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Ultrafast Superlattice Phase-change Artificial Synapse

Research Project

Project/Area Number 21H01382
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionGunma University

Principal Investigator

Yin You  群馬大学, 大学院理工学府, 教授 (10520124)

Co-Investigator(Kenkyū-buntansha) 難波 一輝  千葉大学, 大学院情報学研究院, 准教授 (60359594)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2021: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywordsシナプス素子 / 相変化材料 / 人工知能 / 高速化 / 人工シナプス / 相変化 / 高速 / 超高速 / 超格子
Outline of Research at the Start

最近、脳型システムが世界中で非常に注目されている。膨大な画像データのリアルタイムでの高速処理が強く求められ、この脳型システムの基幹部分である人工シナプスの高速化は極めて重要な課題である。シナプス機能実証の研究報告例が多くある中、学習機能の超高速化を目指した研究はほとんど報告されていない。本研究では、超格子相変化シナプス機能材料を探求し、今まで開発した動作法により人工シナプスを超高速化することを目的とする。

Outline of Final Research Achievements

In recent years, a new concept of brain-like systems that have the functions of neurons and synapses, the basic components of the brain, has been proposed, and research has progressed significantly. Artificial synapses have the problem of slow speed due to limitations in materials, operating principles, and operating methods. In order to realize and develop new technologies such as autonomous driving, which require rapid response to instantaneous situation changes, with a view to application in all future situations, we have to explore synaptic functional materials, operating principles, and operating methods. In this study, we used first-principles calculation methods to search for new phase change materials by adding other atoms. It was demonstrated that the fabricated synapse device exbihited much faster operating speed than those of the human brain. The controllability was investigated by changing the pulse shape into a step-like shape.

Academic Significance and Societal Importance of the Research Achievements

新規超格子状メモリ機能相変化材料の理論解析から応用まで多くの研究報告例があったが、他原子添加法による物性制御の研究がほぼ見当たらない。本研究では、他原子の添加により革新的超格子シナプス機能材料を開発でき、超格子材料の人工知能分野への新規応用が期待される。また、将来のあらゆる場面での応用を見据え、瞬時的な状況変化への迅速な対応が必要とされる自動運転等の新技術を実現・発展するには、ヒトの脳機能を遥かに超える脳型システムの開発が極めて重要である。本研究はそれに向かって着実に進んだものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (31 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (27 results) (of which Int'l Joint Research: 18 results,  Invited: 7 results)

  • [Journal Article] Characterization of undoped and N-Ti codoped Zn5Sb3Te chalcogenides2023

    • Author(s)
      Fujiwara Takao、Niiyama Koji、Yin You
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SG Pages: SG1023-SG1023

    • DOI

      10.35848/1347-4065/acbda5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Braille recognition by E-skin system based on binary memristive neural network2023

    • Author(s)
      Liu Y. H.、Wang J. J.、Wang H. Z.、Liu S.、Wu Y. C.、Hu S. G.、Yu Q.、Liu Z.、Chen T. P.、Yin Y.、Liu Y.
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1

    • DOI

      10.1038/s41598-023-31934-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] N-Doped GeTe for Phase-Change Device with High Reliability2023

    • Author(s)
      S. Yahagi, and Y. Yin
    • Journal Title

      Journal of Mechanical and Electrical Intelligent System

      Volume: 6 Pages: 10-14

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proposal of a Novel Operation Method to Precisely Control Synaptic Strength for Phase-Change Artificial Synapse2021

    • Author(s)
      Y. Yin
    • Journal Title

      Journal of Mechanical and Electrical Intelligent System

      Volume: 4 Pages: 13-18

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] High-Performance Chalcogenide-based Phase-Change Memory Technology2024

    • Author(s)
      Y. Yin
    • Organizer
      2024 IEEE the 13th International Conference on Communications, Circuits, and Systems (ICCCAS)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] N-O Doped Sb2Te3 Phase-Change Materials for High Performance Artificial Synaptic Device2024

    • Author(s)
      Y. Yin, and K. Niiyama
    • Organizer
      2024 IEEE 7th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 人工シナプス素子の高性能化に向けたNドープSb3Te相変化材料の開発2024

    • Author(s)
      吉本 匠汰、尹 友
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Doping O into Conventional GeTe/Sb2Te3 Superlattice for Functional Material of Artificial Synapse2023

    • Author(s)
      M. Miuchi, E. Sawai, S Yahagi, and Y. Yin
    • Organizer
      The 7th International Conference on Technology and Social Science 2023 (ICTSS2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] O-Doped GeTe Chalcogenide for High-Performance Phase-Change Device2023

    • Author(s)
      S. Yahagi, M. Miuchi, S. Yoshimoto, T. Miyata, T. Fujiwara, and Y. Yin
    • Organizer
      36th International Microprocesses and Nanotechnology Conference (MNC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First-Principles Study of O-Doped GeTe/Sb2Te3 Superlattice2023

    • Author(s)
      M. Miuchi, R. Shirakawa, E. Sawai, S. Yahagi, and Y. Yin
    • Organizer
      36th International Microprocesses and Nanotechnology Conference (MNC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Doped Chalcogenides for High-Performance Phase Change Devices2023

    • Author(s)
      Y. Yin, M. Miuchi, S. Yahagi, and T. Fujiwara
    • Organizer
      2023 IEEE 15th International Conference on ASIC (ASICON 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高信頼性に向けた酸素添加GeTe相変化薄膜の作製と評価2023

    • Author(s)
      矢矧 俊祐、吉本 匠汰、宮田 大暉、美内 睦美、尹 友
    • Organizer
      The 20th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 第一原理計算による酸素添加GeTe/Sb2Te3超格子人工シナプス機能材料の研究2023

    • Author(s)
      美内 睦美、白川 遼馬、澤井 英志、矢矧 俊祐、尹 友
    • Organizer
      The 20th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2023 Annual Research Report
  • [Presentation] N-Doped GeTe for Highly Reliable Phase-Change Device2022

    • Author(s)
      S. Yahagi and Y. Yin
    • Organizer
      11th International Science, Social Sciences, Engineering and Energy Conference (I-SEEC 2022) and 6th International Conference on Technology and Social Science 2022 (ICTSS 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Undoped and Doped Zn5Sb3Te Chalcogenides for Use in Phase-Change Device with High Thermal Stability2022

    • Author(s)
      Y. Yin, T. Fujiwara, K. Niiyama and S. Yahagi
    • Organizer
      11th International Science, Social Sciences, Engineering and Energy Conference (I-SEEC 2022) and 6th International Conference on Technology and Social Science 2022 (ICTSS 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] N-Ti Codoped Zn5Sb3Te1 Chalcogenide for Artificial Synaptic Functional Material2022

    • Author(s)
      T. Fujiwara, K. Niiyama and Y. Yin
    • Organizer
      35th International Microprocesses and Nanotechnology Conference (MNC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent Progress in Phase Change Materials and Devices2022

    • Author(s)
      Y. Yin, K. Niiyama, T. Fujiwara, R. Shirakawa, S. Yahagi and M. Miuchi
    • Organizer
      2022 IEEE 16th International Conference on Solid-State and Integrated Circuit Technology (ICSICT-2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 熱安定性改善のためのZn5Sb3Te1にNとTiをコドープした新規相変化材料の開発2022

    • Author(s)
      藤原 貴生、尹 友
    • Organizer
      The 18th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 人工シナプス素子の高性能化に向けたN-OコドープSb2Te3相変化材料の開発2022

    • Author(s)
      新山 浩司、尹 友
    • Organizer
      2022年春季第69回 応用物理学会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Doped Sb2Te3 Phase-Change Materials for High Performance Artificial Synaptic Device2021

    • Author(s)
      Y. Yin, K. Niiyama, W. Matsuhashi and T. Fujiwara
    • Organizer
      International Conference on Technology and Social Science 2021 (ICTSS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chalcogenides for Their Application to Phase-Change-Memory-Based Synaptic Devices2021

    • Author(s)
      Y. Yin, K. Niiyama, W. Matsuhashi, R. Shirakawa, T. Fujiwara, and K. Sawao
    • Organizer
      2021 IEEE 14th International Conference on ASIC (ASICON 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Finite Element Analysis of Phase-Change Device with Incorporated Nanostructures for Lowering Writing Current2021

    • Author(s)
      R. Shirakawa and Y. Yin
    • Organizer
      International Conference on Technology and Social Science 2021 (ICTSS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural analysis for lowering writing current of phase-change device with nanostructure by finite element method2021

    • Author(s)
      R. Shirakawa and Y. Yin
    • Organizer
      The 4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] N-O co-doped Sb2Te3 chalcogenide memristive material2021

    • Author(s)
      K. Niiyama and Y. Yin
    • Organizer
      The 4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] C-N-codoped Sb2Te3 chalcogenides for high-performance phase-change devices2021

    • Author(s)
      Y. Yin
    • Organizer
      The 4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pulse programming method for phase-change artificial synapse2021

    • Author(s)
      Y. Yin
    • Organizer
      The 4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] N-O Co-Doped Sb2Te3 Chalcogenide for High Performance Artificial Synaptic Device2021

    • Author(s)
      Y. Yin, K. Niiyama and T. Fujiwara
    • Organizer
      34th International Microprocesses and Nanotechnology Conference (MNC 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sb2Te3へのC-Nコドーピングによる相変化デバイス書き込み電流の削減2021

    • Author(s)
      松橋 航、尹 友
    • Organizer
      The 18th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2021 Annual Research Report
  • [Presentation] シナプス素子の高性能化に向けたN-OコドープSb2Te3新相変化材料の開発2021

    • Author(s)
      新山 浩司、尹 友
    • Organizer
      The 18th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 局所的電流密度増強による相変化素子の低動作電流化2021

    • Author(s)
      白川 遼馬、尹 友
    • Organizer
      The 18th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (IEEE TOWERS)
    • Related Report
      2021 Annual Research Report
  • [Presentation] ナノ構造を有する相変化素子の低動作電流化のための有限要素法解析2021

    • Author(s)
      白川 遼馬、尹 友
    • Organizer
      2021年秋季 第82回 応用物理学会学術講演会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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