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. 13, 2005
Filed:
Jan. 23, 2003
Kanji Otsuka, Higashiyamamto-shi, Tokyo, JP;
Tadatomo Suga, Nakano-ku, Tokyo, JP;
Tamotsu Usami, Kokubunji-shi, Tokyo, JP;
Kanji Otsuka, Higashiyamamto-shi, Tokyo, JP;
Tadatomo Suga, Nakano-ku, Tokyo, JP;
Tamotsu Usami, Kokubunji-shi, Tokyo, JP;
Other;
NEC Corporation, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
SHARP Kabushiki Kaisha, Osaka, JP;
Sony Corporatoin, Tokyo, JP;
TOSHIBA Corporation, Tokyo, JP;
Fujitsu Limited, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Rohm Co., Ltd., Kyoto, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A bypass capacitor having a given capacitance is arranged on the power/ground line adjacently to a driver circuit in a chip to reduce an effect of transient phenomenon at switching. The capacitance of the bypass capacitor is preset so as to be larger than a parasitic capacitance of the driver circuit to prevent the characteristic impedance of the power/ground line from being higher than the characteristic impedance of internal wiring.