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.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
Apr. 29, 2014
Applicant:
Solexel, Inc., Milpitas, CA (US);
Inventors:
Virendra V. Rana, Los Gatos, CA (US);
Pawan Kapur, Burlingame, CA (US);
Sean M. Seutter, San Jose, CA (US);
Mehrdad M. Moslehi, Los Altos, CA (US);
Assignee:
OB Realty, LLC., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/18 (2006.01); H01L 31/068 (2012.01); H01L 31/0224 (2006.01); B23K 26/00 (2014.01); B23K 26/18 (2006.01); H01L 31/0216 (2014.01); H01L 31/0236 (2006.01); H01L 31/0352 (2006.01); B23K 26/0622 (2014.01); B23K 101/40 (2006.01); B23K 103/00 (2006.01);
U.S. Cl.
CPC ...
H01L 31/1864 (2013.01); B23K 26/0006 (2013.01); B23K 26/0084 (2013.01); B23K 26/0624 (2015.10); B23K 26/18 (2013.01); H01L 31/02167 (2013.01); H01L 31/02363 (2013.01); H01L 31/022425 (2013.01); H01L 31/022441 (2013.01); H01L 31/0352 (2013.01); H01L 31/035281 (2013.01); H01L 31/068 (2013.01); H01L 31/0682 (2013.01); H01L 31/1868 (2013.01); B23K 2201/40 (2013.01); B23K 2203/56 (2015.10); Y02E 10/547 (2013.01);
Abstract
Laser patterning methods utilize a laser absorbent hard mask in combination with wet etching to form patterned solar cell doped regions to improve cell efficiency by avoiding laser ablation of an underlying semiconductor substrate associated with ablation of an overlying transparent passivation layer.