CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Mar. 31, 2011
ASSETS
Cash and cash equivalents	$ 651,383	$ 703,924
Short-term investments	866,369	539,572
Accounts receivable, net	196,254	181,202
Inventories	202,455	180,800
Prepaid expenses	22,486	22,234
Deferred tax assets	87,473	88,822
Other current assets	69,267	58,429
Total current assets	2,095,687	1,774,983
Property, plant and equipment, net	545,703	540,513
Long-term investments	199,550	464,838
Goodwill	76,028	76,018
Intangible assets, net	75,583	77,929
Other assets	36,748	33,777
Total assets	3,029,299	2,968,058
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	67,528	68,433
Accrued liabilities	114,957	131,839
Deferred income on shipments to distributors	145,598	140,044
Total current liabilities	328,083	340,316
Junior convertible debentures	349,109	347,334
Long-term income tax payable	61,742	58,125
Deferred tax liability	401,126	399,527
Other long-term liabilities	10,017	10,318
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued or outstanding.	0	0
Common stock, $0.001 par value; 450,000,000 shares authorized; 218,789,994 shares issued and 190,561,404 shares outstanding at June 30, 2011; 218,789,994 shares issued and 189,541,707 shares outstanding at March 31, 2011	191	190
Additional paid-in capital	1,269,303	1,268,128
Retained earnings	1,462,231	1,428,838
Accumulated other comprehensive income	5,284	3,357
Common stock held in treasury: 28,228,490 shares at June 30, 2011; 29,248,287 shares at March 31, 2011	(857,787)	(888,075)
Total stockholders' equity	1,879,222	1,812,438
Total liabilities and stockholders' equity	$ 3,029,299	$ 2,968,058