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:
Nov. 14, 2023

Filed:

May. 23, 2022
Applicant:

Maxeon Solar Pte. Ltd., Singapore, SG;

Inventors:

Taeseok Kim, Pleasanton, CA (US);

Gabriel Harley, Mountain View, CA (US);

John Wade Viatella, Los Gatos, CA (US);

Périne Jaffrennou, Mountain View, CA (US);

Assignee:

Maxeon Solar Pte. Ltd., Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0224 (2006.01); H01L 31/18 (2006.01); B23K 26/364 (2014.01); B23K 26/354 (2014.01); H01L 31/05 (2014.01); H01L 31/0745 (2012.01); H01L 21/60 (2006.01);
U.S. Cl.
CPC ...
H01L 31/022441 (2013.01); B23K 26/354 (2015.10); B23K 26/364 (2015.10); H01L 31/0516 (2013.01); H01L 31/0745 (2013.01); H01L 31/182 (2013.01); H01L 2021/60292 (2013.01); Y02E 10/50 (2013.01);
Abstract

Approaches for foil-based metallization of solar cells and the resulting solar cells are described. For example, a method of fabricating a solar cell involves locating a metal foil above a plurality of alternating N-type and P-type semiconductor regions disposed in or above a substrate. The method also involves laser welding the metal foil to the alternating N-type and P-type semiconductor regions. The method also involves patterning the metal foil by laser ablating through at least a portion of the metal foil at regions in alignment with locations between the alternating N-type and P-type semiconductor regions. The laser welding and the patterning are performed at the same time.


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