Business Segments

3 Months Ended

Mar. 31, 2012

Segment Reporting [Abstract]

Business Segments

Business Segments

We have two reportable segments, packaging and test. Packaging and test are integral steps in the process of manufacturing semiconductor devices, and our customers will engage with us for both packaging and test services, or just packaging or test services.

The accounting policies for segment reporting are the same as those for our Consolidated Financial Statements as a whole. We evaluate our operating segments based on gross profit and gross property, plant and equipment. We do not specifically identify and allocate total assets by operating segment. Summarized financial information concerning reportable segments is shown in the following table. The “other” column includes corporate adjustments, gross property, plant and equipment of our corporate and sales offices and capital additions that do not directly support manufacturing operations, such as research and development and infrastructure projects.

	Packaging		Test		Other			Total
	(In thousands)
Three months ended March 31, 2012
Net sales	$	581,511	$	73,499	$	—		$	655,010
Depreciation expense	57,920		22,177		—			80,097
Gross profit	87,303		17,678		—			104,981
Capital additions	53,551		49,082		21,302			123,935
Three months ended March 31, 2011
Net sales	$	597,807	$	67,132	$	11		$	664,950
Depreciation expense	54,799		20,418		37			75,254
Gross profit	111,305		15,487		(106		)	126,686
Capital additions	65,984		21,636		17,373			104,993
Gross property, plant and equipment
March 31, 2012	$	3,246,362	931,009		151,449			$	4,328,820
December 31, 2011	3,217,308		880,611		149,696			4,247,615