(19)
(11) EP 2 856 512 A1

(12)

(43) Date of publication:
08.04.2015 Bulletin 2015/15

(21) Application number: 13798110.6

(22) Date of filing: 29.05.2013
(51) International Patent Classification (IPC): 
H01L 31/04(2014.01)
H01L 31/18(2006.01)
(86) International application number:
PCT/US2013/043193
(87) International publication number:
WO 2013/181298 (05.12.2013 Gazette 2013/49)
(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

(30) Priority: 29.05.2012 US 201261652833 P
29.04.2013 US 201361816830 P
24.05.2013 US 201361827252 P

(71) Applicants:
  • Solexel, Inc.
    Milpitas, CA 95035 (US)
  • Deshpande, Anand
    San Jose, CA 95133 (US)
  • Kapur, Pawan
    Burlingame, CA 94010 (US)
  • Rana, Virendra, V.
    Los Gatos, CA 95032 (US)
  • Moslehi, Mehrdad, M.
    Los Altos, CA 94024 (US)
  • Seutter, Sean, M.
    San Jose, CA 95127 (US)
  • Deshazer, Heather Dawn
    Palo Alto, California 94306 (US)
  • Kommera, Swaroop
    Milpitas, CA 95035 (US)
  • Anbalagan, Pranav
    Milpitas, CA 95035 (US)
  • Rattle, Benjamine, E.
    Oakland, CA 94609 (US)
  • Coutant, Solene
    San Jose, CA 95126 (US)

(72) Inventors:
  • DESHPANDE, Anand
    San Jose, CA 95133 (US)
  • KAPUR, Pawan
    Burlingame, CA 94010 (US)
  • RANA, Virendra, V.
    Los Gatos, CA 95032 (US)
  • MOSLEHI, Mehrdad, M.
    Los Altos, CA 94024 (US)
  • SEUTTER, Sean, M.
    San Jose, CA 95127 (US)
  • DESHAZER, Heather
    Palo Alto, CA 94306 (US)
  • KOMMERA, Swaroop
    Milpitas, CA 95035 (US)
  • ANBALAGAN, Pranav
    Milpitas, CA 95035 (US)
  • RATTLE, Benjamine, E.
    Oakland, CA 94609 (US)
  • COUTANT, Solene
    San Jose, CA 95126 (US)

(74) Representative: Richardt Patentanwälte PartG mbB 
Wilhelmstraße 7
65185 Wiesbaden
65185 Wiesbaden (DE)

   


(54) STRUCTURES AND METHODS OF FORMATION OF CONTIGUOUS AND NON-CONTIGUOUS BASE REGIONS FOR HIGH EFFICIENCY BACK-CONTACT SOLAR CELLS