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.

Date of Patent:
Jan. 05, 1993

Filed:

Feb. 07, 1992
Applicant:
Inventors:

Hiroichi Shinohara, Hitachi, JP;

Hirokazu Inoue, Ibaraki, JP;

Yoichi Abe, Hitachi, JP;

Akira Kato, Mito, JP;

Hideo Suzuki, Katsuta, JP;

Kazuji Yamada, Hitachi, JP;

Masaaki Takahashi, Hitachi, JP;

Keiichirou Nakanishi, Kokubunji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H05K / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
361388 ; 257697 ; 257700 ; 257924 ; 174253 ;
Abstract

Noise generated at high frequencies at the time of simultaneous switchings of logical circuits is reduced by lowering an inductance from LSI to a capacitor formed on a substrate. The capacitor is formed to ensure that an inductance from a bonding pad for the LSI loaded on the substrate to an electrode of the capacitor is 0.05 nanohenry. The lower inductance from the LSI to the capacitor allows a reduction in the amount of the noise at high frequencies among those generated in power supply system, whereby the rising time of signals is made shorter, and the speed of arithmetic operation can be increased.


Find Patent Forward Citations

Loading…