Christopher Yi Bonner

US Patent:

20080314443, Dec 25, 2008

Filed:

Jun 20, 2008

Appl. No.:

12/143556

Inventors:

Christopher Michael Bonner - Menlo Park CA, US
Peter Cousins - Menlo Park CA, US
Denis De Ceuster - Woodside CA, US

International Classification:

H01L 31/00

US Classification:

136255

Abstract:

A solar cell is described. The solar cell is fabricated on a substrate, the substrate having a front surface and a back surface. The substrate includes, at the front surface, a first region having a first global thickness and a second region having a second global thickness. The second global thickness is greater than the first global thickness. A plurality of alternating n-type and p-type doped regions is disposed at the back surface of the substrate.