Controlling on-chip inductive coupling of signal busses through swizzling

On-chip inductive coupling effects have been shown to depend directly on the overlap length between adjacent signal wires. This has major effect on global signal busses in high performance microprocessors. These busses are usually routed as a bundle containing a large number of signals traveling for long distances. In this paper, we propose a routing technique known as swizzling to control the inductive coupling effects between signal wires in global signal busses. The advantage of this technique is reducing the inductive coupling effects with zero area or routing resource cost.