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Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 29, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill by Reportable Segments
Goodwill by reportable segment was as follows (in thousands):
Probe CardsSystemsTotal
Goodwill, as of December 30, 2023$178,424 $22,666 $201,090 
Reduction - China divestiture(1,055)(62)(1,117)
Foreign currency translation— (802)(802)
Goodwill, as of December 28, 2024
177,369 21,802 199,171 
Foreign currency translation— 529 529 
Goodwill, as of March 29, 2025
$177,369 $22,331 $199,700 
Schedule of Intangible Assets
Intangible assets were as follows (in thousands):
March 29, 2025December 28, 2024
Intangible Assets GrossAccumulated
Amortization		NetGrossAccumulated
Amortization		Net
Existing developed technologies $159,778 $150,531 $9,247 $159,360 $149,631 $9,729 
Trade name7,784 7,759 25 7,736 7,700 36 
Customer relationships47,956 47,547 409 47,831 47,241 590 
$215,518 $205,837 $9,681 $214,927 $204,572 $10,355 
Schedule of Amortization Expense
Amortization expense was included in our Condensed Consolidated Statements of Income as follows (in thousands):
 Three Months Ended
 March 29,
2025		March 30,
2024
Cost of revenues$483 $449 
Selling, general and administrative191 191 
$674 $640 
Schedule of Estimated Amortization of Intangible Assets
The estimated future amortization of definite-lived intangible assets, excluding in-process research and development, is as follows (in thousands):
Fiscal YearAmount
Remainder of 2025
$1,790 
20261,763 
20271,741 
20281,630 
20291,630 
Thereafter1,127 
$9,681