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:
Feb. 14, 2023
Filed:
Feb. 21, 2019
Applicant:
First Solar, Inc., Tempe, AZ (US);
Inventors:
Nikhil Bhandari, Perrysburg, OH (US);
Charles Wickersham, Perrysburg, OH (US);
Assignee:
First Solar, Inc., Tempe, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01L 31/18 (2006.01); H01L 31/0216 (2014.01); H01L 31/0224 (2006.01); H01L 31/0296 (2006.01); H01L 31/05 (2014.01);
U.S. Cl.
CPC ...
H01L 31/186 (2013.01); H01L 31/0296 (2013.01); H01L 31/02167 (2013.01); H01L 31/022466 (2013.01); H01L 31/0516 (2013.01); H01L 31/1828 (2013.01);
Abstract
According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 μs. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.