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:
Jul. 23, 2002
Filed:
Aug. 23, 2000
Yoshihiko Ikemoto, Kawasaki, JP;
Mitsuo Abe, Kawasaki, JP;
Yoshitsugu Katoh, Kawasaki, JP;
Sumikazu Hosoyamada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a semiconductor device, an influence of the simultaneous switching noise is reduced by increasing the decoupling capacity between a ground ring and a power supply ring. A semiconductor element having a plurality of electrode pads is mounted on a redistribution substrate. The power supply ring and the ground ring are formed on the redistribution substrate in a surrounding area of the semiconductor element. One of the ground ring and the power supply ring has a plurality of convex portions protruding toward the other of the ground ring and the power supply ring. The other of the ground ring and the power supply ring has a plurality of concave portions each of which receives the corresponding one of the convex portions with a predetermined distance therebetween.