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Routability-aware placement for advanced FinFET mixed-signal circuits using satisfiability modulo theories

Published: 31 May 2022 Publication History

Abstract

Due to the increasingly complex design rules and geometric layout constraints within advanced FinFET nodes, automated placement of full-custom analog/mixed-signal (AMS) designs has become increasingly challenging. Compared with traditional planar nodes, AMS circuit layout is dramatically different for FinFET technologies due to strict design rules and grid-based restrictions for both placement and routing. This limits previous analog placement approaches in effectively handling all of the new constraints while adhering to the new layout style. Additionally, limited work has demonstrated effective routability modeling, which is crucial for successful routing. This paper presents a robust analog placement framework using satisfiability modulo theories (SMT) for efficient constraint handling and routability modeling. Experimental results based on industrial designs show the effectiveness of the proposed framework in optimizing placement metrics while satisfying the specified constraints.

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  1. Routability-aware placement for advanced FinFET mixed-signal circuits using satisfiability modulo theories

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    cover image ACM Conferences
    DATE '22: Proceedings of the 2022 Conference & Exhibition on Design, Automation & Test in Europe
    March 2022
    1637 pages
    ISBN:9783981926361

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    • EDAA: European Design Automation Association
    • IEEE SSCS Shanghai Chapter
    • ESDA: Electronic System Design Alliance
    • IEEE CEDA
    • IEEE CS
    • IEEE-RAS: Robotics and Automation

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    European Design and Automation Association

    Leuven, Belgium

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    Published: 31 May 2022

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    DATE '22: Design, Automation and Test in Europe
    March 14 - 23, 2022
    Antwerp, Belgium

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