Cover
Cover | Mar. 31, 2021 |
Cover [Abstract] | |
Document Type | 8-K/A |
Amendment Flag | true |
Amendment Description | On April 5, 2021, Ultra Clean Holdings, Inc. (“Ultra Clean”) filed a Form 8-K (the “Prior 8-K”) to report the completion, on March 31, 2021, of its acquisition of Ham-Let (Israel-Canada) Ltd. (“Ham-Let”). This Form 8-K/A is being filed to amend Item 9.01 of the Prior 8-K to provide the financial statements and pro forma financial information described under Item 9.01 below that were not included in the Prior 8-K. |
Document Period End Date | Mar. 31, 2021 |
Entity File Number | 000-50646 |
Entity Registrant Name | ULTRA CLEAN HOLDINGS, INC. |
Entity Central Index Key | 0001275014 |
Entity Tax Identification Number | 61-1430858 |
Entity Incorporation, State or Country Code | DE |
Entity Address, Address Line One | 26462 CORPORATE AVENUE |
Entity Address, City or Town | HAYWARD |
Entity Address, State or Province | CA |
Entity Address, Postal Zip Code | 94545 |
City Area Code | 510 |
Local Phone Number | 576-4400 |
Written Communications | false |
Soliciting Material | false |
Pre-commencement Tender Offer | false |
Pre-commencement Issuer Tender Offer | false |
Title of 12(b) Security | Common stock, par value $0.001 per share |
Trading Symbol | UCTT |
Security Exchange Name | NASDAQ |
Entity Emerging Growth Company | false |