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:
Oct. 18, 2005
Filed:
Dec. 09, 2002
Applicant:
Masaaki Niwa, Osaka, JP;
Inventor:
Masaaki Niwa, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L021/76 ;
U.S. Cl.
CPC ...
Abstract
A metal film containing a metal is formed on a silicon layer, and then a surface portion of the silicon layer and the metal film are oxidized so as to form a silicon oxide film containing the metal in a surface portion of the silicon layer.