Method and apparatus for performing routability checking
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United States of America Patent
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Mar 14, 2006
Issued Date -
N/A
app pub date -
Oct 31, 2002
filing date -
Jan 22, 2002
priority date (Note) -
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Abstract
Some embodiments of the invention provide a method of determining whether a set of routes can be geometrically embedded in a region according to a particular wiring model. The method identifies a congestion graph that has a set of edges, where at least two edges are neither orthogonal nor parallel. For each edge, the method identifies the set of routes that intersect the edge. It then determines whether any edge is overcongested.
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