Presentation 2000/1/11
Heuristic Algorithms for Routing Nonplanar Connections Through Areas under Elements in Printed Wiring Board Design
Daisuke Takafuji, Sinpei Sumikawa, Toshimasa Watanabe,
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Abstract(in English) We propose two algorithms RUE and EJ routing nonplanar connections through areas under elements in printed wiring board design. Nonplanar connections represent jumpers in single-layered design or connection requirements among different layers through vias in multi-layered one. We compare their capability through experiment. Both algorithms repeat finding shortest paths of graphs with congestion costs as edge or vertex weights. It is shown that RUE can embed average 3.8% more nonplanar edges than EJ and that CPU time of RUE is 1 / 6.4 of that of EJ on average.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) printed wiring boards / routing problem / congestion costs / route graphs / shortest paths
Paper # VLD99-95,CPSY99-104
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Committee VLD
Conference Date 2000/1/11(1days)
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Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Heuristic Algorithms for Routing Nonplanar Connections Through Areas under Elements in Printed Wiring Board Design
Sub Title (in English)
Keyword(1) printed wiring boards
Keyword(2) routing problem
Keyword(3) congestion costs
Keyword(4) route graphs
Keyword(5) shortest paths
1st Author's Name Daisuke Takafuji
1st Author's Affiliation Department of Circuits and Systems, Faculty of Engineering, Hiroshima University()
2nd Author's Name Sinpei Sumikawa
2nd Author's Affiliation Department of Circuits and Systems, Faculty of Engineering, Hiroshima University
3rd Author's Name Toshimasa Watanabe
3rd Author's Affiliation Department of Circuits and Systems, Faculty of Engineering, Hiroshima University
Date 2000/1/11
Paper # VLD99-95,CPSY99-104
Volume (vol) vol.99
Number (no) 529
Page pp.pp.-
#Pages 8
Date of Issue