Geographic and Significant Customer Information

9 Months Ended

Sep. 27, 2014

Segment Reporting [Abstract]

Geographic and Significant Customer Information

Geographic and Significant Customer Information

The Company has one operating segment, which is the sale, design, manufacture, marketing and support of thin film and optical critical dimension systems. The following tables summarize total net revenues (based on the deployments and service location of the systems) and long-lived assets (excluding intangible assets) attributed to significant geographic regions (in thousands):

	Three Months Ended				Nine Months Ended
	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
United States	$	5,511	$	15,665	$	25,554	$	41,426
Japan	4,099		2,387		10,005		9,617
Taiwan	640		3,737		11,337		6,959
China	2,848		901		27,694		6,952
South Korea	6,327		9,805		30,589		18,946
Other	7,708		6,549		21,559		14,248
Total net revenues	$	27,133	$	39,044	$	126,738	$	98,148

	At
	September 27, 2014		December 28, 2013
United States	$	50,061	$	44,775
Japan	82		125
South Korea	337		445
All Other	256		2,094
Total long-lived tangible assets	$	50,736	$	47,439

The following customers accounted for 10% or more of total accounts receivable as of the following dates:

	September 27, 2014		December 28, 2013
SK Hynix	26	%	22	%
Taiwan Semiconductor Mfg. Co.	***		12	%
Global Foundries	14	%	***
Samsung Electronics Co. Ltd.	***		27	%
Intel Corporation	***		14	%
Micron Technology, Inc.	12	%	***

*** The customer accounted for less than 10% of total accounts receivable as of that period end.

The following customers accounted for 10% or more of total net revenues:

	Three Months Ended				Nine Months Ended
	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
Intel Corporation	***		34	%	14	%	30	%
SK Hynix	27	%	23	%	16	%	18	%
Samsung Electronics Co. Ltd.	***		***		28	%	***
Micron Technology, Inc.	25	%	***		***		***

*** The customer accounted for less than 10% of total net revenues for that period.