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. 09, 2013
Filed:
Oct. 16, 2009
Yasuo Kousaki, Kawasaki, JP;
Yasuo Kousaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Method includes specifying a first relationship between power supply voltage in a semiconductor device and the maximum operable frequency of internal circuit upon fluctuation of the power supply voltage being detected by changing the power supply voltage in the semiconductor device and the operating frequency of the internal circuit, specifying second relationship between the maximum operable frequency of the internal circuit and the mounting manner of the decoupling capacitor upon the fluctuation of the power supply voltage being detected by changing the mounting manner of the decoupling capacitor and the operating frequency of the internal circuit, and calculating the fluctuation amount of the power supply voltage corresponding to the decoupling capacitor mounting manner based on the first relationship and the second relationship.