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:
Aug. 27, 2002
Filed:
Jul. 10, 2000
Fumihiro Kimura, Nara, JP;
Takahiro Ichinomiya, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The layout method of a semiconductor integrated circuit device according to the present invention includes a net list modification process for adding a cell to a flip-flop group directly connected to the clock source, a process for generating gated circuit division information which allocates the division number of the gated circuit and the drive ability of the cell so that the drive ability of the cell is selected and the delay value becomes uniform, a gated circuit division process for forming a cluster by dividing each of the gated circuits through clustering, a gated cell division process for allocating to each cluster the same number of gated cells as that of the formed clusters and a gated cell front stage CTS process in order to reduce the skew of the clock signal from the clock source via the gated cell to the flip-flop and to control the power consumption of the clock signal part.