The Hughes Automated Layout System - automated LSI/VLSI layout based on channel routing
DAC '81 Proceedings of the 18th Design Automation Conference
Methods for hierarchical automatic layout of custom LSI circuit masks
DAC '78 Proceedings of the 15th Design Automation Conference
DAC '80 Proceedings of the 17th Design Automation Conference
DAC '80 Proceedings of the 17th Design Automation Conference
DAC '76 Proceedings of the 13th Design Automation Conference
A high quality, low cost router for MOS/LSI
DAC '72 Proceedings of the 9th Design Automation Workshop
Wire routing by optimizing channel assignment within large apertures
DAC '71 Proceedings of the 8th Design Automation Workshop
A combined force and cut algorithm for hierarchical VLSI layout
DAC '82 Proceedings of the 19th Design Automation Conference
MIRAGE - a simple-model routing program for the hierarchical layout design of IC masks
DAC '79 Proceedings of the 16th Design Automation Conference
A symbolic-interconnect router for custom IC design
DAC '84 Proceedings of the 21st Design Automation Conference
Module positioning algorithms for rectilinear macrocell assemblies
DAC '84 Proceedings of the 21st Design Automation Conference
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In this paper a new routing method for cells of complex geometries (building blocks, macrocells) in hierarchical VLSI design is presented. It is based on an appropriate channel model and a channel routing algorithm for embedding net segments of variable wire width. An H-V-routing scheme is used for two layer routing. A new database system for handling n- corner rectangles of individual size and shape has been developed.