TIMING-DRIVEN GLOBAL PLACEMENT BASED ON GEOMETRY-AWARE TIMING BUDGETS
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United States of America Patent
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Nov 12, 2002
Grant Date -
Jan 2, 2003
app pub date -
Apr 11, 2001
filing date -
Apr 11, 2001
priority date (Note) -
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Abstract
A system and method for timing-closed placement which also takes wirelength and congestion into consideration. In one aspect, the system and method of timing driven placement according to the present invention incorporates a timing budget management technique which satisfies triangle parity and inequality, a timing-driven quadrisection placement strategy based on flexible timing window configurations to minimize the wirelength and congestion during each mincut quad-partition of top-down hierarchy, and a linear programming formulation incorporating bin capacity, channel capacity and congestion criticality.
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