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(11)

EP 2 412 029 A1

(12)

(43) Date of publication: 01.02.2012 Bulletin 2012/05 (21) Application number: 10756809.9 (22) Date of filing: 24.03.2010

(51) International Patent Classification (IPC):  H01L 31/00(2006.01) (86) International application number: PCT/US2010/028534 (87) International publication number: WO 2010/111417 (30.09.2010 Gazette 2010/39)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 24.03.2009 US 162830 P (71) Applicant: Solexel, Inc. Milpitas, CA 95035-7405 (US)	(72) Inventors: WANG, David, Xuan-Qi Fremont CA 94539 (US) MOSLEHI, Mehrdad, M. Los Altos CA 94024 (US) (74) Representative: Richardt, Markus Albert  Richardt Patentanwälte Wilhelmstraße 7 DE-65185 Wiesbaden DE-65185 Wiesbaden (DE)