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:
Nov. 12, 2002
Filed:
Jul. 06, 2000
Sandeep A. Aji, San Jose, CA (US);
Shantanu Ganguly, Austin, TX (US);
John Paz, Santa Clara, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
An automatic and parameterized compute implemented method for transposing wires in an integrated circuit design can y bus lines with similar impedances, and therefore similar signal transmission characteristics. Using a specially designed CAD tool, a user can specify a transposing porn, intervals at which to transpose wires, and a metal layer through which to accomplish the transposing in the integrated circuit. Using a routing database the tool then automatically determines the locations in the design where transposing needs to be performed, re-routes the wires being transposed while optimizing the circuit design space being used, and re-routes (or causes the re-route of) any other wires affected by the transposing process. The result is a new version of the routing database reflecting transposition, but with no change to the circuit's netlist.