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. 05, 2005
Filed:
Dec. 23, 2002
Edward G. Moulding, Nepean, CA;
Vadim Gouterman, Toronto, CA;
Edward G. Moulding, Nepean, CA;
Vadim Gouterman, Toronto, CA;
Synopsys, Inc., Mountain View, CA (US);
Abstract
One embodiment of the invention provides a system that communicates feedback from a compactor to a router to facilitate layout of an integrated circuit. The system operates by first receiving a routing for a cell in an integrated circuit layout at the compactor. The system then attempts to compact the routing. If compaction of the routing fails, the system identifies an infeasibility path in the routing and rips up traces on the infeasibility path while leaving other traces undisturbed. The system then adjusts parameters associated with the routing process and reroutes the cell using the adjusted parameters. The system then attempts to compact this rerouting.