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research-article

Cell transformations and physical design techniques for 3D monolithic integrated circuits

Published: 08 October 2013 Publication History

Abstract

3D Monolithic Integration (3DMI), also termed as sequential integration, is a potential technology for future gigascale circuits. In 3DMI technology the 3D contacts, connecting different active layers, are in the order of few 100nm. Given the advantage of such small contacts, 3DMI enables fine-grain (gate-level) partitioning of circuits. In this work we present three cell transformation techniques for standard cell-based ICs with 3DMI technology. As a major contribution of this work, we propose a design flow comprising of a cell transformation technique, cell-on-cell stacking, and a physical design technique (CELONCELPD) aimed at placing cells transformed with cell-on-cell stacking. We analyze and compare various cell transformation techniques for 3DMI technology without disrupting the regularity of the IC design flow. Our experiments demonstrate the effectiveness of CELONCEL design technique, yielding us an area reduction of 37.5%, 16.2% average reduction in wirelength, and 6.2% average improvement in overall delay, compared with a 2D case when benchmarked across various designs in 45nm technology node.

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    Published In

    cover image ACM Journal on Emerging Technologies in Computing Systems
    ACM Journal on Emerging Technologies in Computing Systems  Volume 9, Issue 3
    September 2013
    196 pages
    ISSN:1550-4832
    EISSN:1550-4840
    DOI:10.1145/2533711
    Issue’s Table of Contents
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Publication History

    Published: 08 October 2013
    Accepted: 01 June 2012
    Revised: 01 May 2012
    Received: 01 October 2011
    Published in JETC Volume 9, Issue 3

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    Author Tags

    1. 3D integration
    2. 3D monolithic
    3. cell transformation techniques
    4. layout

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    • (2021)Power Management of Monolithic 3D Manycore Chips with Inter-tier Process VariationsACM Journal on Emerging Technologies in Computing Systems10.1145/343076517:2(1-19)Online publication date: 6-Jan-2021
    • (2020)McPAT-Monolithic: An Area/Power/Timing Architecture Modeling Framework for 3-D Hybrid Monolithic Multicore SystemsIEEE Transactions on Very Large Scale Integration (VLSI) Systems10.1109/TVLSI.2020.300272328:10(2146-2156)Online publication date: Oct-2020
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    • (2018)Hybrid Monolithic 3-D IC FloorplannerIEEE Transactions on Very Large Scale Integration (VLSI) Systems10.1109/TVLSI.2018.283260726:10(1868-1880)Online publication date: Oct-2018
    • (2016)Electrical Coupling of Monolithic 3-D InvertersIEEE Transactions on Electron Devices10.1109/TED.2016.2578946(1-4)Online publication date: 2016
    • (2015)Monolithic 3D IntegrationCHIPS 2020 VOL. 210.1007/978-3-319-22093-2_3(51-91)Online publication date: 20-Sep-2015

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