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:
Mar. 18, 2008
Filed:
Dec. 13, 2005
Fumihito Watanuki, Tama, JP;
Eiji Nagata, Kawasaki, JP;
Fumihito Watanuki, Tama, JP;
Eiji Nagata, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A method of estimating a wiring complexity degree in a semiconductor integrated circuit with a multi-layered wiring, which has a wiring structure including at least two layers or more, in laying signal wirings, includes a step of predicting a power-supply wiring space used in the semiconductor integrated circuit, a step of dividing the predicted power-supply wiring space onto respective wiring layers, and a step of estimating a complexity degree at a time of laying signal wirings, based on the predicted power-supply wiring space and a wiring specification in respective wiring layers every wiring layer.