REVENUE FROM CONTRACTS WITH CUSTOMERS

12 Months Ended

Dec. 31, 2021

Revenue From Contracts With Customer [Abstract]

Revenue From Contracts With Customer

NOTE 3 – REVENUE FROM CONTRACTS WITH CUSTOMERS

The Company assesses revenues based upon the nature or type of goods or services it provides and the geographic location of the related business. The following tables present disaggregated revenue information:

	Year Ended December 31,
	2021		2020		2019
Single Wafer Cleaning, Tahoe and Semi-Critical Cleaning Equipment	$	189,208	$	131,248		90,501
ECP (front-end and packaging), Furnace and Other Technologies		33,210		13,343		6,900
Advanced Packaging (excluding ECP), Services & Spares		37,333		12,033		10,124
Total Revenue By Product Category	$	259,751	$	156,624		107,524
Wet cleaning and other front-end processing tools	$	202,268	$	136,317		90,935
Advanced packaging, other processing tools, services and spares		57,483		20,307		16,590
Total Revenue Front-end and Back-End	$	259,751	$	156,624		107,524

	Year Ended December 31,
	2021		2020		2019
Mainland China	$	258,615	$	154,359		103,467
Other Regions		1,136		2,265		4,057
	$	259,751	$	156,624		107,524