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Two-terminal resistance change memory based on interface dipole modulation

Research Project

Project/Area Number 19H02178
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Miyata Noriyuki  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究主幹 (40358130)

Co-Investigator(Kenkyū-buntansha) 野平 博司  東京都市大学, 理工学部, 教授 (30241110)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2019: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywords不揮発性メモリ / 界面ダイポール / 抵抗変化メモリ / 酸化膜 / X線励起光電子分光法 / 薄膜成長 / 酸化物エレクトロニクス / 光電子分光 / 電子デバイス / 表面・界面
Outline of Research at the Start

界面ダイポール変調 (IDM: interface dipole modulation) は、本代表者が提案したHfO2/SiO2界面を用いたメモリ機構で、既に三端子フラッシュ型メモリとして動作実証されている。本研究では、新たに提案したIDMを組み込んだ二端子MIM (metal insulator metal) 型の抵抗変化メモリの性能実証とIDMメカニズムの解明を進める。特に、抵抗変化とセレクター用整流作用の両立を目指し、MIM構造および作製プロセス条件の最適化を進める。

Outline of Final Research Achievements

In this study, the interfacial dipole modulation (IDM) phenomenon observed from the oxide/oxide stack structure was applied to a two-terminal metal-insulator-metal (MIM) resistance change device. An MIM device with an HfO2/SiO2/HfO2 stack structure with a 1-MLTiO2 modulation layer was fabricated and the resistance change characteristics were demonstrated. We have also demonstrated that current rectification, which is useful for selector functions, can be achieved with an asymmetric tunnel barrier formed by an asymmetric HfO2/SiO2/HfO2 stack structure. Hard x-ray photoelectron spectroscopy (HAXPES) measurements of the IDM MIM device revealed that the electrostatic potential of the oxide layers and the chemical bonding around the Ti atoms changes by applying voltage.

Academic Significance and Societal Importance of the Research Achievements

界面ダイポール変調(IDM)は、本代表者が提案した独自のメモリ機構で、シリコン半導体デバイスとの材料的親和性の良さが利点であり、実際、Si MOS FETを用いた三端子デバイスとしてのメモリ動作が実証されている。一方、新規メモリの研究としてはクロスバー構造を前提とした二端子型メモリが活発であり、本提案のIDM積層構造による抵抗変化と整流作用を実現できれば、産業応用上のインパクトも高いと期待される。また、IDM変調動作の起源は十分に理解されているとは言い難く、デバイス構造中で起こっている現象を実験的に把握する研究が望まれていた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Electrically induced change in HfO2/1-monolayer TiO2/SiO2 metal-oxide-semiconductor stacks: capacitance-voltage and hard X-ray photoelectron spectroscopy studies2021

    • Author(s)
      Noriyuki Miyata, Kyoko Sumita, Akira Yasui, Ryousuke Sano, Reito Wada, and Hiroshi Nohira
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 7 Pages: 071005-071005

    • DOI

      10.35848/1882-0786/ac0b08

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] HfO2/TiO2/SiO2構造の電圧印加によるTiの化学結合状態変化の観測2022

    • Author(s)
      桐原芳治, 辻口 良太, 伊藤俊一, 保井晃, 宮田典幸, 野平博司
    • Organizer
      電子デバイス界面テクノロジー研究会 ―材料・プロセス・デバイス特性の物理― (第27回研究会)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Hard X-ray Photoemission Spectroscopy Study on Interface Dipole Modulation of HfO2/SiO2 MIM Device2021

    • Author(s)
      Yoshiharu Kirihara, Ryota Tsujiguti, Reito Wada, Akira Yasui, Noriyuki Miyata, Hiroshi Nohir
    • Organizer
      2021 International Conference on Solid State Devices and Materials (SSDM2021)
    • Related Report
      2021 Annual Research Report
  • [Presentation] HAXPESによる界面ダイポール変調発生の確認2021

    • Author(s)
      桐原芳治、辻口良太、保井晃、宮田典幸、野平博司
    • Organizer
      第82回 応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] HAXPESによる界面ダイポール変調機構の解明2021

    • Author(s)
      桐原芳治、和田励虎、辻口良太、保井晃、宮田典、野平博司
    • Organizer
      第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Resistive switching in two-terminal HfO2/SiO2 stack with interface dipole modulation2020

    • Author(s)
      Noriyuki Miyata, Kyoko Sumita, Akira Yasui, Reito Wada, and Hiroshi Nohira
    • Organizer
      2020 International Conference on Solid State Devices and Materials (SSDM2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] STDP-like pulse response characteristics of interface dipole modulation FETs2020

    • Author(s)
      Noriyuki Miyata
    • Organizer
      2020 International Conference on Solid State Devices and Materials (SSDM2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] バイアス印加硬X線光電子分光法によるHfO2/SiO2界面ダイポール変調の検出2020

    • Author(s)
      野平 博司、和田 励虎、保井 晃、宮田 典幸
    • Organizer
      電子デバイス界面テクノロジー研究会 ―材料・プロセス・デバイス特性の物理― (第25回研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Interface dipole modulation in HfO2/SiO2 MOS stack and the analog dynamics2019

    • Author(s)
      Noriyuki Miyata
    • Organizer
      Collaborative Conference on Advanced Materials 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] バイアス印加硬X線光電子分光法によるHfO2/SiO2界面ダイポール変調の評価2019

    • Author(s)
      野平 博司、和田 励虎、保井 晃、宮田 典幸
    • Organizer
      2019年第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of EOT Scaling on Switching Operation of HfO2/SiO2-Based Interface Dipole Modulation FETs2019

    • Author(s)
      Noriyuki Miyata
    • Organizer
      2019 International Workshop on ‘DIELECTRIC THIN FILMS FOR FUTURE ELECTRON DEVICES -SCIENCE AND TECHNOLOGY’-
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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