Semiconductor segment, we supply thermal processing equipment, including solder reflow equipmentovens, diffusion furnaces, and related controls and diffusioncustomer high-temp belt furnaces for use by leading semiconductor manufacturers, and in electronics assembly for automotive and other industries.manufacturers. In our Polishing segment, we produce substrate consumables and machinery for lapping (fine abrading) and polishing of materials, such as sapphire substrates, optical components, silicon wafers numerous types of crystalline materials, ceramicsfor semiconductor products, sapphire wafers for LED applications, compound substrates, like silicon carbide wafers, for power device applications. In our Solar segment, we supply thermal processing systems, including diffusion furnace, plasma-enhanced chemical vapor deposition (“PECVD”) system, atomic layer deposition (“ALD”) system, and metal components.related automation, to the photovoltaic solar industry.

Our semiconductor customers are primarily manufacturers of integrated circuits, O-S-D (optoelectronic, sensors and discrete) components used in analog, power and radio frequency (RF) devices and photovoltaic solar cellscells. The semiconductor and integrated circuits. The solar cell and semiconductor industries are cyclical and historically have experienced significant fluctuations. Our revenue is impacted by these broad industry trends. TheAlthough semiconductor demand for our products may have reached its cyclical peak in our fiscal year ended September 30, 2018, we believe that continued technological advances and emerging industries, such as silicon carbide power devices, will sustain our long-term performance.

Since 2012, the solar cell industry has, at times, experienced asignificant structural imbalanceimbalances between supply and demand. This imbalance has increased competitive pressure on selling prices and negatively impacted our results of operations. Our high throughput equipment platforms, technologiesWe secured a large order for higher cell efficiency, greater knowledge of the complete cell manufacturing process and advanced automation have contributed significantly to our success in securing the large orders for the first two phases of a multi-phasesolar turnkey project announcedand delivered the equipment for both phases in Januaryfiscal 2017 and April2018. We achieved final acceptance for the first phase and have been waiting for end-customer readiness to begin installation of 2017the second phase. In December 2018, we were notified by our customer that the turnkey contract for Phase II has been terminated. As a result, we will not perform the final installation and integration of our equipment. Final settlement of the contract is under review. We have removed the value of this remaining work from a new solar cell manufacturer in China.our backlog and do not expect any future orders relating to this project or other turnkey projects. For equipment orders that are not part of turnkey projects,for other customer expansions, we compete with Chinese equipment manufacturers that offer lower prices, coupled with liberal payment terms. Weterms and have a more substantial local presence. As a result, we are finding it moreincreasingly difficult to participate in large capacity expansion opportunities in China. We believe we will need to continue to significantly restructure our Solar operations to achieve profitability. No assurance can be given as to the capacity expansionsoutcome or timing of those Chinese companiesany such further restructuring efforts, or that already have significant experience with all facetsany such efforts will result in any specific action. We are intensely reviewing available options to improve the solar business.

In July 2018, we established a restructuring plan related to our operations in the Netherlands, which are part of producing solar cellsour Solar operating segment (the “Plan”). The goal of the Plan is to reduce operating costs and at least some prior experience workingbetter align our workforce with the local equipment vendors. Whilecurrent needs of our solar business and enhance our competitive position for long-term success. Once fully implemented, we expect the Plan to reduce operating costs by approximately $3.0 million on an annualized basis. Under the Plan, we will continuereduce our Solar workforce by approximately 35-40 employees (approximately 20%). The affected employees are covered by a collective bargaining agreement, which defines the notice period and amount due to focus on developing advanced products and technologies, we plan to seek further cost reductions to address the competition from Chinese equipment vendors.

The equipment for the large follow-on turnkey order announced in April 2017 (“Phase II”) shippedemployees in the firstevent of involuntary termination. We recorded approximately $0.9 million of one-time termination costs in the fourth quarter of fiscal 2018. Our quarterly and annual operating results have been andIt is expected that these efforts will continue to be impactedcompleted by the timingend of large system orders. Further, the solar and semiconductor equipment industries are highly cyclical and the conditionsour third quarter of the industries we operate in are volatile. Therefore, our order flow fluctuates quarter to quarter. For additional information regarding the risks related to our business and industry, please refer to Item 1A. Risk Factors in our Annual Report on Form 10-K, as amended, for the fiscal year ended September 30, 2017.2019.


Results of Operations
 
The following table sets forth certain operational data as a percentage of net revenue for the periods indicated:
 
 Three Months Ended 
 December 31,
2017

December 31,
2016
 
Net revenue100 % 100 % 
Cost of sales72 % 71 % 
Gross margin28 % 29 % 
Selling, general and administrative14 % 24 % 
Research, development and engineering3 % 6 % 
Operating income (loss)11 % (1)% 
Gain on sale of other assets0 % 0 % 
Income (loss) from equity method investment0 % 0 % 
Interest expense and other income, net0 % 0 % 
Income (loss) before income taxes11 % (1)% 
Income taxes provision2 % 0 % 
Net income (loss)9 % (1)% 
Add: net loss attributable to noncontrolling interest0 % 1 % 
Net income (loss) attributable to Amtech Systems, Inc.9 % 0 % 
     

 Three Months Ended December 31,
 2018
2017
Net revenue100 % 100 %
Cost of sales69 % 72 %
Gross margin31 % 28 %
Selling, general and administrative28 % 14 %
Research, development and engineering7 % 3 %
Restructuring charges3 % 0 %
Operating (loss) income(7)% 11 %
Loss from equity method investment0 % 0 %
Interest expense and other income, net1 % 0 %
(Loss) Income before income taxes(6)% 11 %
Income tax provision2 % 2 %
Net (loss) income(8)% 9 %

Net Revenue
 
Net revenue consists of revenue recognized upon shipment or installation of equipment, with the exception of products using new technology, for which revenue is recognized upon customer acceptance. Spare parts sales are recognized upon shipment and service revenue is recognized upon completion of the service activity, which is generally ratable over the term of the service contract. Since the majority of our revenue is generated from large system sales, revenue and operating income can be significantly impacted by the timing of system shipments and recognition of revenue based on customersystem acceptances. The revenue of business units included in the Solar segment include some sales of equipment and parts to the semiconductor, silicon wafer and microelectromechanical (“MEMS”)MEMS industries, comprising lessnot more than 25%half of the Solar segment revenue.

Our net revenue by operating segment was as follows (dollars in thousands):
 
Three Months Ended December 31,   Three Months Ended December 31,   
Segment2017 2016 Incr (Decr) % Change 2018 2017 Incr (Decr) % Change
Solar$49,197
 $11,424
 $37,773
 331% $7,510
 $49,197
 $(41,687) (85)%
Semiconductor20,891
 15,703
 5,188
 33% 18,960
 20,891
 (1,931) (9)%
Polishing3,523
 2,008
 1,515
 75% 2,983
 3,523
 (540) (15)%
Total net revenue$73,611
 $29,135
 $44,476
 153% $29,453
 $73,611
 $(44,158) (60)%

NetTotal net revenue for the quarters ended December 31, 2018 and 2017 was $29.5 million and 2016 was $73.6 million, and $29.1 million, respectively, an increasea decrease of $44.5approximately $44.2 million or 153%60%. Revenue from the Solar segment increased 331%decreased 85% compared to the prior year quarter. This change is primarily a result of shipments of the equipment for Phase II of the turnkey order during the prior year quarter, compared to no turnkey revenue in the most recent quarter. We are operating in a challenging, competitive environment due to lower prices and liberal payment terms that are offered from Chinese equipment manufacturers. These competitive pricing pressures are making it increasingly difficult for us to participate in our customers’ solar expansions. The termination of the turnkey contract described in the Overview section above further reduces our confidence in the likelihood of a rebound of our Solar segment. Revenue from our Semiconductor segment decreased 9% compared to the prior year quarter due primarily to shipments relating to Phase II ofmarket demand peaking in fiscal 2018 and weakness in the turnkey order, previously announced in April 2017.China consumer market. Revenue from the SemiconductorPolishing segment increased 33%decreased 15% compared to the prior year quarter due primarily to strong customer demand for our thermal processing systemsmore machine sales and diffusion furnaces. Revenue from the Polishing segment increased 75% compared to the prior year quarter due primarily to strong customer demand leading to increasedhigher initial sales of polishing templates and equipment.a new template design in the first quarter of fiscal 2018.


Backlog and Orders

Our backlog, including deferred profit, as of December 31, 2018 and 2017 and 2016 was $65.9 million and $51.5 million, respectively, an increase of $14.4 million or 28%. Our backlog as of December 31, 2017 includes approximately $39.3 million of orders and deferred revenue from our Solar segment customers compared to $35.8 million at December 31, 2016. New orders bookedfollows (dollars in the quarter ended December 31, 2017 were $37.3 million ($7.3 million Solar) compared to $34.7 million ($15.9 million Solar) of customer orders in the quarter ended December 31, 2016. thousands):

 Three Months Ended December 31,    
Segment2018 2017 Incr (Decr) % Change
Solar$19,664
 $39,267
 $(19,603) (50)%
Semiconductor18,158
 23,720
 (5,562) (23)%
Polishing3,456
 2,864
 592
 21%
Total backlog$41,278
 $65,851
 $(24,573) (37)%

The backlog of business units included in the Solar segment include some sales of equipment and parts to the semiconductor, silicon wafer and MEMS industries, comprising lessnot more than 25%half of the Solar segment backlog.

New orders booked in the three months ended December 31, 2018 and 2017 were as follows (dollars in thousands):

 Three Months Ended December 31,    
Segment2018 2017 Incr (Decr) % Change
Solar$4,866
 $7,332
 $(2,466) (34)%
Semiconductor16,094
 25,292
 (9,198) (36)%
Polishing3,744
 4,701
 (957) (20)%
Total new orders$24,704
 $37,325
 $(12,621) (34)%


As of December 31, 2017, two customers2018, one customer individually accounted for 19% and17% of our backlog. No other customer accounted for more than 10% of our backlog.backlog as of December 31, 2018. The orders included in our backlog are generally credit approved customer purchase orders believed to be firm and are generally expected to ship within the next twelve months. Because our orders are typically subject to cancellation or delay by the customer, our backlog at any particular point in time is not necessarily representative of actual sales for succeeding periods, nor is backlog any assurance that we will realize profit from completing these orders. Our backlog also includes revenue deferred pursuant to our revenue recognition policy, derived from orders that have already been shipped, but which have not met the criteria for revenue recognition.
policy.

Gross Profit and Gross Margin
 
Gross profit is the difference between net revenue and cost of goods sold. Cost of goods sold consists of purchased material, labor and overhead to manufacture equipment and spare parts and the cost of service and support to customers for installation, warranty and paid service calls. Gross margin is gross profit as a percent of net revenue. Our gross profit and gross margin by operating segment were as follows (dollars in thousands):

Three Months Ended December 31, Three Months Ended December 31,
Segment2017 Gross Margin 2016 Gross Margin Incr (Decr) 2018 Gross Margin 2017 Gross Margin Incr (Decr)
Solar$11,313
 23% $1,611
 14% $9,702
 $411
 5% $11,313
 23% $(10,902)
Semiconductor7,488
 36% 6,095
 39% 1,393
 7,490
 40% 7,488
 36% 2
Polishing1,536
 44% 737
 37% 799
 1,224
 41% 1,536
 44% (312)
Total gross profit$20,337
 28% $8,443
 29% $11,894
 $9,125
 31% $20,337
 28% $(11,212)

Gross profit for the three months ended December 31, 2018 and 2017 was $9.1 million (31% of net revenue) and 2016 was $20.3 million (28% of net revenue) and $8.4 million (29% of net revenue), respectively, an increasea decrease of $11.9$11.2 million. Gross margin on products from our Solar segment decreased compared to the three months ended December 31, 2017, due primarily to lower sales volumes and write-downs of inventory. Gross margin on products from our Semiconductor segment increased compared to the three months ended December 31, 2016, 2017,

due primarily to a higher sales volumes of higher-margin products compared to the first quarter of fiscal 2017. Gross profit on products from our Semiconductor segment increased due to increased sales volume in the first quarter of 2018, with gross margin decreasing due to product mix. Gross profit and gross margin on products from our Polishing segment increaseddecreased from the prior year period, primarily due to higher salesproduct mix. For the three months ended December 31, 2018, we recognized previously deferred gross profit of new products with higher margins.$0.5 million. For the three months ended December 31, 2017, we deferred gross profit of $2.1 million. For the three months ended December 31, 2016, we recognized previously-deferred gross profit of $0.3 million.

Selling, General and Administrative
 
Selling, general and administrative expenses (“SG&A”) consists of the cost of employees, consultants and contractors, facility costs, sales commissions, shipping costs, promotional marketing expenses, legal and accounting expenses and bad debt expense.

SG&A expenses for the three months ended December 31, 2018 and 2017 and 2016 were $10.6$8.2 million and $7.0$10.6 million, respectively. SG&A increaseddecreased compared to the prior year quarter due primarily to $1.8 million of higherdecreased expenses in our Solar segment, including lower commissions and freight on lower sales, lower personnel and other sellingemployee-related expenses, and administrative expenses related to increased revenue. Also, for the three months ended December 31, 2016, SG&A expensesturnkey project that were reduced byincurred in the collectionsfirst quarter of previously reserved accounts receivablefiscal 2018.
Restructuring Charges
We recorded restructuring charges of approximately $1.0 million.$0.9 million in the first quarter of fiscal 2019. This amount is primarily severance expense related to the departure of our former Chief Executive Officer.

Research, Development and Engineering
 
Research, development and engineering (“RD&E”) expenses consist of the cost of employees, consultants and contractors who design, engineer and develop new products and processes as well as materials and supplies used in producing prototypes. We receive reimbursements through governmental research and development grants which are netted against these expenses when certain conditions have been met.
 
RD&E expense, net of grants earned, for the three months ended December 31, 2018 and 2017 were $1.9 million and 2016 were $2.0 million, and $1.6 million, respectively, an increasea decrease of $0.4 million, due primarily to increased R&D spending in our Solar segment.less than $100,000.

Income Taxes

For the three months ended December 31, 2018 and 2017, we recorded income tax expense of $0.6 million and $1.2 million, resulting in an effective tax rate of 16.1%. For the three months ended December 31, 2016 we recorded income tax expense of $0.1 million, a 37.5% effective tax rate.respectively. The income tax provisions are based upon estimates of annual income, annual permanent differences and statutory tax rates in the various jurisdictions in which we operate, except that certain loss jurisdictions and discrete items are treated separately.

Generally accepted accounting principles require that a valuation allowance be established when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including a company’s performance, the market environment in which the company operates and the length of carryback and carryforward periods. According to those principles, it is difficult to conclude that a valuation allowance is not needed when the negative evidence includes cumulative losses in recent years. Therefore, in the first quarter of fiscal 2017,2019, cumulative losses in the Solar segment weighed heavily in

the overall assessment. As a result of the review, where cumulative losses had been incurred, we continueit was determined that it was appropriate to maintain a full valuation allowance for substantially all net deferred tax assets in the U.S. and foreign jurisdictions includingin which the Solar segment has operations, and for the carryforwards of U.S. net operating losses and foreign tax credits, which were acquired in the merger with BTU International, Inc.for which there are limitations on their utilization. We continue to monitor our cumulative income and net operating losses in Europe.

For the quarter ending December 31, 2017, we determined that a portion of the deferred tax asset previously covered by the valuation allowance would be realizedloss positions in the current tax period. We realized $1.4 million ofU.S. and foreign jurisdictions to determine whether full valuation allowances on net deferred tax assets as a discrete item in the quarter.are appropriate.

Our future effective income tax rate depends on various factors, such as the amount of income (loss) in each tax jurisdiction, tax regulations governing each region, non-tax deductible expenses incurred as a percent of pre-tax income and the effectiveness of our tax planning strategies.


Liquidity and Capital Resources

At December 31, 2017The following table sets forth for the periods presented certain consolidated cash flow information (in thousands):

 Three Months Ended December 31,
 2018 2017
Net cash used in operating activities$(646) $(14,622)
Net cash used in investing activities(152) (93)
Net cash (used in) provided by financing activities(58) 1,110
Effect of exchange rate changes on cash(662) 453
Net decrease in cash, cash equivalents and restricted cash(1,518) (13,152)
Cash, cash equivalents and restricted cash, beginning of period62,496
 75,761
Cash, cash equivalents and restricted cash, end of period$60,978
 $62,609
    

Cash and September 30, 2017,Cash Flow

The decrease in cash, and cash equivalents were $52.7 million and $51.1 million, respectively, an increase of $1.6 million. Restricted cash decreased by $14.7 million to $9.9 million at December 31, 2017 from $24.6 million at September 30, 2017. Our working capital was $79.7 million as of December 31, 2017 and $71.1 million as of September 30, 2017.
The increase inrestricted cash during the first three months of fiscal 20182019 of $1.6$1.5 million was primarily due to proceeds fromcash used in operations and the exerciseeffect of stock options.exchange rates on our cash balances. We maintain a portion of our cash, and cash equivalents and restricted cash in Euros at our Dutch and French operations and in RMB in our Chinese operations; therefore, changes in the exchange rate have an impact on our cash balances. Restricted cash decreased primarily due to the shipmentsOur working capital was $77.0 million as of Phase IIDecember 31, 2018 and $79.1 million as of the Solar turnkey order, which released the restrictions on the downpayment.September 30, 2018. Our ratio of current assets to current liabilities was 2.3:3.0:1 as of December 31, 2017,2018, and 1.8:2.8:1 as of September 30, 2017.2018.

The success of our growth strategy is dependent upon the availability of additional capital resources on terms satisfactory to management. Our sources of capital in the past have included the sale of equity securities, which includes common stock sold in private transactions and public offerings, long-term debt and customer deposits. There can be no assurance that we can raise such additional capital resources on satisfactory terms. We believe that our principal sources of liquidity discussed above are sufficient to support operations for at least the next twelve months. We have never paid dividends on our common stock.

Cash Flows from Operating Activities
 
Cash provided byused in our operating activities was $0.3$0.6 million for the three months ended December 31, 2018, compared to $14.6 million for the three months ended December 31, 2017, compared to $3.5 million used in operations foran increase of $14.0 million. During the three months ended December 31, 2016, an improvement2018, $1.0 million was used in losses from operations adjusted for non-cash items, partially offset by $0.4 million of $3.8 million.cash provided by changes in operating assets and liabilities. During the three months ended December 31, 2017, cash was primarily generated through net income adjusted for non-cash items of $7.4 million which wasand increases in current liabilities, such as customer deposits and accounts payable. These increases were more than offset by other increases and decreasesan increase in operating assets, primarily relatedaccounts receivable due to the turnkey project. A significant portionhigh volumes of shipments during the revenuequarter and related cash payments relatedadvances made to the turnkey project are deferred and restricted, respectively, until completion of the integration of the equipment and transfer of the technology. Duringvendors. 

Cash Flows from Investing Activities
For the three months ended December 31, 2016,2018, cash used in investing activities was reduced by increases$0.2 million compared to $0.1 million in accounts receivable and restricted cash, offset by decreases in inventory. the prior year period.

Cash Flows from Financing Activities
 
For the three months ended December 31, 2018, $0.1 million of cash used in financing activities was comprised of approximately $37,000 of proceeds received from the exercise of stock options, fully offset by payments on long-term debt of $0.1 million. For the three months ended December 31, 2017, $1.1 million of cash provided by financing activities was primarily comprised of $1.2 million of proceeds received from the exercise of stock options, partially offset by payments on long-term debt of $0.1 million. For the three months ended December 31, 2016, $0.1 million of cash used in financing activities was primarily related to payments on long-term debt of $0.2 million net of borrowings of less than $0.1 million.


Off-Balance Sheet Arrangements
 
As of December 31, 2017,2018, we had no off-balance sheet arrangements as defined in Item 303(a)(4) of Regulation S-K promulgated by the Securities and Exchange CommissionSEC that have or are reasonably likely to have a current or future effect on financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that are material to investors.
 
Contractual Obligations
 
Unrecorded purchase obligations were $26.4$16.0 million as of December 31, 2017,2018, compared to $34.4$15.0 million as of September 30, 2017, a decrease2018, an increase of $8.0$1.0 million due primarily to reduced vendor commitments as we completeinventory builds related to expected shipments in the first two phases ofsecond quarter and a large capital expenditure in our Polishing segment.

There were no other material changes to the large solar project. Approximately $5.2 million of the December 31, 2017 and $11.8 million of the September 30, 2017 contractual obligations were prepaid asincluded in Part II, Item 7: “Management’s Discussion and Analysis of those dates in the formFinancial Condition and Results of advances to vendors.


Refer to Amtech’sOperations” of our Annual Report on Form 10-K as amended, for the year ended September 30, 2017 for additional information on our other contractual obligations.2018. 

Critical Accounting Policies
 
“Management’sPart I, Item 2: “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this Quarterly Report discusses our condensed consolidated financial statements that have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the condensed consolidated financial statements, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period.

On an ongoing basis, we evaluate our estimates and judgments, including those related to revenue recognition, inventory valuation, accounts and notes receivable collectability, warranty and impairment of long-lived assets. We base our estimates and judgments on historical experience and on various other factors that we believe to be reasonable under the circumstances. The results of these estimates and judgments form the basis for making conclusions about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
 
A critical accounting policy is one that is both important to the presentation of our financial position and results of operations, and requires management’s most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. These uncertainties are discussed in Part I, Item 1A of our Annual Report on Form 10-K as amended, for the year ended September 30, 2017.2018. We believe our critical accounting policies relate to the more significant judgments and estimates used in the preparation of our consolidated financial statements.
 
We believe the critical accounting policies discussed in the section entitled “Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Policies” in our Annual Report on Form 10-K as amended, for the fiscal year ended September 30, 20172018 represent the most significant judgments and estimates used in the preparation of our consolidated financial statements. ThereOther than the Revenue Recognition policy change disclosed in Note 2 hereto, there have been no significant changes in our critical accounting policies during the three months ended December 31, 2017.2018.
 
Impact of Recently Issued Accounting Pronouncements 

For discussion of the impact of recently issued accounting pronouncements, see “Part I, Item 1: Financial Information” under “Impact of Recently Issued Accounting Pronouncements.”

Item 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
There have been no material changesAs a smaller reporting company, as defined by Rule 12b-2 of the Exchange Act and in our reported market risks, as described in “QuantitativeItem 10(f)(1) of Regulation S-K, we are electing scaled disclosure reporting obligations and, Qualitative Disclosures About Market Risk” in Part II, Item 7A of our Annual Report on Form 10-K, as amended, fortherefore, are not required to provide the year ended September 30, 2017.information requested by this Item.


Item 4.CONTROLS AND PROCEDURES
 
Disclosure Controls and Procedures
 
Our management, including theour Chief Executive Officer (“CEO”) and theour Chief Financial Officer (“CFO”), has carried out an evaluation of the effectiveness of our disclosure controls and procedures as of December 31, 2017,2018, pursuant to Exchange Act Rules 13a-15(e) and 15(d)-15(e). Disclosure controls and procedures means controls and other procedures that are designed to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’sSEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to management, including the principal executive and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. Based upon that evaluation, our CEO and CFO have concluded that as of such date, our disclosure controls and procedures in place were effective.
 
Changes in Internal Control Over Financial Reporting
 
There were nohave not been any changes in Amtech’sthe Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended December 31, 2017first fiscal quarter to which this report relates that has materially affected, or isare reasonably likely to materially affect, itsthe internal control over financial reporting.reporting of the Company.



PART II. OTHER INFORMATION
 
Item 1.Legal Proceedings
 
For discussion of legal proceedings, see Note 8 to our consolidated financial statements under “Part I, Item 1: Financial Information” under “Commitments and Contingencies.”Contingencies” of this Quarterly Report.

Item 1A.Risk Factors
 
In addition to the other information set forth in this Quarterly Report, you should carefully consider the factors discussed in Part I, Item 1A “Risk Factors” of our Annual Report on Form 10-K, as amended, for the fiscal year ended September 30, 2017. There have been no material changes to the risk factors as previously disclosed in the section entitled “Risk Factors” of our Form 10-K as amended, for the fiscal year ended September 30, 2017, other than as described in the Overview above, and the supplemental risk factor set forth below:2018.
Recent changes to U.S. tax laws may adversely affect our financial condition or results of operation and create the risk that we may need to adjust our accounting for these changes.
The Tax Cuts and Jobs Act (the “Act”), enacted on December 22, 2017, makes significant changes to U.S. tax laws and includes numerous provisions that affect businesses, including ours. For instance, as a result of lower corporate tax rates, the Act tends to reduce both the value of deferred tax assets and the amount of deferred tax liabilities. It also limits interest rate deductions and the amount of net operating losses that can be used each year and alters the expensing of capital expenditures. Other provisions have international tax consequences for businesses like ours that operate internationally. The Act is unclear in certain respects and will require interpretations and implementing regulations by the Internal Revenue Service, as well as state tax authorities, and the Act could be subject to amendments and technical corrections, any of which could lessen or increase the adverse (and positive) impacts of the Act. The accounting treatment of these tax law changes is complex, and some of the changes may affect both current and future periods. Others will primarily affect future periods. As discussed elsewhere in this Quarterly Report on Form 10-Q, we believe our analysis and computations of the tax effects of the Act on us is partially, but not entirely, complete. For instance, we are still in the process of analyzing the earnings and profits and tax pools of our foreign subsidiaries to estimate the effects of the one-time repatriation transaction tax on certain net accumulated earnings and profits of our foreign subsidiaries. Consistent with guidance from the Securities and Exchange Commission, our financial statements reflect our estimates of the tax effects of the Act on us as of December 31, 2017, to the extent we have been able to make such preliminary determinations. Although we believe these estimates are reasonable, they are provisional and may be adjusted prior to the end of fiscal 2018. We intend to complete accounting for the Act by the end of fiscal 2018. Any adjustments to our provisional estimates or the effects of currently unknown impacts of the Act on us could affect our current or future financial statements, or both.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds
 
None.Issuer Purchases of Equity Securities

On November 29, 2018, we announced that our Board approved a stock repurchase program, pursuant to which we may repurchase up to $4 million of our outstanding common stock, par value $0.01 per share, over a one-year period, commencing immediately. Repurchases under the program will be made in open market transactions at prevailing market prices, in privately negotiated transactions, or by other means in compliance with the rules and regulations of the SEC; however, we have no obligation to repurchase shares and the timing, actual number, and value of shares to be repurchased is subject to management’s discretion and will depend on the Company’s stock price and other market conditions. We may, in the sole discretion of the Board, terminate the repurchase program at any time while it is in effect. We intend to retire any repurchased shares.

During the three months ended December 31, 2018, we did not repurchase any of our equity securities nor did we sell any equity securities that were not registered under the Securities Act of 1933, as amended.

Item 3.Defaults Upon Senior Securities
 
None.

Item 4.Mine Safety Disclosures
 
Not applicable.

Item 5.Other Information
 
None.


Item 6.        Exhibits
EXHIBIT INCORPORATED BY REFERENCEFILED
NO.EXHIBIT DESCRIPTIONFORMFILE NO.EXHIBIT NO.FILING DATEHEREWITH
X
X
    X
    X
    X
    X
101.INS XBRL Instance Document    X
101.SCH XBRL Taxonomy Extension Schema Document    X
101.PRE Taxonomy Presentation Linkbase Document    X
101.CAL XBRL Taxonomy Calculation Linkbase Document    X
101.LAB XBRL Taxonomy Label Linkbase Document    X
101.DEF XBRL Taxonomy Extension Definition Linkbase Document    X




SIGNATURES 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
    AMTECH SYSTEMS, INC.
 
By/s/ Lisa D. Gibbs Dated: February 8, 20187, 2019
 Lisa D. Gibbs   
 Vice President – Chief Accounting Officer   
 (Principal Accounting Officer and Duly Authorized Officer)   


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