Integrated circuit cell placement using optimization-driven clustering
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United States of America Patent
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Oct 15, 1996
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N/A
app pub date -
May 26, 1993
filing date -
May 26, 1993
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Abstract
An integrated circuit layout technique is described which employs an optimization-driven clustering technique to provide improved cell placement. The technique utilizes clustering of cells based upon Rent's rule, with global-optimization-derived inter-cell distances being used to break ties when identical Rent exponents are encountered. A constraint on the number of cells permitted to be in a cluster and a constraint on the maximum Rent exponent which to be considered for merging clusters minimize the 'overgrowth' of clusters and serve to even out cluster size, ideally suiting the technique to conventional partitioning and placement schemes.
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