ADVANCED MODULAR CELL PLACEMENT SYSTEM WITH OVERLAP REMOVER WITH MINIMAL NOISE

摘要

A method for refining the position of linearly aligned cells on the surface of a semiconductor chip is disclosed herein. The method comprises defining an array of spaces between cells based on maximum and minimum cell positions, establishing a minimum spacing between cells, and linearly shifting cells in a predetermined manner such that no cells are closer to one another than the miminum spacing between cells. The system further increases the size associated with each cell by a fixed amount. The system then performs various density equalization routines to all cells, and locates cells having a size greater than a predetermined quantity and fixes those cells. Finally, the system executes a plurality of optimal cell movement routines to crystallize cell placement.