Patent · US Expired

Local preferred direction routing

US7412682B2 · kind B2 · utility

10Cited by

50References

23Claims

0Family size

Assignee

Cadence Design Systems, Inc. · US

Inventors

Anish Malhotra · San Jose, US
Jonathan Frankle · Los Gatos, US
Asmus Hetzel · Berlin, DE
Etienne Jacques · Sunnyvale, US

Key dates

Filing date	Dec 6, 2004
Grant date	Aug 12, 2008
Priority date	—
Expiry date	Sep 24, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG06F30/394
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Some embodiments of the invention provide a method for routing. The method defines at least one wiring layer that has at least two regions with different local preferred wiring directions. The method then uses the differing local preferred wiring directions to define a global route on the wiring layer. The two regions are a first region with a first local preferred wiring direction, and a second region with a second local preferred wiring direction. The global route traverses the first region along the first local preferred wiring direction and traverses the second region along the second local preferred wiring direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.