Method and apparatus for costing routes of nets
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United States of America Patent
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May 10, 2005
Grant Date -
May 20, 2004
app pub date -
Dec 31, 2002
filing date -
Nov 18, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Some embodiments of the invention provide a method of costing routes for a set of nets. The method identifies at least one route for each net, where each route has a particular length. It also identifies an estimated route length for each net. It then computes a cost that includes an exponential expression for each net. Each net's exponential expression includes a base and an exponent. The exponent of each net's exponential expression includes the length of the net's route divided by the estimated route length for the net.
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