STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2011

STOCKHOLDERS' EQUITY

Summary of the distribution of stock-based compensation expense

	Three Months Ended					Six Months Ended
	June 30, 2011			June 30, 2010		June 30, 2011			June 30, 2010
	(in thousands)
Cost of revenues	$	2,347		$	2,187	$	4,640		$	3,864
Research and development		4,786			6,301		10,768			9,585
Selling, general and administrative		7,124			13,162		17,738			18,173
Total stock-based compensation expense, before income taxes		14,257			21,650		33,146			31,622
Tax benefit		(2,433	)		-		(5,077	)		-
Total stock-based compensation expense, net of income taxes	$	11,824		$	21,650	$	28,069		$	31,622

Activity under the entity's 2005 Stock Plan

				Outstanding Options
									Weighted- Average Exercise Price per Share
	Available for Grant			Number of Options			Exercise Price per Share
	(in thousands, except per share data)
Balances, December 31, 2010		11,463			12,660		$	1.68-$14.94	$	4.35
Restricted stock units issued		(642	)		-			-		-
Adjustment for restricted stock units issued		(501	)		-			-		-
Performance-based restricted stock units issued		(9	)		-			-		-
Adjustment for performance-based restricted stock units issued		(7	)		-			-		-
Restricted stock units cancelled		152			-			-		-
Adjustment for restricted stock units cancelled		119			-			-		-
Options cancelled/expired/forfeited		22			(22	)	$	3.59-$14.94		6.68
Options exercised		-			(2,467	)	$	1.80-$13.77		4.61
Balances, March 31, 2011		10,597			10,171		$	1.68-$13.77	$	4.28
Additional shares authorized		19,000			-			-		-
Restricted stock units issued		(461	)		-			-		-
Adjustment for restricted stock units issued		(332	)		-			-		-
Performance-based restricted stock units issued		(3,409	)		-			-		-
Adjustment for performance-based restricted stock units issued		(2,079	)		-			-		-
Restricted stock units cancelled		172			-			-		-
Adjustment for restricted stock units cancelled		134			-			-		-
Options cancelled/expired/forfeited		17			(17	)	$	2.11-4.92		3.58
Options exercised		-			(1,008	)	$	1.80-13.77		4.28
Balance, June 30, 2011		23,639			9,146		$	1.68-$10.01	$	4.28

Assumptions used to estimate the fair value of the Company's ESPP shares

	Three Months Ended						Six Months Ended
	June 30, 2011			June 30, 2010			June 30, 2011			June 30, 2010
Risk-free interest rate		0.17	%		0.18	%		0.17	%		0.18	%
Expected life (years)		0.50			0.50			0.50			0.50
Expected volatility		41	%		41	%		41	%		41	%
Expected dividend yield		-			-			-			-