Title :
Building block routing-a symbolic approach
Author_Institution :
ECAD Inc., Santa Clara, CA, USA
Abstract :
A description is given of a building block router which performs routing in two stages, symbolic routing and compaction. It provides many needed features to support the stringent area and performance requirements of the full custom IC layout. In addition to channel routing, fast and effective switch-box routing made possible by the symbolic environment solves the cyclic constraint problem and improves the routing quality. The ability to honor pre-existing routing provides the flexibility for unlimited customization. In addition, it establishes the foundation for algorithms with different focuses to work together. The success of the router in working with various types of designs and technologies proves it to be a useful production tool
Keywords :
circuit layout CAD; monolithic integrated circuits; CAD; building block router; channel routing; compaction; custom IC layout; cyclic constraint; flexibility; switch-box routing; symbolic environment; symbolic routing; Application specific integrated circuits; Compaction; Design methodology; Electronic design automation and methodology; Integrated circuit layout; Integrated circuit technology; Power system management; Production; Routing; Wire;
Conference_Titel :
Custom Integrated Circuits Conference, 1988., Proceedings of the IEEE 1988
Conference_Location :
Rochester, NY
DOI :
10.1109/CICC.1988.20844
