Segment Reporting and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting and Geographic Information

Schedule of sales by end-market

	For the year ended December 31,
	2018		2017		2016
	(in thousands)
Sales by end-market
Advanced Packaging, MEMS & RF Filters	$	90,775	$	67,406	$	67,484
LED Lighting, Display & Compound Semiconductor		249,974		248,615		145,701
Front-End Semiconductor		62,582		40,319		8,427
Scientific & Industrial		138,751		119,346		110,090
Total	$	542,082	$	475,686	$	331,702

Schedule of sales by geographic region

	Net Sales to Unaffiliated Customers						Long-lived Tangible Assets
	2018		2017		2016		2018		2017		2016
	(in thousands)
United States	$	125,659	$	93,433	$	85,582	$	78,503	$	81,046	$	60,012
China		194,032		106,674		84,604		81		64		219
EMEA(1)		89,102		72,979		84,181		205		231		93
Rest of World		133,289		202,600		77,335		1,495		3,717		322
Total	$	542,082	$	475,686	$	331,702	$	80,284	$	85,058	$	60,646

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