A negotiated congestion based router for simultaneous escape routing

Qiang Ma, Tan Yan, Martin D F Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The negotiated congestion based routing scheme finds success in FPGA routing and IC global routing. However, its application in simultaneous escape routing, a key problem in PCB design, has never been reported in previous literature. In this paper, we investigate how well the negotiated congestion based router performs on escape routing problems. We propose an underlying routing graph which correctly models the routing resources of the pin grids on board. We then build a Negotiated Congestion based Escape Router (NCER) by applying the negotiated congestion routing scheme on the constructed routing graph. We compare the performance of NCER with that of Cadence PCB router Allegro on 14 industrial test cases, and experimental results show that the two routers have comparable routability: each of them completely routes 7 test cases. Moreover, we observe that NCER and Allegro exhibit complementary behaviors: each is able to solve most of the test cases that the other cannot solve. Together, they completely route 11 test cases. Therefore, by using NCER as a supplement to Allegro, we can solve a broader range of escape routing problems.

Original languageEnglish (US)
Title of host publicationProceedings of the 11th International Symposium on Quality Electronic Design, ISQED 2010
Pages606-610
Number of pages5
DOIs
StatePublished - May 28 2010
Event11th International Symposium on Quality Electronic Design, ISQED 2010 - San Jose, CA, United States
Duration: Mar 22 2010Mar 24 2010

Publication series

NameProceedings of the 11th International Symposium on Quality Electronic Design, ISQED 2010

Other

Other11th International Symposium on Quality Electronic Design, ISQED 2010
CountryUnited States
CitySan Jose, CA
Period3/22/103/24/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Ma, Q., Yan, T., & Wong, M. D. F. (2010). A negotiated congestion based router for simultaneous escape routing. In Proceedings of the 11th International Symposium on Quality Electronic Design, ISQED 2010 (pp. 606-610). [5450514] (Proceedings of the 11th International Symposium on Quality Electronic Design, ISQED 2010). https://doi.org/10.1109/ISQED.2010.5450514