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Segments and Geographic Information (Tables)

12 Months Ended

Dec. 30, 2023

Segment Reporting [Abstract]

Operating Results by Reportable Segments

The following table summarizes the operating results by reportable segment (dollars in thousands):

			Fiscal 2023
			Probe Cards						Systems						Corporate and Other						Total
Revenues			$	497,903					$	165,199					$	—					$	663,102
Gross profit			185,392						84,735						(11,547)						258,580
Gross margin			37.2		%				51.3		%										39.0		%

			Fiscal 2022
			Probe Cards						Systems						Corporate and Other						Total
Revenues			$	591,422					$	156,515					$	—					$	747,937
Gross profit			235,562						80,937						(20,490)						296,009
Gross margin			39.8		%				51.7		%										39.6		%

			Fiscal 2021
			Probe Cards						Systems						Corporate and Other						Total
Revenues			$	633,281					$	136,393					$	—					$	769,674
Gross profit			279,873						65,834						(22,940)						322,767
Gross margin			44.2		%				48.3		%										41.9		%

Summary of Revenue by Geographic Region

The following table summarizes revenue, by geographic region, as a percentage of total revenues based upon ship-to location:

			Fiscal Year Ended
			December 30, 2023						December 31, 2022						December 25, 2021
United States			25.9		%				17.1		%				15.9		%
Taiwan			22.3						22.7						24.2
South Korea			17.8						14.9						16.0
China			13.8						21.5						21.2
Europe			5.9						5.2						5.7
Japan			5.5						5.1						4.7
Malaysia			4.0						6.7						6.4
Singapore			2.8						5.3						4.7
Rest of World			2.0						1.5						1.2
Total Revenues			100.0		%				100.0		%				100.0		%

Summary of Revenue by Market

The following table summarizes revenue by market (in thousands):

			Fiscal Year Ended
			December 30, 2023						December 31, 2022						December 25, 2021
Foundry & Logic			$	363,539					$	409,196					$	435,812
DRAM			113,779						133,446						156,049
Flash			20,585						48,780						41,420
Systems			165,199						156,515						136,393
Total revenues			$	663,102					$	747,937					$	769,674

Summary of Revenue by Timing of Recognition

The following table summarizes revenue by timing of revenue recognition (in thousands):

			Fiscal Year Ended
			December 30, 2023																		December 31, 2022																		December 25, 2021
			Probe Cards						Systems						Total						Probe Cards						Systems						Total						Probe Cards						Systems						Total
Products transferred at a point in time			$	494,624					$	155,145					$	649,769					$	587,738					$	144,456					$	732,194					$	630,038					$	124,788					$	754,826
Services transferred over time			3,279						10,054						13,333						3,684						12,059						15,743						3,243						11,605						14,848
Total			$	497,903					$	165,199					$	663,102					$	591,422					$	156,515					$	747,937					$	633,281					$	136,393					$	769,674

Long-lived Assets by Location

Long-lived assets, comprised of Operating lease, Right-of-use assets, Property, plant and equipment, net, Goodwill and Intangibles, net, reported based on the location of the asset was as follows (in thousands):

			December 30, 2023						December 31, 2022						December 25, 2021
United States			$	414,607					$	406,529					$	372,338
Europe			23,204						42,640						47,700
Asia-Pacific			11,135						10,236						10,368
Total			$	448,946					$	459,405					$	430,406

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