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. 19, 2016
Filed:
Nov. 06, 2014
Applicant:
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Inventor:
Chieko Kikuchi, Kanagawa, JP;
Assignee:
E I DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/04 (2014.01); H01L 31/18 (2006.01); H01B 1/22 (2006.01); H01L 31/0216 (2014.01); H01L 31/0224 (2006.01);
U.S. Cl.
CPC ...
H01L 31/18 (2013.01); H01B 1/22 (2013.01); H01L 31/02167 (2013.01); H01L 31/022425 (2013.01); H01L 31/022441 (2013.01); H01L 31/1804 (2013.01);
Abstract
A method of manufacturing a solar cell comprising steps of: (a) preparing a substrate comprising a semiconductor layer and a passivation layer formed at least on the back side of the semiconductor layer, wherein the passivation layer on the back side comprises one or more openings; (b) forming an aluminum (Al) conductor pattern at least in the openings of the passivation layer on the back side by applying an Al paste, wherein the Al paste comprises: (i) an Al powder, (ii) a glass frit, (iii) a zirconium carbide (ZrC) powder, and (iv) an organic medium; and (c) firing the Al conductor pattern.