July 2, 2009 -- Pulsic, Ltd. has been granted US Patent (11383658) for a unique routing innovation incorporated in its physical chip design software. This important patent, titled "Automatic Routing Nets According to Current Density Rules," protects unique technology incorporated in Pulsic’s UniRoute automated router.

By taking into account the current required by the individual branches in a net, UniRoute is able to optimize a net’s width. This innovation creates the smallest net width that satisfies the electro-migration rules for current density. Optimizing the net widths not only eliminates the risk of electro-migration but also significantly reduces IR losses and minimises routing area. For layout engineers, this eliminates the need to estimate current densities and manually calculate varying net-widths for high fan-out interconnects.

Mark Waller, Vice President of Research and Development for Pulsic, said, "Without this technique, nets are either over-engineered and so take up too much area, or manual intervention causes current density rule violations that need to be fixed late in the design cycle. UniRoute’s unique approach optimizes net width during automatic routing, taking into account current needs throughout the net and reducing branch sizes accordingly.”