MODULAR CELL PLACEMENT SYSTEM WITH AFFINITY DRIVEN DISCRETE PLACEMENT OPTIMIZATION

摘要

A system for improving the position of cells located on a surface of a semiconductor chip having at least one region located thereon is disclosed herein. The system calculates affinities for relocating the cell to an alternate region, computes a first threshold, and repositions all cells having a maximum affinity greater than the first threshold to the region providing the maximum affinity for the cell. Affinities that may be calculated for utilization in the system include affinities as a function of region capacity, wire length, nets crossing region borders and/or cell clusters.