Geographic and Significant Customer Information (Tables)

9 Months Ended

Sep. 28, 2013

Geographic and Significant Customer Information [Abstract]

The following table summarizes 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 28, 2013		September 29, 2012		September 28, 2013		September 29, 2012
Total net revenues:
United States	$	15,665	$	6,888	$	41,426	$	32,337
China	901		1,270		6,952		3,907
Japan	2,387		5,896		9,617		12,746
South Korea	9,805		18,554		18,946		75,663
Israel	486		147		1,248		6,623
Taiwan	3,737		6,233		6,959		12,105
Singapore	2,157		792		6,602		1,579
All Other	3,906		4,158		6,398		7,651
Total net revenues	$	39,044	$	43,938	$	98,148	$	152,611

Long-lived tangible assets



	At
	September 28, 2013		December 29, 2012
Long-lived tangible assets:
United States	$	43,771	$	40,600
Japan	107		148
South Korea	476		520
All Other	2,243		1,945
Total long-lived tangible assets	$	46,597	$	43,213

Customers accounted for 10% or more of total accounts receivable

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



	At
	September 28, 2013		December 29, 2012
Intel Corporation	10.0	%	12.3	%
SK Hynix	46.0	%	***
Samsung Electronics Co. Ltd.	***		***
Micron Technology, Inc.	***		***
Taiwan Semiconductor Mfg. Co.	***		17.3	%

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

Customers accounted for 10% or more of total revenue

The following customers accounted for 10% or more of total revenue



	Three Months Ended				Nine Months Ended
	September 28, 2013		September 29, 2012		September 28, 2013		September 29, 2012
Intel Corporation	34.3	%	15.3	%	29.8	%	20.1	%
SK Hynix	23.3	%	24.1	%	17.5	%	18.9	%
Samsung Electronics Co. Ltd.	***		17.4	%	9.4	%	31.6	%
Taiwan Semiconductor Mfg. Co.	***		12.8	%	***		***