Method and apparatus for specifying a distance between an external state and a set of states in space
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United States of America Patent
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May 23, 2006
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N/A
app pub date -
Dec 31, 2002
filing date -
Jun 4, 2002
priority date (Note) -
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Abstract
Some embodiments provide a method of computing the estimated distance between an external state and a set of states in a multi-state space that represents a region of a design layout. The method identifies a polygon that encloses the set of states. It then identifies vectors to project from the vertices of the polygon based on a model that allows penalizes measurements in certain directions more than other directions. Based on the projected vectors, the method then identifies the estimated distance.
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