(19)

(11)

EP 2 179 442 A2

(12)

(88) Date of publication A3: 09.04.2009 (43) Date of publication: 28.04.2010 Bulletin 2010/17 (21) Application number: 08796037.3 (22) Date of filing: 27.06.2008

(51) International Patent Classification (IPC):  H01L 23/04(2006.01) (86) International application number: PCT/US2008/068542 (87) International publication number: WO 2009/006284 (08.01.2009 Gazette 2009/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 28.06.2007 US 769927 28.06.2007 US 769937 (71) Applicant: Sandisk Corporation Milpitas, CA 95035 (US)	(72) Inventors: LIAO, Chien-Ko Milpitas, CA 95035 (US) CHIU, Chin-Tien Milpitas, CA 95035 (US) CHIEN, Jack, Chang Milpitas, CA 95035 (US) YU, Cheemen Milpitas, CA 95035 (US) TAKIAR, Hem Milpitas, CA 95035 (US) (74) Representative: Tothill, John Paul  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)