Segment Reporting and Geographic Information

6 Months Ended

Jun. 26, 2021

Segment Reporting [Abstract]

Segment Reporting and Geographic Information

NOTE 15. Segment Reporting and Geographic Information

The Company is engaged in the design, development, manufacture and support of high-performance control metrology, defect inspection, lithography and data analysis systems used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment: the design, development, manufacture and support of high-performance process control defect inspection and metrology, lithography and process control software systems used by microelectronics device manufacturers. Therefore, the Company has one reportable segment. The Company’s chief operating decision maker is the Chief Executive Officer (the “CEO”). The CEO allocates resources and assesses performance of the business and other activities at the reportable segment level.

The following table lists the different sources of revenue:

	Three Months Ended								Six Months Ended
	June 26,				June 27,				June 26,				June 27,
	2021				2020				2021				2020
Systems and software	$	162,898	84	%	$	108,247	80	%	$	304,407	84	%	$	222,577	81	%
Parts		18,697	10	%		16,329	12	%		36,115	10	%		29,904	11	%
Services		11,792	6	%		10,372	8	%		22,144	6	%		22,395	8	%
Total revenue	$	193,387	100	%	$	134,948	100	%	$	362,666	100	%	$	274,876	100	%

The Company’s significant operations outside the United States include sales, service and application offices in Asia and Europe.  For geographical revenue reporting, revenue is attributed to the geographic location to which the product is shipped.  Revenue by geographic region is as follows:

	Three Months Ended				Six Months Ended
	June 26,		June 27,		June 26,		June 27,
	2021		2020		2021		2020
Revenue from third parties:
South Korea	$	41,299	$	22,964	$	91,828	$	43,721
Taiwan		48,501		31,997		84,793		67,178
China		42,274		27,001		68,053		58,384
United States		25,700		22,378		51,180		42,026
Europe		14,446		10,089		31,832		25,158
Japan		17,386		13,908		25,251		28,935
Southeast Asia		3,781		6,611		9,729		9,474
Total revenue	$	193,387	$	134,948	$	362,666	$	274,876

The following customers accounted for 10% or more of total revenue for the indicated periods:

	Six Months Ended
	June 26,			June 27,
	2021			2020
Samsung Semiconductor		22	%		18	%
Taiwan Semiconductor Manufacturing Co. Ltd.		16	%		17	%