Method and apparatus for defining vias
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United States of America Patent
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May 24, 2005
Issued Date -
N/A
app pub date -
Aug 14, 2002
filing date -
Jan 22, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Some embodiments of the invention provide a method for identifying locations of potential via between two layers of a design layout. The method identifies on one layer a first non-rectangular polygonal region for containing the via, and identifies on the other layer a second non-rectangular polygonal region for containing the via. It then determines whether an intersection of the first and second regions is sufficiently large to contain a via. If the intersection is sufficiently large, the method identifies the intersection of the two regions as a region for containing a via.
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