Segment Reporting and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting and Geographic Information

Schedule of sales by end-market

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(in thousands)
Sales by end-market
Advanced Packaging, MEMS & RF Filters	$	24,758	$	21,827	$	51,911	$	32,738
LED Lighting, Display & Compound Semiconductor	87,817		54,310		177,733		109,458
Front-End Semiconductor	18,152		10,322		27,609		11,480
Scientific & Industrial	27,052		25,759		59,100		53,041
Total	$	157,779	$	112,218	$	316,353	$	206,717

Schedule of sales by geographic region

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(in thousands)
Sales by geographic region
United States	$	32,939	$	20,860	$	56,694	$	37,906
China	70,457		27,644		145,850		68,165
EMEA(1)	25,405		14,752		41,151		37,192
Rest of World	28,978		48,962		72,658		63,454
Total	$	157,779	$	112,218	$	316,353	$	206,717

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