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:
May. 10, 2011
Filed:
Jun. 23, 2005
Takashi Watsuji, Osaka, JP;
Haruzo Katoh, Osaka, JP;
Ken Kikuchi, Osaka, JP;
Toyo Aluminium Kabushiki Kaisha, Osaka, JP;
Abstract
Provided are: a paste composition which is capable of keeping a desired function for a backside electrode of a solar cell and strengthening the bond between an aluminum electrode layer and a p type silicon semiconductor substrate even if glass frit as a substance giving a bad effect on the environment is not incorporated into the composition or the content of glass frit as a substance giving a bad effect on the environment therein is decreased; and a solar cell element provided with an electrode formed by use of the composition. The paste composition is a paste composition for forming an aluminum electrode layer () over a p type silicon semiconductor substrate (), comprising aluminum powder, an organic vehicle, and a metal alkoxide. The solar cell element provided with the aluminum electrode layer () formed by applying the paste composition having the above-mentioned characteristic to the p type silicon semiconductor substrate () and then firing the resultant.