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. 30, 2007
Filed:
Apr. 30, 2004
Applicants:
Kaoru Saigoh, Kawasaki, JP;
Kouichi Nagai, Kawasaki, JP;
Inventors:
Kaoru Saigoh, Kawasaki, JP;
Kouichi Nagai, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01); H01L 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a semiconductor substrate, a circuit part formed on and above the semiconductor substrate, a passivation film covering the circuit part, an electrode pad provided outside the circuit part in such a manner that the electrode pad is exposed from the passivation film, and a guard ring pattern provided between the electrode pad and the circuit part such that the guard ring pattern surrounds the circuit part substantially. The guard ring pattern extends from a surface of the semiconductor substrate to the passivation film.