Geographic and Significant Customer Information

The Company has one operating segment, which is the sale, design, manufacture, marketing and support of thin film, optical critical dimension, overlay dimension metrology and inspection systems. 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				Six Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Total net revenues:
United States	$	16,328	$	13,872	$	25,761	$	25,449
China	5,407		1,702		6,051		2,637
Japan	2,018		2,511		7,230		6,850
South Korea	5,594		29,638		9,141		57,109
Israel	506		159		761		6,475
All Other	4,699		5,299		10,160		10,153
Total net revenues	$	34,552	$	53,181	$	59,104	$	108,673



	At
	June 29, 2013		December 29, 2012
Long-lived tangible assets:
United States	$	40,719	$	40,600
Japan	111		148
South Korea	440		520
Israel	8		13
All Other	2,553		1,932
Total long-lived tangible assets	$	43,831	$	43,213

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



	At
	June 29, 2013		December 29, 2012
Intel Corporation	20.2	%	12.3	%
SK Hynix	15.1	%	***
Samsung Electronics Co. Ltd.	14.6	%	***
Micron Technology, Inc.	11.0	%	***
Taiwan Semiconductor Mfg. Co.	***		17.3	%

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

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



	Three Months Ended				Six Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Intel Corporation	25.1	%	13.9	%	26.9	%	22.1	%
SK Hynix	23.4	%	24.6	%	14.9	%	16.8	%
Samsung Electronics Co. Ltd.	14.6	%	34.3	%	12.3	%	37.3	%