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. 07, 2009
Filed:
Dec. 28, 2006
Atsuhiko Ikeuchi, Kawasaki, JP;
Atsuhiko Ikeuchi, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An automatic design method of a semiconductor integrated circuit includes: increasing an interval between a plurality of wiring patterns provided on a chip region to relieve a density of the wiring patterns based on first reference information including a criterion about a restriction of wiring length and second reference information including a criterion for a reduction of defect; verifying a circuit characteristic for the result of the relief; first thickening the wiring pattern by using a first design rule having a first correction value for thickening the wiring pattern; and second thickening the wiring pattern having been thickened in said first thickening by using a second design rule having a second correction value higher than the first correction value.