Wire Swizzling to Reduce Delay Uncertainty Due to Capacitive Coupling

Reduction of worst-case delay and delay uncertainty due to capacitive coupling is a still unsolved problem in physical design. We describe a routing only layout solution - swizzling - which reduces worst-case coupling delay for long parallel wires such as in wide on-chip global buses. We understand that swizzling is a folklore in structured-custom design community but we are the first to describe the method and analyze the potential benefits in literature. We give a general method for construction of good swizzling patterns. We also give empirically determined, optimal swizzling patterns for various technology nodes and typ

• Type: Conference
• Year: 2004
• Where: VLSID
• Authors: Puneet Gupta, Andrew B. Kahng
• Keywords: Computer Architecture, Delay Uncertainty, VLSID 2004, Worst-case Coupling Delay, Worst-case Delay