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Segments and Geographic Information (Tables)

12 Months Ended

Dec. 25, 2021

Segment Reporting [Abstract]

Operating Results by Reportable Segments

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

			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		%

			Fiscal 2020
			Probe Cards						Systems						Corporate and Other						Total
Revenues			$	581,739					$	111,877					$	—					$	693,616
Gross profit			263,215						51,835						(27,130)						287,920
Gross margin			45.2		%				46.3		%				—		%				41.5		%

			Fiscal 2019
			Probe Cards						Systems						Corporate and Other						Total
Revenues			$	491,363					$	98,101					$	—					$	589,464
Gross profit			211,382						50,927						(24,813)						237,496
Gross margin			43.0		%				51.9		%				—		%				40.3		%

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 25, 2021						December 26, 2020						December 28, 2019
Taiwan			24.2		%				21.7		%				14.7		%
China			21.2						25.2						18.0
South Korea			16.0						12.5						19.8
United States			15.9						18.4						26.3
Asia-Pacific (1)			11.5						4.8						3.7
Europe			5.7						9.5						7.0
Japan			4.7						6.3						8.9
Rest of World			0.8						1.6						1.6
Total Revenues			100.0		%				100.0		%				100.0		%

(1)Asia-Pacific includes all countries in the region except Taiwan, South Korea, China, and Japan, which are disclosed separately.

Summary of Revenue by Market

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

			Fiscal Year Ended
			December 25, 2021						December 26, 2020						December 28, 2019
Foundry & Logic			$	435,812					$	446,183					$	318,552
DRAM			156,049						109,734						147,257
Flash			41,420						25,822						25,554
Systems			136,393						111,877						98,101
Total revenues			$	769,674					$	693,616					$	589,464

Summary of Revenue by Timing of Recognition

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

			Fiscal Year Ended
			December 25, 2021																		December 26, 2020																		December 28, 2019
			Probe Cards						Systems						Total						Probe Cards						Systems						Total						Probe Cards						Systems						Total
Products transferred at a point in time			$	630,038					$	124,788					$	754,826					$	579,569					$	104,858					$	684,427					$	488,925					$	93,837					$	582,762
Services transferred over time			3,243						11,605						14,848						2,170						7,019						9,189						2,438						4,264						6,702
Total			$	633,281					$	136,393					$	769,674					$	581,739					$	111,877					$	693,616					$	491,363					$	98,101					$	589,464

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 25, 2021						December 26, 2020						December 28, 2019
United States			$	372,338					$	347,654					$	287,600
Europe			47,700						51,791						52,309
Asia-Pacific			10,368						7,322						7,064
Total			$	430,406					$	406,767					$	346,973

X

- Definition

Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets.

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