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Automatic routing system for circuit layout

  • US 20010038612A1
  • Filed: 03/01/2001
  • Published: 11/08/2001
  • Est. Priority Date: 09/30/1999
  • Status: Abandoned Application
First Claim
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1. A method for planning the routing of circuit paths on at least one routing surface, comprising the steps of:

  • defining a topology of the circuit paths on the routing surface according to input data for connections to be routed and respective routing constraints associated with the connections to be routed;

    creating the circuit paths for connections to be routed having associated routing constraints, iteratively within each one of a plurality of predetermined unit zones of the at least one routing surface wherein the plurality of predetermined unit zones are processed in a predetermined sequence, the circuit paths being created according to the defined topology of the circuit paths within each unit zone;

    verifying the circuit paths created, by evaluating the circuit paths for compliance with the respective routing constraints associated with the connections to be routed, during the step of creating the circuit paths; and

    saving data describing the circuit paths created for the at least one routing surface.

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