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:
Jun. 04, 2002
Filed:
Dec. 17, 1999
Applicant:
Inventors:
Charles Jay Alpert, Austin, TX (US);
Rama Gopal Gandham, Wappingers Falls, NY (US);
Jiang Hu, Tianjin, CN;
Jose Luis Neves, Wappingers Falls, NY (US);
Stephen Thomas Quay, Austin, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/750 ;
U.S. Cl.
CPC ...
G06F 1/750 ;
Abstract
A method and system for re-routing interconnects within an integrated circuit design having blockages and bays is disclosed. A net within the integrated circuit design is initially decomposed into multiple two-paths. The net includes interconnects previously routed by utilizing a Steiner tree routing algorithm. Next, a cost associated with each of the two-paths is calculated. A two-path having a a high cost is subsequently selected and re-routed with a lower cost two-path.