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. 26, 2011
Filed:
Feb. 08, 2008
Yutaka Uematsu, Hachioji, JP;
Tatsuya Saito, Kunitachi, JP;
Hideki Osaka, Oiso, JP;
Yoji Nishio, Tokyo, JP;
Shunichi Saito, Tokyo, JP;
Yutaka Uematsu, Hachioji, JP;
Tatsuya Saito, Kunitachi, JP;
Hideki Osaka, Oiso, JP;
Yoji Nishio, Tokyo, JP;
Shunichi Saito, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
As a power feed route in a semiconductor chip, a power feed route which reduces antiresonance impedance in the frequency range of tens of MHz is to be realized thereby to suppress power noise in a semiconductor device. By inserting structures which raise the resistance in the medium frequency band into parts where the resistance is intrinsically high, such as power wiring in a semiconductor package and capacitor interconnecting electrode parts, the antiresonance impedance in the medium frequency band can be effectively reduced while keeping the impedance low at the low frequency.