Segment Reporting and Geographic Information

12 Months Ended

Jan. 01, 2022

Segment Reporting [Abstract]

Segment Reporting and Geographic Information

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:

	Year Ended
	January 1, 2022				December 26, 2020				December 31, 2019
Systems and software	$	669,114	85	%	$	450,459	80	%	$	255,723	84	%
Parts		72,753	9	%		65,444	12	%		34,892	11	%
Services		47,032	6	%		40,593	8	%		15,281	5	%
Total revenue	$	788,899	100	%	$	556,496	100	%	$	305,896	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:

	Year Ended
	January 1, 2022		December 26, 2020		December 31, 2019
Revenue from third parties:
Taiwan	$	194,458	$	120,959	$	66,601
South Korea		160,373		90,193		43,997
China		151,027		125,023		80,017
United States		123,858		81,708		46,717
Europe		64,943		49,697		23,023
Japan		61,186		59,295		29,816
Southeast Asia		33,054		29,621		15,725
Total revenue	$	788,899	$	556,496	$	305,896

The following chart identifies our customers that represented 10% or more of total revenue for each of the last three fiscal years:

	2021	2020	2019
Taiwan Semiconductor Manufacturing Co. Ltd.	18%	14%	13%
Samsung Semiconductor	16%	15%	^
SK Hynix Inc.	^	^	13%
^ The customer accounted for less than 10% of total revenue during the period.

At January 1, 2022, one customer, Taiwan Semiconductor Manufacturing Co. Ltd. accounted for more than 10% of net accounts receivable.  At December 26, 2020, three customers, Samsung Semiconductor, Taiwan Semiconductor Manufacturing Co. Ltd., and SK Hynix Inc., accounted for more than 10% of net accounts receivable.

Substantially all of the Company’s long-lived assets are located within the United States of America.