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A study on the use of parallel wiring techniques for sub-20nm designs

Published: 20 May 2014 Publication History

Abstract

Wire sizing can be used to reduce the delays of critical nets. However, because of the forbidden pitch issue in sub-20nm designs, wide wires may no longer be an attractive solution because of the restrictive wire spacing requirement from advanced lithography. In this work, we investigate the suitability of the parallel wiring technique, in which multiple parallel wires are used to route the same net, as an alternative to routing a net using a single wide wire. In particular, we study the trade offs between parasitics, timing, power, and routing resources. Our study reveals that wire sizing using both parallel wires and wide wires can be advantageous. Moreover, if high layout densities are required, parallel wiring can be a viable approach in solving timing problems for sub-20nm designs.

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  • (2023)Slew-Driven Layer Assignment for Advanced Non-default-rule WiresWeb Information Systems and Applications10.1007/978-981-99-6222-8_45(539-550)Online publication date: 9-Sep-2023
  • (2022)LA-SVR: A High-Performance Layer Assignment Algorithm with Slew Violations Reduction2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC)10.1109/VLSI-SoC54400.2022.9939586(1-6)Online publication date: 3-Oct-2022
  • (2022)Timing-Aware Layer Assignment for Advanced Process Technologies Considering via PillarsIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems10.1109/TCAD.2021.310029641:6(1957-1970)Online publication date: Jun-2022
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    cover image ACM Conferences
    GLSVLSI '14: Proceedings of the 24th edition of the great lakes symposium on VLSI
    May 2014
    376 pages
    ISBN:9781450328166
    DOI:10.1145/2591513
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    Publication History

    Published: 20 May 2014

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    Author Tags

    1. VLSI
    2. interconnects
    3. parallel wires
    4. physical design
    5. routing

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    May 21 - 23, 2014
    Texas, Houston, USA

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    GLSVLSI '14 Paper Acceptance Rate 49 of 179 submissions, 27%;
    Overall Acceptance Rate 312 of 1,156 submissions, 27%

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    Cited By

    View all
    • (2023)Slew-Driven Layer Assignment for Advanced Non-default-rule WiresWeb Information Systems and Applications10.1007/978-981-99-6222-8_45(539-550)Online publication date: 9-Sep-2023
    • (2022)LA-SVR: A High-Performance Layer Assignment Algorithm with Slew Violations Reduction2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC)10.1109/VLSI-SoC54400.2022.9939586(1-6)Online publication date: 3-Oct-2022
    • (2022)Timing-Aware Layer Assignment for Advanced Process Technologies Considering via PillarsIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems10.1109/TCAD.2021.310029641:6(1957-1970)Online publication date: Jun-2022
    • (2020)MiniDelayProceedings of the 23rd Conference on Design, Automation and Test in Europe10.5555/3408352.3408484(586-591)Online publication date: 9-Mar-2020
    • (2020)MiniDelay: Multi-Strategy Timing-Aware Layer Assignment for Advanced Technology Nodes2020 Design, Automation & Test in Europe Conference & Exhibition (DATE)10.23919/DATE48585.2020.9116269(586-591)Online publication date: Mar-2020
    • (2017)WT-CTS: Incremental Delay Balancing Using Parallel Wiring Type For CTS2017 IEEE Computer Society Annual Symposium on VLSI (ISVLSI)10.1109/ISVLSI.2017.87(465-470)Online publication date: Jul-2017
    • (2017)Delay-driven layer assignment for advanced technology nodes2017 22nd Asia and South Pacific Design Automation Conference (ASP-DAC)10.1109/ASPDAC.2017.7858365(456-462)Online publication date: Jan-2017

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