An optimum channel-routing algorithm for polycell layouts of integrated circuits
DAC '73 Proceedings of the 10th Design Automation Workshop
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DAC '76 Proceedings of the 13th Design Automation Conference
DAC '76 Proceedings of the 13th Design Automation Conference
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ICCAD '94 Proceedings of the 1994 IEEE/ACM international conference on Computer-aided design
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SODA '94 Proceedings of the fifth annual ACM-SIAM symposium on Discrete algorithms
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DAC '85 Proceedings of the 22nd ACM/IEEE Design Automation Conference
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Proceedings of the 2000 IEEE/ACM international conference on Computer-aided design
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DAC '83 Proceedings of the 20th Design Automation Conference
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DAC '83 Proceedings of the 20th Design Automation Conference
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DAC '76 Proceedings of the 13th Design Automation Conference
A 2-dimensional placement algorithm for the layout of electrical circuits.
DAC '76 Proceedings of the 13th Design Automation Conference
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DAC '79 Proceedings of the 16th Design Automation Conference
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EURO-DAC '90 Proceedings of the conference on European design automation
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This paper describes an automatic string placement program used to reorder cells in polycell rows such that channel routing in the adjacent channels (a) is not blocked by cyclic constraints, and (b) needs fewer routing tracks. The program utilizes cell reflections and pairwise neighbor exchanges, simultaneously monitoring both the channels immediately above and below the row being reordered. Reductions of 25% in the number of required routing tracks are commonly obtained.