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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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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