Segment Reporting and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting and Geographic Information

Schedule of sales by end-market

	For the year ended December 31,
	2019		2018		2017
	(in thousands)
Sales by end-market
Front-End Semiconductor	$	120,128	$	62,582	$	40,319
Advanced Packaging, MEMS & RF Filters		66,909		90,775		67,406
LED Lighting, Display & Compound Semiconductor		72,791		249,974		248,615
Scientific & Industrial		159,521		138,751		119,346
Total	$	419,349	$	542,082	$	475,686

Schedule of sales by geographic region

	Net Sales to Unaffiliated Customers						Long-lived Tangible Assets
	2019		2018		2017		2019		2018		2017
	(in thousands)
United States	$	126,160	$	125,659	$	93,433	$	75,187	$	78,503	$	81,046
China		71,078		194,032		106,674		130		81		64
EMEA(1)		57,351		89,102		72,979		143		205		231
Rest of World		164,760		133,289		202,600		251		1,495		3,717
Total	$	419,349	$	542,082	$	475,686	$	75,711	$	80,284	$	85,058

(1) EMEA consists of Europe, the Middle East, and Africa