How to obtain more compactable channel routing solutions

The authors present several powerful techniques which allow them to generate efficiently channel routing solutions which are beneficial to further compaction. These techniques can be applied to straight-track compaction as well as to contour-routing compaction and produce very encouraging results. In particular, for D.N. Deutsch´s (1985) Difficult Example, they obtained straight-track routing solution with an area 7% less than the best known result after straight-track compaction. The router generated a routing solution using less area than reported results of all well known routers after contour-routing compaction.<>