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  1. Article ; Online: High-density via RRAM cell with multi-level setting by current compliance circuits.

    Hsieh, Yu-Cheng / Lin, Yu-Cheng / Huang, Yao-Hung / Chih, Yu-Der / Chang, Jonathan / Lin, Chrong-Jung / King, Ya-Chin

    Discover nano

    2024  Volume 19, Issue 1, Page(s) 54

    Abstract: In this work, multi-level storage in the via RRAM has been first time reported and demonstrated with the standard FinFET CMOS logic process. Multi-level states in via RRAM are achieved by controlling the current compliance during set operations. The new ... ...

    Abstract In this work, multi-level storage in the via RRAM has been first time reported and demonstrated with the standard FinFET CMOS logic process. Multi-level states in via RRAM are achieved by controlling the current compliance during set operations. The new current compliance setting circuits are proposed to ensure stable resistance control when one considers cells under the process variation effect. The improved stability and tightened distributions on its multi-level states on via RRAM have been successfully demonstrated.
    Language English
    Publishing date 2024-03-25
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2731-9229
    ISSN (online) 2731-9229
    DOI 10.1186/s11671-023-03881-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Fusion of memristor and digital compute-in-memory processing for energy-efficient edge computing.

    Wen, Tai-Hao / Hung, Je-Min / Huang, Wei-Hsing / Jhang, Chuan-Jia / Lo, Yun-Chen / Hsu, Hung-Hsi / Ke, Zhao-En / Chen, Yu-Chiao / Chin, Yu-Hsiang / Su, Chin-I / Khwa, Win-San / Lo, Chung-Chuan / Liu, Ren-Shuo / Hsieh, Chih-Cheng / Tang, Kea-Tiong / Ho, Mon-Shu / Chou, Chung-Cheng / Chih, Yu-Der / Chang, Tsung-Yung Jonathan /
    Chang, Meng-Fan

    Science (New York, N.Y.)

    2024  Volume 384, Issue 6693, Page(s) 325–332

    Abstract: Artificial intelligence (AI) edge devices prefer employing high-capacity nonvolatile compute-in-memory (CIM) to achieve high energy efficiency and rapid wakeup-to-response with sufficient accuracy. Most previous works are based on either memristor-based ... ...

    Abstract Artificial intelligence (AI) edge devices prefer employing high-capacity nonvolatile compute-in-memory (CIM) to achieve high energy efficiency and rapid wakeup-to-response with sufficient accuracy. Most previous works are based on either memristor-based CIMs, which suffer from accuracy loss and do not support training as a result of limited endurance, or digital static random-access memory (SRAM)-based CIMs, which suffer from large area requirements and volatile storage. We report an AI edge processor that uses a memristor-SRAM CIM-fusion scheme to simultaneously exploit the high accuracy of the digital SRAM CIM and the high energy-efficiency and storage density of the resistive random-access memory memristor CIM. This also enables adaptive local training to accommodate personalized characterization and user environment. The fusion processor achieved high CIM capacity, short wakeup-to-response latency (392 microseconds), high peak energy efficiency (77.64 teraoperations per second per watt), and robust accuracy (<0.5% accuracy loss). This work demonstrates that memristor technology has moved beyond in-lab development stages and now has manufacturability for AI edge processors.
    Language English
    Publishing date 2024-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.adf5538
    Database MEDical Literature Analysis and Retrieval System OnLINE

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