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. 27, 2022
Filed:
Jun. 28, 2019
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Jaewon Chang, Seoul, KR;
Kyungjin Shim, Seoul, KR;
Hyunjung Park, Seoul, KR;
Junghoon Choi, Seoul, KR;
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0747 (2012.01); H01L 31/0216 (2014.01); H01L 31/18 (2006.01); C23C 16/24 (2006.01); H01L 21/48 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02167 (2013.01); H01L 31/0747 (2013.01); H01L 31/186 (2013.01); H01L 31/1864 (2013.01); H01L 31/1868 (2013.01); C23C 16/24 (2013.01); H01L 21/4867 (2013.01); Y02E 10/50 (2013.01);
Abstract
A solar cell includes a silicon substrate, an emitter area formed on a front surface of the silicon substrate, a tunneling oxide layer formed on a back surface of the silicon substrate, a back surface field area formed on the tunneling oxide layer and formed of a polycrystalline silicon layer, a back passivation film formed on the back surface field area and having an opening, and a back electrode connected to the back surface field area via the opening.