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Operating Segments and Enterprise-Wide Information (Tables)

9 Months Ended

Sep. 25, 2021

Segment Reporting [Abstract]

Schedule of Operating Results by Segment

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

			Three Months Ended
			September 25, 2021																								September 26, 2020
			Probe Cards						Systems						Corporate and Other						Total						Probe Cards						Systems						Corporate and Other						Total
Revenues			$	154,850					$	35,114					$	—					$	189,964					$	150,773					$	27,223					$	—					$	177,996
Gross profit			$	69,868					$	17,553					$	(7,202)					$	80,219					$	69,641					$	13,565					$	(6,457)					$	76,749
Gross margin			45.1		%				50.0		%										42.2		%				46.2		%				49.8		%										43.1		%
			Nine Months Ended
			September 25, 2021																								September 26, 2020
			Probe Cards						Systems						Corporate and Other						Total						Probe Cards						Systems						Corporate and Other						Total
Revenues			$	467,389					$	97,287					$	—					$	564,676					$	419,272					$	77,301					$	—					$	496,573
Gross profit			$	206,783					$	48,059					$	(21,634)					$	233,208					$	191,907					$	37,618					$	(19,219)					$	210,306
Gross margin			44.2		%				49.4		%										41.3		%				45.8		%				48.7		%										42.4		%

Schedule of Disaggregation of Revenue by Segment

Certain revenue category information by reportable segment was as follows (in thousands):

			Three Months Ended
			September 25, 2021																		September 26, 2020
			Probe Cards						Systems						Total						Probe Cards						Systems						Total
Market:
Foundry & Logic			$	104,640					$	—					$	104,640					$	108,411					$	—					$	108,411
DRAM			39,816						—						39,816						31,379						—						31,379
Flash			10,394						—						10,394						10,983						—						10,983
Systems			—						35,114						35,114						—						27,223						27,223
Total			$	154,850					$	35,114					$	189,964					$	150,773					$	27,223					$	177,996
Timing of revenue recognition:
Products transferred at a point in time			$	154,217					$	33,564					$	187,781					$	150,252					$	25,987					$	176,239
Products and services transferred over time			633						1,550						2,183						521						1,236						1,757
Total			$	154,850					$	35,114					$	189,964					$	150,773					$	27,223					$	177,996
Geographical region:
China			$	46,011					$	5,036					$	51,047					$	24,851					$	3,695					$	28,546
Taiwan			34,100						7,474						41,574						33,351						3,584						36,935
South Korea			27,895						1,077						28,972						28,337						1,234						29,571
United States			18,530						6,938						25,468						31,596						4,732						36,328
Asia-Pacific1			18,566						1,315						19,881						5,505						3,449						8,954
Japan			5,767						4,961						10,728						12,288						4,857						17,145
Europe			3,595						6,891						10,486						11,679						5,300						16,979
Rest of the world			386						1,422						1,808						3,166						372						3,538
Total			$	154,850					$	35,114					$	189,964					$	150,773					$	27,223					$	177,996

			Nine Months Ended
			September 25, 2021																		September 26, 2020
			Probe Cards						Systems						Total						Probe Cards						Systems						Total
Market:
Foundry & Logic			$	321,776					$	—					$	321,776					$	323,503					$	—					$	323,503
DRAM			115,802						—						115,802						75,127						—						75,127
Flash			29,811						—						29,811						20,642						—						20,642
Systems			—						97,287						97,287						—						77,301						77,301
Total			$	467,389					$	97,287					$	564,676					$	419,272					$	77,301					$	496,573
Timing of revenue recognition:
Products transferred at a point in time			$	465,822					$	89,119					$	554,941					$	417,529					$	73,393					$	490,922
Products and services transferred over time			1,567						8,168						9,735						1,743						3,908						5,651
Total			$	467,389					$	97,287					$	564,676					$	419,272					$	77,301					$	496,573
Geographical region:
Taiwan			$	125,571					$	13,467					$	139,038					$	93,596					$	8,290					$	101,886
China			107,838						17,661						125,499						107,756						13,190						120,946
United States			64,012						23,592						87,604						79,575						16,790						96,365
South Korea			81,322						2,912						84,234						56,278						2,494						58,772
Asia-Pacific1			59,013						4,114						63,127						14,307						9,010						23,317
Europe			12,894						19,601						32,495						36,656						15,498						52,154
Japan			14,493						13,260						27,753						24,502						11,072						35,574
Rest of the world			2,246						2,680						4,926						6,602						957						7,559
Total			$	467,389					$	97,287					$	564,676					$	419,272					$	77,301					$	496,573

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

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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