Routing method in computer aided customization of a two level automated universal array

摘要: A routing method implemented in the stored programs of a digital computer ich is programmably operated to generate wire interconnect masks for two level metallization automated universal array having undefined roadbeds between rows cells comprised identical semiconductor device basic units which are further interconnected provide particular integrated circuit structure. Conductor provided by aided design system that, among other things, carries out route analysis process determines roadbed each should be tentatively routed conjunction with generating density profile minimizing congestion and when exceeded, certain wires removed under set criteria pathfinder process. Following analysis, detailed rerouting performed sequentially direct process, greedy channel being after router pathfinding Furthermore, makes single pass from left right all cross successive points simultaneously and, if necessary, deleting or then rerouted