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(11)

EP 3 201 956 A1

(12)

(43) Date of publication: 09.08.2017 Bulletin 2017/32 (21) Application number: 15846902.3 (22) Date of filing: 01.10.2015

(51) International Patent Classification (IPC):  H01L 35/32(2006.01) H01L 35/34(2006.01) H01L 35/30(2006.01) (86) International application number: PCT/US2015/053434 (87) International publication number: WO 2016/054333 (07.04.2016 Gazette 2016/14)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 02.10.2014 US 201462059084 P (71) Applicant: Alphabet Energy, Inc. Hayward, CA 94545 (US)

(72) Inventors: LORIMER, Adam Walnut Creek, CA 94597 (US) HANNEMANN, Christopher Berkeley, CA 94703 (US) CRANE, Douglas Richmond, CA 94546 (US) DE PIJPER, Ad Walnut Creek, CA 94596 (US) BEERA, Sasi Bhushan Fremont, CA 94538 (US) CHASE, Jordan Oakland, CA 94605 (US) AGUIRRE, Mario Livermore, CA 94551 (US) FREEMAN, Daniel San Jose, CA 95127 (US) (74) Representative: Grau, Benjamin  Murgitroyd & Company 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)