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. 23, 2011
Filed:
Oct. 06, 2006
Applicants:
Fumitaka Tametani, Tokyo, JP;
Takashi Igarashi, Tokyo, JP;
Inventors:
Fumitaka Tametani, Tokyo, JP;
Takashi Igarashi, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A life prediction wireis connected to an emitter-wire bonding padof a semiconductor device. Wire deterioration is detected by checking whether or not an electric current flows from the life prediction wireto the emitter-wire bonding pad. Thus, by directly checking a deterioration state of the semiconductor device, the life of the semiconductor device is predicted.