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Design of sp-bonds in functional BN films by arc discharge with independent parameter control

Research Project

Project/Area Number 20H02481
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionKyoto University

Principal Investigator

Eriguchi Koji  京都大学, 工学研究科, 教授 (70419448)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2022: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywords窒化ホウ素 / プラズマ / 結合状態 / 光学特性 / 電気特性 / 高密度プラズマ / トンネルリーク電流 / イオンエネルギー / フラックス / エネルギー / 誘電率
Outline of Research at the Start

窒化ホウ素膜(BN)は炭素に比べ化学安定で,多様な次元(2D,3D)構造を取りうる元素系であり,様々な極限環境や電子デバイスへの応用が期待されている重要な学術的かつ工学的対象である.本研究では,実用に耐えうるBN膜の2D,3D構造制御技術の確立を目指す.具体的には,これまで開発してきた反応性プラズマ(RePAC)をプラットフォームにし,安定したBN膜2D,3D構造制御技術の実現を目指す.イオンエネルギー・フラックス分離制御型アーク放電プラズマ源(2G-RePAC)を新規に設計し,局所的なsp2-sp3結合が最適化された高品質BN成膜技術の構築を目指す.

Outline of Final Research Achievements

This study focuses on designing functional BN films with various sp2-sp3 bonding network using reactive plasma-assisted coating (RePAC) method where process parameters (e.g. the energy and flux of incident ions) are independently controlled. Stable BN/Si structures were fabricated with anti-delamination feature. It was found that the extinction coefficient and tunneling leakage current strongly depends on the sp2-sp3 bonding phase. Time evolution of leakage current under constant voltage stress indicated characteristic electron trapping in the BN films. These findings imply that the RePAC system is one of the promising methods which realize functional BN films.

Academic Significance and Societal Importance of the Research Achievements

様々な機能材料の高信頼性化には,材料中の原子間結合の制御が重要な工学的課題である.窒化ホウ素(BN)膜は,2Dから3D構造を取りうる特異な材料であるが,未だ幅広い工学的応用には至っていない.本研究では,高密度プラズマ源のプロセスパラメータの独立制御により,様々なsp2-sp3結合相比を有するBN膜形成を実現し,ナノネットワーク構造と光学特性(消衰係数)やトンネルリーク電流との相関解明を進めた.その結果,従来の機械特性に加え,sp2-sp3結合相比に応じて光学特性やトンネルリーク電流が制御できることが明らかになった.この事実は,将来の機能性BN膜実現に寄与する重要な知見である.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (13 results)

All 2023 2022 2021 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Ion irradiation-induced sputtering and surface modification of BN films prepared by a reactive plasma-assisted coating technique2022

    • Author(s)
      Takayuki Matsuda, Takashi Hamano, Yuya Asamoto, Masao Noma, Michiru Yamashita, Shigehiko Hasegawa, Keiichiro Urabe, and Koji Eriguchi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SI Pages: SI1014-SI1014

    • DOI

      10.35848/1347-4065/ac5d16

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spectroscopic ellipsometry characterization of boron nitride films synthesized by a reactive plasma-assisted coating method2022

    • Author(s)
      Takashi Hamano, Takayuki Matsuda, Yuya Asamoto, Masao Noma, Shigehiko Hasegawa, Michiru Yamashita, Keiichiro Urabe, and Koji Eriguchi
    • Journal Title

      Applied Physics Letters

      Volume: 120 Issue: 3 Pages: 031904-031904

    • DOI

      10.1063/5.0077147

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] ナノネットワーク構造解析に基づく微細トレンチ内の窒化ホウ素膜特性予測2023

    • Author(s)
      濱野誉,松田崇行,朝本雄也,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 反応性プラズマ支援成膜法による窒化ホウ素膜のナノネットワーク構造制御2023

    • Author(s)
      濱野誉,松田崇行,朝本雄也,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      応用物理学会シリコンテクノロジー分科会 第242回研究集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Characterization of nano-network structure transition of boron nitride films by ion irradiation during the film growth2022

    • Author(s)
      T. Hamano, T. Matsuda, Y. Asamoto, M. Noma, S. Hasegawa, M. Yamashita, K. Urabe, and K. Eriguchi
    • Organizer
      43rd International Symposium on Dry Process: DPS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 結合状態を制御した窒化ホウ素膜の高速堆積に向けた窒素ラジカルフラックス最大化に関する研究2022

    • Author(s)
      朝本雄也,濱野誉,松田崇行,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 電気伝導機構解析による窒化ホウ素膜/Si構造の剥離機構の検討2022

    • Author(s)
      松田崇行,濱野誉,朝本雄也,野間正男,山下満,長谷川繁彦,占部継一郎,江利口浩二
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] sp結合ナノネットワーク構造変化に起因する窒化ホウ素膜特性遷移の解析2022

    • Author(s)
      濱野誉,松田崇行,朝本雄也,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 熱電子供給型真空アーク放電の放電電流決定機構に基づくプロセス制御(II)2022

    • Author(s)
      朝本雄也,松田崇行,濱野誉,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Characterization of carrier conduction in a magnetically-confined vacuum arc discharge and its application to control of incident-ion flux to a substrate2021

    • Author(s)
      Y. Asamoto, T. Matsuda, T. Hamano, M. Noma, S. Hasegawa, M. Yamashita K. Urabe, and K. Eriguchi
    • Organizer
      42nd International Symposium on Dry Process: DPS2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Controlling of nano-network structures in BN films by a reactive plasma assisted-coating technique and the sputtering characteristics against plasma exposure2021

    • Author(s)
      T. Matsuda, T. Hamano, Y. Asamoto, M. Noma, S. Hasegawa, M. Yamashita K. Urabe, and K. Eriguchi
    • Organizer
      42nd International Symposium on Dry Process: DPS2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 反応性プラズマ支援成膜法に用いる熱電子供給型アーク放電の発光分光法を用いた電離機構解析2021

    • Author(s)
      朝本雄也,松田崇行,濱野誉,野間正男,長谷川繁彦,山下満,占部継一郎,江利口浩二
    • Organizer
      第38回プラズマプロセシング研究会/第33回プラズマ材料科学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Remarks] 京都大学 航空宇宙工学専攻 推進工学分野(江利口研)

    • URL

      http://www.propulsion.kuaero.kyoto-u.ac.jp/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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