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Satisfying routing rules during circuit design

  • US 8,745,565 B2
  • Filed: 10/29/2009
  • Issued: 06/03/2014
  • Est. Priority Date: 08/31/2009
  • Status: Active Grant
First Claim
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1. A method for satisfying routing rules during routing of an integrated circuit (IC) chip design, comprising:

  • receiving a routing solution for the IC chip design and a set of routing rules to be satisfied by the routing solution;

    assigning a weight to each routing rule in the set of routing rules, wherein a higher weight for a routing rule indicates a higher importance of the routing rule;

    assigning an effort level to each routing rule in the set of routing rules, wherein an effort level for a routing rule indicates one or more of;

    the number of iterations that can be used to satisfy the routing rule, or the number of rip-up and reroutes that can be used to satisfy the routing rule; and

    modifying, by computer, the routing solution to satisfy the routing rules based at least on the weights and the effort levels that were assigned to the routing rules.

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