Geographic and Customer Concentration Information - Note 11

12 Months Ended

Dec. 31, 2011

Geographic and Customner Concentration Information [Abstract]

Geographioc and Customer Concentration Information Disclosure

11. GEOGRAPHIC AND CUSTOMER CONCENTRATION INFORMATION

We have one operating segment, the design, manufacturing and marketing of advanced fabrication equipment to the semiconductor manufacturing industry. The authoritative guidance on segment reporting and disclosure defines operating segment as a component of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. As our business is completely focused on one industry segment, the design, manufacturing and marketing of advanced fabrication equipment to the semiconductor manufacturing industry, management believes that we have one reportable segment. Our revenues and profits are generated from the sales of systems and services in this one segment. For the purposes of evaluating our reportable segments, our Chief Executive Officer is the chief operating decision maker, as defined in the applicable authoritative guidance.

The following table summarizes net sales by geographic areas based on the installation locations of the systems and the location of services rendered:

	Year Ended December 31,
	2011		2010		2009
	(thousands)	%	(thousands)	%	(thousands)	%
Net sales:
United States	$    10,311	6	$     7,211	5	$   3,601	8
Korea	84,623	46	67,973	49	14,619	34
Taiwan	37,507	20	18,878	14	7,233	17
China	12,110	7	16,210	12	5,143	12
Japan	14,764	8	7,005	5	1,272	3
Other Asia	6,238	3	13,641	10	6,842	17
Europe and others	19,394	10	7,418	5	4,038	9
	$ 184,947	100	$ 138,336	100	$ 42,748	100

In 2011, two customers accounted for 42 percent and 10 percent of total revenues, respectively. In 2010, two customers accounted for 40 percent and 12 percent of total revenues, respectively. In 2009, three customers accounted for 30 percent, 15 percent and 10 percent of total revenues, respectively.

At December 31, 2011, three customers accounted for 48 percent, 15 percent and 13 percent of our accounts receivable, respectively. At December 31, 2010, four customers accounted for 19 percent, 13 percent, 11 percent and 11 percent of our accounts receivable, respectively.

Geographical information relating to our property and equipment as of December 31, 2011 and 2010 is as follows:

	December 31,
	2011	2010
	(thousands)
Property and equipment, net:
United States	$   5,306	$   9,880
Germany	2,396	2,236
Canada	2,281	2,507
Others	569	388
	$ 10,552	$ 15,011