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author:

Lin, Zhifeng (Lin, Zhifeng.) [1] (Scholars:林智锋) | Wei, Min (Wei, Min.) [2] | Chen, Yilu (Chen, Yilu.) [3] | Zou, Peng (Zou, Peng.) [4] | Chen, Jianli (Chen, Jianli.) [5] | Chang, Yao-Wen (Chang, Yao-Wen.) [6]

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EI

Abstract:

Placement is a critical stage for VLSI timing closure. A global placer without considering timing delay might lead to inferior solutions with timing violations. This paper proposes an electrostatics-based timing optimization method for VLSI global placement. Simulating the optimal buffering behavior, we first present an analytical delay model to calculate each connection delay accurately. Then, a timing-driven block distribution scheme is developed to optimize the critical path delay while considering the path-sharing effect. Finally, we develop a timing-aware precondition technique to speed up placement convergence without degrading timing quality. Experimental results on industrial benchmark suites show that our timing-driven placement algorithm outperforms a leading commercial tool by 6.7% worst negative slack (WNS) and 21.6% total negative slack (TNS). © 2024 EDAA.

Keyword:

Dissociation Electrostatics Timing circuits VLSI circuits

Community:

  • [ 1 ] [Lin, Zhifeng]Center For Discrete Mathematics And Theoretical Computer Science, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Lin, Zhifeng]Fudan University, State Key Laboratory Of Integrated Chips And Systems, Shanghai; 200433, China
  • [ 3 ] [Wei, Min]Fudan University, State Key Laboratory Of Integrated Chips And Systems, Shanghai; 200433, China
  • [ 4 ] [Chen, Yilu]Center For Discrete Mathematics And Theoretical Computer Science, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Zou, Peng]Fudan University, State Key Laboratory Of Integrated Chips And Systems, Shanghai; 200433, China
  • [ 6 ] [Chen, Jianli]Fudan University, State Key Laboratory Of Integrated Chips And Systems, Shanghai; 200433, China
  • [ 7 ] [Chang, Yao-Wen]Graduate Institute Of Electronics Engineering, National Taiwan University, Taipei; 10617, Taiwan

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ISSN: 1530-1591

Year: 2024

Language: English

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 2

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