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:
Aug. 02, 1994
Filed:
Sep. 10, 1992
Applicant:
Inventors:
Takayuki Mizumura, Mihara, JP;
Kenji Sawada, Sumoto, JP;
Naoki Kojima, Sumoto, JP;
Yasuyoshi Kawanishi, Sumoto, JP;
Masatoshi Otsuki, Sumoto, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
136258 ; 136244 ; 136256 ; 437-4 ;
Abstract
A method of amorphous silicon solar cell manufacture comprises forming thin films of transparent electrode, amorphous silicon, and backside electrode, in that order, on a transparent substrate. An alkali resistant metal is used For the backside electrode. The backside electrode and the amorphous silicon layer are wet-etched, thereby opening holes or grooves that penetrate through these layers.