Patent ID: 8607180
Filing Date: 2013-12-10
Classification: G06F

Abstract:
1. A method of routing a block of an integrated circuit, comprising: grouping a first plurality of signals into at least a second plurality of signals and a third plurality of signals based on a switching property of each of said first plurality of signals, said switching property based on switching activity that varies according to a mode said integrated circuit is operating; routing, by using at least one computer, said second plurality of signals and not routing said third plurality of signals using a routing algorithm that reduces crosstalk between each of said first plurality of signals by increasing a spacing between routed signal lines to spacing that is greater than a minimum spacing for signals routed next to each other; and, after routing said second plurality of signal lines and not routing said third plurality of signals, routing, by using at least one computer, said third plurality of signals in said spacing between routed signal lines thereby providing shielding between at least two of said second plurality of signals.