Integrated circuit analysis systems and methods
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United States of America Patent
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Apr 15, 2014
Grant Date -
Dec 23, 2010
app pub date -
Jun 17, 2010
filing date -
Jun 18, 2009
priority date (Note) -
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Abstract
The current invention uses structural data mining methods and systems, combined with partitioning hints and heuristics, to locate high level library functional blocks in a gate level netlist of an integrated circuit (IC). In one embodiment of the invention, the library is created by synthesizing various design blocks and constraints. The method supports characterization matching between a netlist and a library, between libraries and between netlists. The data mining method described herein uses a subgraph growing method to progressively characterize the graph representation of the netlist of the IC. In one embodiment of the invention, alternative hashing is used to perform subgraph characterization. Further, the located high level functional blocks may be used to substitute the corresponding portions of the target netlist having the matched characterizations, and may be annotated accordingly in the resulting netlist.
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