US 7,536,665 B1
User-guided autorouting
Greg Horlick, Madison State, Ala. (US); Randall Lawson, Westford, Mass. (US); Donald Morgan, Chelmsford, Mass. (US); Paul Musto, Hollis, N.H. (US); Joe Smedley, Chelmsford, Mass. (US); Ken Wadland, Grafton, Mass. (US); Richard Woodward, San Diego, Calif. (US); Sean Bergan, Andover, Mass. (US); and Walter M. Katz, Boulder, Colo. (US)
Assigned to Cadence Design Systems, Inc., San Jose, Calif. (US)
Filed on Jul. 25, 2006, as Appl. No. 11/492,021.
Int. Cl. G06F 17/50 (2006.01)
U.S. Cl. 716—12  [716/13; 716/14; 716/15] 11 Claims
OG exemplary drawing
 
1. A method for routing a circuit design comprising:
assigning a plurality of rats interconnecting terminals in a layout of the circuit design to a bundle;
placing said bundle in said layout along a user-preferred path pre-specified on said layout; and
biasing an autorouter to route and store data indicative of at least one of said plurality of rats in accordance with said bundle placement in said user-preferred path.