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. 26, 2019
Filed:
Sep. 23, 2016
Applicant:
Ube Industries, Ltd., Ube-shi, Yamaguchi, JP;
Inventors:
Assignee:
Ube Industries, Ltd., Ube-shi, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/074 (2012.01); H01L 31/0392 (2006.01); B29C 41/24 (2006.01); C08G 73/10 (2006.01); C08L 79/08 (2006.01); C23C 14/20 (2006.01); H01L 31/0749 (2012.01); H01L 31/032 (2006.01); B29K 79/00 (2006.01);
U.S. Cl.
CPC ...
H01L 31/03928 (2013.01); B29C 41/24 (2013.01); C08G 73/1067 (2013.01); C08L 79/08 (2013.01); C23C 14/20 (2013.01); C23C 14/205 (2013.01); H01L 31/0322 (2013.01); H01L 31/0749 (2013.01); B29K 2079/08 (2013.01); Y02E 10/541 (2013.01); Y02P 70/521 (2015.11); Y10T 428/31681 (2015.04);
Abstract
A CIS solar cell having flexibility and high conversion efficiency may be produced, using, as a substrate, a polyimide film which is prepared from an aromatic tetracarboxylic acid component comprising 3,3',4,4′-biphenyltetracarboxylic dianhydride as the main component and an aromatic diamine component comprising p-phenylenediamine as the main component, and has a maximum dimensional change in the temperature-increasing step of from 25° C. to 500° C. within a range of from +0.6% to +0.9%, excluding +0.6%, based on the dimension at 25° C. before heat treatment.