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author:

Meng, J. (Meng, J..) [1] | Weng, S. (Weng, S..) [2] | Cai, Z. (Cai, Z..) [3] | Chen, Y. (Chen, Y..) [4] | Lin, Z. (Lin, Z..) [5] | Chen, J. (Chen, J..) [6]

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Abstract:

Placement is a critical stage for VLSI routability optimization. A placement engine without considering the layout congestion might lead to poor solutions with routing failures. This paper introduces a Coulomb force-based global placement framework that addresses global and local routing congestions. We first present a routing path-based cell padding strategy for local congestion mitigation. Then, we construct a routability-aware placement model that utilizes virtual Coulomb forces to eliminate crucial global congestion. Compared with a leading academic placer, RePlAce, and the advanced commercial tool, Innovus, the experimental results on industrial benchmark suites show that our proposed algorithm achieves the best routability within the shortest runtime. © 2024 Copyright is held by the owner/author(s). Publication rights licensed to ACM.

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  • [ 1 ] [Meng J.]Center for Discrete Mathematics and Theoretical Computer Science, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Weng S.]College of Computer and Data Science, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Cai Z.]State Key Laboratory of Integrated Chips and Systems, Fudan University, Shanghai, 200433, China
  • [ 4 ] [Chen Y.]Center for Discrete Mathematics and Theoretical Computer Science, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Lin Z.]Center for Discrete Mathematics and Theoretical Computer Science, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Lin Z.]State Key Laboratory of Integrated Chips and Systems, Fudan University, Shanghai, 200433, China
  • [ 7 ] [Chen J.]State Key Laboratory of Integrated Chips and Systems, Fudan University, Shanghai, 200433, China

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ISSN: 0738-100X

Year: 2024

Language: English

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 1

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