CAD tools for managing signal integrity and congestion simultaneously

Abstract

An efficient computer-aided approach is presented that manages delay, signal integrity and routing congestion simultaneously in Printed Circuit Boards and Multichip Modules. The approach is based on use of the Signal Integrity Advisor in conjunction with a global router. The tools have been developed as part of a complete design optimization tool-set spanning partitioning, placement, routing and re-routing. It is also shown how the Signal Integrity Advisor can be used to produce wiring rules for a conventional router.