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:
Dec. 25, 2012
Filed:
Aug. 18, 2010
Applicants:
Hitoshi Fujiwara, Shiojiri, JP;
Takayasu Horasawa, Matsumoto, JP;
Kenichi Kazama, Matsumoto, JP;
Inventors:
Assignees:
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
C. Uyemura & Co., Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor apparatus includes an aluminum electrode film formed on a semiconductor chip; and a nickel plated layer formed on the aluminum electrode film, wherein a concentration of sodium and potassium present in the nickel plated layer and at an interface between the nickel plated layer and the aluminum electrode film is 3.20×10atoms/cmor less.