Intangible Assets and Goodwill (Tables)

12 Months Ended

Mar. 31, 2011

Mar. 31, 2010

Notes to Financial Statements [Abstract]

Intangible assets consist of the following (amounts in thousands):

	March 31, 2011
	Gross Amount		Accumulated Amortization			Net Amount
Developed technology	$	83,451	$	(27,694	)	$	55,757
Customer-related		15,600		(1,621	)		13,979
Trademarks and trade names		1,730		(250	)		1,480
Backlog		2,410		(1,709	)		701
In-process technology		4,600		(11	)		4,589
Distribution rights		5,236		(4,147	)		1,089
Covenants not to compete		400		(66	)		334
	$	113,427	$	(35,498	)	$	77,929

	March 31, 2010
	Gross Amount		Accumulated Amortization			Net Amount
Developed technology	$	48,609	$	(17,967	)	$	30,642
Customer-related		400		(12	)		388
In-process technology		2,900		---			2,900
Distribution rights		5,236		(3,639	)		1,597
	$	57,145	$	(21,618	)	$	35,527

Projected Amortization Expense

The following is an expected amortization schedule for the intangible assets for fiscal year 2012 through fiscal year 2016, absent any future acquisitions or impairment charges (amounts in thousands):

Year ending March 31,	Projected Amortization Expense
2012	$12,811
2013	13,304
2014	12,281
2015	12,201
2016	10,284

Goodwill Activity

Goodwill activity for fiscal years 2011 and 2010 was as follows (amounts in thousands):

	Semiconductor Products Reporting Unit		Technology Licensing Reporting Unit
Balance at March 31, 2009	$	36,165	$	---
Additions due to acquisitions		4,173		---
Balance at March 31, 2010		40,338		---
Additions due to the acquisition of SST		5,761		19,200
Additions due to contingent consideration payments to previous owners of R&E International		9,747		---
Additions due to other acquisitions		972		---
Balance at March 31, 2011	$	56,818	$	19,200