Advanced modular cell placement system with wire length driven affinity system
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United States of America Patent
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Nov 3, 1998
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N/A
app pub date -
Jun 28, 1996
filing date -
Jun 28, 1996
priority date (Note) -
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Abstract
A system for determining an affinity associated with relocating a cell located on a surface of a semiconductor chip to a different location on the surface is disclosed herein. Each cell may be part of a cell net containing multiple cells. The system initially defines a bounding box containing all cells in the net which contains the cell. The system then establishes a penalty vector based on the bounding box and borders of a region containing the cell, computes a normalized sum of penalties for all nets having the cell as a member, and calculates the affinity based on the normalized sum of penalties.
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