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. 26, 2014
Filed:
Sep. 30, 2011
Kotaro Umeda, Amagasaki, JP;
Tomoko Yoshimi, Higashiomi, JP;
Shuhei Katayama, Prague, CZ;
Yoshio Miura, Higashiomi, JP;
Toshihiro Iwaida, Omihachiman, JP;
Takeshi Nakatani, Higashiomi, JP;
Kotaro Umeda, Amagasaki, JP;
Tomoko Yoshimi, Higashiomi, JP;
Shuhei Katayama, Prague, CZ;
Yoshio Miura, Higashiomi, JP;
Toshihiro Iwaida, Omihachiman, JP;
Takeshi Nakatani, Higashiomi, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
A conductive paste for a photovoltaic cell and a method for producing the photovoltaic cell are disclosed. The conductive paste includes a silver powder, glass frit and a sintering inhibitor that suppresses sintering of the silver powder. The sintering inhibitor contains at least one substance selected from aluminum oxide, silicon oxide and silicon carbide. The method includes forming a first anti-reflective layer on a first region of a main surface of a semiconductor substrate; forming a second anti-reflection layer on a second region of the main surface which is different from the first region; coating the electrically conductive paste onto the second anti-reflective layer on the second anti-reflection layer; and forming a surface electrode in the second region by reacting the second anti-reflection layer with the electrically conductive paste at an elevated temperature.