The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 23, 2022

Filed:

Apr. 01, 2016
Applicant:

Sunpower Corporation, San Jose, CA (US);

Inventors:

Richard Hamilton Sewell, Los Altos, CA (US);

Gabriel Harley, Mountain View, CA (US);

Nils-Peter Harder, San Jose, CA (US);

Assignees:

SunPower Corporation, San Jose, CA (US);

Total Marketing Services, Puteaux, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0224 (2006.01); H01L 31/0745 (2012.01); H01L 31/0236 (2006.01); H01L 31/0216 (2014.01);
U.S. Cl.
CPC ...
H01L 31/022441 (2013.01); H01L 31/02168 (2013.01); H01L 31/02366 (2013.01); H01L 31/0745 (2013.01); Y02E 10/50 (2013.01);
Abstract

Thermocompression bonding approaches for foil-based metallization of non-metal surfaces of solar cells, and the resulting solar cells, are described. For example, a solar cell includes a substrate and a plurality of alternating N-type and P-type semiconductor regions disposed in or above the substrate. A plurality of conductive contact structures is electrically connected to the plurality of alternating N-type and P-type semiconductor regions. Each conductive contact structure includes a metal foil portion disposed in direct contact with a corresponding one of the alternating N-type and P-type semiconductor regions.


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