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:
Jul. 13, 2010
Filed:
Mar. 27, 2006
Toshio Asaumi, Kobe, JP;
Toshiaki Baba, Kobe, JP;
Akira Terakawa, Nara, JP;
Yasufumi Tsunomura, Kobe, JP;
Toshio Asaumi, Kobe, JP;
Toshiaki Baba, Kobe, JP;
Akira Terakawa, Nara, JP;
Yasufumi Tsunomura, Kobe, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
Solar cells and methods of their manufacture are described that exhibit decreased or eliminated leak current, improved open voltage and improved fill factor characteristics. In an embodiment, a separate processed surface is interposed between a first and a second main surface of a crystal substrate, as prepared by laser irradiation and cut processing. The laser irradiation is applied to an amorphous semiconductor layer of the same conductive type as an underlying single crystal substrate, but does not penetrate an underlying amorphous opposite type layer. Details of lamination and laser characteristics for processing the layers are provided.