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:
Jan. 27, 2015
Filed:
Apr. 21, 2010
Applicant:
Adrian Turner, Palo Alto, CA (US);
Inventor:
Adrian Turner, Palo Alto, CA (US);
Assignee:
Tetrasun, Inc., Saratoga, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 31/00 (2006.01); B23K 26/36 (2014.01); B23K 26/06 (2014.01); B23K 26/073 (2006.01); B23K 26/08 (2014.01);
U.S. Cl.
CPC ...
B23K 26/36 (2013.01); B23K 26/0656 (2013.01); B23K 26/073 (2013.01); B23K 26/083 (2013.01);
Abstract
A conductive contact pattern is formed on a surface of solar cell by forming a thin conductive layer over at least one lower layer of the solar cell, and ablating a majority of the thin conductive layer using a laser beam, thereby leaving behind the conductive contact pattern. The laser has a top-hat profile, enabling precision while scanning and ablating the thin layer across the surface. Heterocontact patterns are also similarly formed.