Spin Orbit Torque-RAM Write Energy Reduction with Self-Verification Scheme

Taehwan Kim, Jongsun Park

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    As a promising candidate for replacing CMOS-based memories, non-volatile magnetic memory has been on a rise. While Spin transfer torque random access memory (STT-RAM) is considered as most promising candidate, it still suffers from various shortcomings concerning write operation. As a result, spin orbit torque random access memory (SOT-RAM) is considered as next generation non-volatile magnetic memory, for it offers relatively better performance and lower power. Even though SOT-RAM shows various advantages over STT-RAM, to meet the power level of CMOS-based memories, significant reduction of write power is highly required. Therefore, in this paper, we propose novel technique for reducing write power of SOT-RAM with redundant write prevention and early write termination. For application of two techniques, self-verification scheme is exploited. Simulation results using 65nm CMOS technology show that up to 69.5% of write energy can be saved compared to the conventional write operation.

    Original languageEnglish
    Title of host publicationProceedings - International SoC Design Conference 2018, ISOCC 2018
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages19-20
    Number of pages2
    ISBN (Electronic)9781538679609
    DOIs
    Publication statusPublished - 2018 Jul 2
    Event15th International SoC Design Conference, ISOCC 2018 - Daegu, Korea, Republic of
    Duration: 2018 Nov 122018 Nov 15

    Publication series

    NameProceedings - International SoC Design Conference 2018, ISOCC 2018

    Conference

    Conference15th International SoC Design Conference, ISOCC 2018
    Country/TerritoryKorea, Republic of
    CityDaegu
    Period18/11/1218/11/15

    Bibliographical note

    Publisher Copyright:
    © 2018 IEEE.

    Keywords

    • Spin-orbit torque(SOT)
    • Write power reduction

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

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