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:
Dec. 26, 2006
Filed:
Jan. 13, 2002
Steven Teig, Menlo Park, CA (US);
Oscar Buset, Morges, CH;
Etienne Jacques, Sunnyvale, CA (US);
Andrew Caldwell, Santa Clara, CA (US);
Jonathan Frankle, Los Gatos, CA (US);
Steven Teig, Menlo Park, CA (US);
Oscar Buset, Morges, CH;
Etienne Jacques, Sunnyvale, CA (US);
Andrew Caldwell, Santa Clara, CA (US);
Jonathan Frankle, Los Gatos, CA (US);
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
A method for routing of some embodiments defines global routes for nets in an arbitrary region of a circuit layout in which each net has a set of pins. The method uses a first set of lines of measure the length of the global routes, a second set of lines to measure congestion of the global routes, and a third set of lines to partition the arbitrary region into a first set of sub-regions. For each net, the method identifies a global route that connects a group of first-set sub-regions that contain the net's set of pins.