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Automatic tub region generation for symbolic layout compaction

Published: 01 June 1989 Publication History

Abstract

This paper describes a new algorithm that automatically generates tub regions for VLSI symbolic layouts with quality comparable to that of human designers. The algorithm supports an explicit modeling of enclosure rules in the layout compaction task with the benefit of robustness and reduced output database size. In addition, the algorithm runs at O(n2) time and O(n) space with the expected run time of O(nlogn).

References

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A.D. Lopez and H-F. S. Law, " A dense gate matrix layout style for MOS LSI," IEEE J. of Solid-State Circuits, Vol SC-15, No. 4, August 1980, pp. 736- 740.
[2]
N,H.E, Weste, "MULGA - an interactive symbolic layout system for the design of integrated circuits," Bell System Technical Journal 60(6) pp, 823-857 (July-Aug. 1981).
[3]
J.P. Fishburn and A.E. Dunlop, 'q'}I,OS: a posynomial programming approach to tJ:ansistor sizing," Digest 1nil. Conf. on Compute.r-Aided Design, pp. 326-328, November 1985.
[4]
Ravl Varadarajan, "Algorithms for circuit layout compaction of building blocks," Master of Science thesis, Texas Tech University, December, 1985.
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F.P. Pleparata and M.I. Shamos, "Computational geometry: an introduction," Springer-Verlag, 1985.
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Raghunath Raghavan, James Cohoon and Sartaj Sahni," Single Bend Wiring," Journal of Algorithms 7, pp 232-257, 1986.
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D.G. Boyer, "Symbolic layout compaction benchmarks results," Digest Intl. Conf. on Computer Design, pp. 209-217, October, 1987.
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W.H. Crocker, R. Varadarajan and C.-Y. Lo, "MACS: a module assembly and compaction system," Digest Intl. Conf. on Computer Design, pp. 205-208, October, 1987.
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D. Dobkin and D.L. Souvaine, "Computational geometry - a user's guide," in "Advances in Robotics" Vol, 1, edited by LT. Sehwarts and C-K. Yap, Lawrence Erlbaum Associates, Inc, 1987.
[10]
B. Lin and A. R. Newton, "KAI~{LUA: a hierarchical circuit disassembler," Proceedings 24-th Design Automation Conference, pp. 311-317, June 1984.
[11]
D.D. Shugard and D.D. Hill, "rub insertion for hierarclfical CMOS designs," AT&T Bell Laboratories Technical Memorandum TM 11253- 880203-03, Feb. 1988.
[12]
J.-F. Lee, "A new framework of design rules for compaction of VLSI layouts," IEEE Transactions on Computer-Aided Design, pp. 1195-1204, Volume 7, Ntmtber 11, November 1988.
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J.P. Cohoon and D.S. Richards, "Optimal twoterminal 0t-~ wire routing," IM'EGRATION, the VLSI journal 6, pp. 35-57, 1988.

Cited By

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  • (1992)Process independent constraint graph compactionProceedings of the 29th ACM/IEEE Design Automation Conference10.5555/113938.149470(318-322)Online publication date: 1-Jul-1992
  • (1992)Process independent constraint graph compaction[1992] Proceedings 29th ACM/IEEE Design Automation Conference10.1109/DAC.1992.227786(318-322)Online publication date: 1992
  • (1990)Using a multiple storage quad tree on a hierarchical VLSI compaction schemeIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems10.1109/43.551829:5(522-536)Online publication date: May-1990

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Published In

cover image ACM Conferences
DAC '89: Proceedings of the 26th ACM/IEEE Design Automation Conference
June 1989
839 pages
ISBN:0897913108
DOI:10.1145/74382
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 01 June 1989

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DAC89: The 26th ACM/IEEE-CS Design Automation Conference
June 25 - 28, 1989
Nevada, Las Vegas, USA

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DAC '89 Paper Acceptance Rate 156 of 465 submissions, 34%;
Overall Acceptance Rate 1,770 of 5,499 submissions, 32%

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Cited By

View all
  • (1992)Process independent constraint graph compactionProceedings of the 29th ACM/IEEE Design Automation Conference10.5555/113938.149470(318-322)Online publication date: 1-Jul-1992
  • (1992)Process independent constraint graph compaction[1992] Proceedings 29th ACM/IEEE Design Automation Conference10.1109/DAC.1992.227786(318-322)Online publication date: 1992
  • (1990)Using a multiple storage quad tree on a hierarchical VLSI compaction schemeIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems10.1109/43.551829:5(522-536)Online publication date: May-1990

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