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Development of finishing methods for creation of atomically flat side-surfaces of three-dimensional nano-devices utilizing defect-site selective reactions

Research Project

Project/Area Number 20H02483
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 InstitutionNara Institute of Science and Technology

Principal Investigator

HATTORI Ken  奈良先端科学技術大学院大学, 先端科学技術研究科, 准教授 (00222216)

Co-Investigator(Kenkyū-buntansha) 服部 梓  大阪大学, 産業科学研究所, 准教授 (80464238)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Keywords三次元立体形状試料 / 表面原子平坦化 / 側壁表面 / ファセット表面 / ウェットプロセス / 走査トンネル顕微鏡 / 電子回折 / 原子平坦 / 三次元デバイス / 走査電子顕微鏡 / 低速電子回折 / 側壁面 / 電子状態 / 磁性
Outline of Research at the Start

パソコンやスマホの性能を決めるトランジスタは年々微細化され、現在のサイズは10 nm台、構造は立体型へと大きく高密度化されている。更に2030年代にはトランジスタが積層した超高密度三次元ナノデバイスの実現が予定されている。
現在の問題点はデバイス側壁面の凹凸が 2~3 nmと大きく、電気抵抗の増大など多くの性能劣化を引き起こしていることである。この解決には側壁面凹凸を原子平坦面にする必要がある。
本研究では、原子平坦化する仕上げのウェットエッチング反応を原子レベルの顕微観察で調べ、この理解に基づいた欠陥サイト選択反応を応用することにより、従来できなかった側壁面原子平坦加工法を開発する。

Outline of Final Research Achievements

Micro-scale three-dimensional silicon samples with atomically flat faceted surfaces (surfaces tilted from the substrate surface) were fabricated from a silicon substrate by lithography and then heating it in a vacuum.
One of the innovations for the atomically flattening is the selection of the solution in the etching process as the final step of the lithography; we promote the etching reaction from specific defect sites that can reduce the roughness of the surface. Another idea is to optimize the vacuum heating conditions to flatten the surface roughness by surface atom diffusion; we found that a temperature lower than a typical heating temperature of 150 to 200℃ is better for finishing the atomic flat surface and maintaining the three-dimensional shape.

Academic Significance and Societal Importance of the Research Achievements

立体形状をもつシリコン・デバイスの精緻な形状制御は、医療用マイクロ流路や加速度センサー等のMEMSデバイス、高密度立体トランジスタなどの最新の立体半導体デバイスなど、多くのテクノロジーを支える基盤技術の1つです。立体形状シリコンの表面は原子精度で平坦とは言えず、最先端のデバイスにおいてはパフォーマンスの劣化を招いていました。本研究の成果は、原子平坦な立体形状シリコンを創り出す技術に直結しており、デバイス・パフォーマンスの向上に寄与するものです。

Report

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

    (43 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (31 results) (of which Int'l Joint Research: 6 results,  Invited: 3 results) Book (1 results) Remarks (3 results)

  • [Int'l Joint Research] Dalian Jiaotong University(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Dalian Jiaotong University(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Dalian Jiaotong University(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Karlsruhe Institute of Technology(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Accessibility of ARPES for Three-dimensionally Architected Si{111}7×7 Facet Surfaces on Micro-patterned Si(110)2022

    • Author(s)
      Hattori Ken、Sakai Yuya、Pamasi Liliany N.、Irmikimov Aydar、Higashi Takaaki、Yang HaoBang、Shi XiaoQian、Guo FangZhun、Osaka Ai I.、Tanaka Hidekazu、Iimori Takushi、Komori Fumio、Hattori Azusa N.
    • Journal Title

      e-Journal of Surface Science and Nanotechnology

      Volume: 20 Issue: 4 Pages: 214-220

    • DOI

      10.1380/ejssnt.2022-038

    • ISSN
      1348-0391
    • Year and Date
      2022-07-28
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Growth of Fe Islands on Clean and Ammonia-saturated Si(111)7 × 7 Surfaces Studied by in situ Electron Diffraction2021

    • Author(s)
      Pamasi Liliany Noviyanty、Nishida Shota、Takemoto Shohei、Hattori Ken
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90 Issue: 3 Pages: 034601-034601

    • DOI

      10.7566/jpsj.90.034601

    • NAID

      210000158850

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atomically Architected Silicon Pyramid Single-Crystalline Structure Supporting Epitaxial Material Growth and Characteristic Magnetism2021

    • Author(s)
      Irmikimov Aydar、Pamasi Liliany N.、Hattori Azusa N.、Higashi Takaaki、Takahashi Shunta、Hashamova Emilia E.、Shi Xiaoqian、Guo Fangzhun、Hosoito Nobuyoshi、Osaka Ai I.、Tanaka Hidekazu、Hattori Ken
    • Journal Title

      Crystal Growth & Design

      Volume: 21 Issue: 2 Pages: 946-953

    • DOI

      10.1021/acs.cgd.0c01286

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spatial Analytical Surface Structure Mapping for Three-dimensional Micro-shaped Si by Micro-beam Reflection High-energy Electron Diffraction2021

    • Author(s)
      Nakatsuka Sohei、Imaizumi Taishi、Abukawa Tadashi、Hattori Azusa N.、Tanaka Hidekazu、Hattori Ken
    • Journal Title

      e-Journal of Surface Science and Nanotechnology

      Volume: 19 Issue: 0 Pages: 13-19

    • DOI

      10.1380/ejssnt.2021.13

    • NAID

      130007995518

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] RHEEDパターンの表面粗さ依存性2023

    • Author(s)
      井田有紀, 北川喜宏, Juharni, 清水智也, 髙橋駿太, 大坂藍, 服部梓, 田中秀和, 桃野浩樹, 服部賢
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] サブマイクロサイズの三次元Si{111}ファセットライン構造の表面制御2023

    • Author(s)
      今山航, 木元康成, Ni'matil Mabarroh, 阪井雄也, 東嵩晃, 服部梓, 大坂藍, 田中秀和, 服部賢
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Photoelectron spectroscopy of artificially designed three-dimensional Si facet-line structures with clean {111} facet surfaces2023

    • Author(s)
      Ni'matil Mabarroh, Juharni, Yuki Ida, Wataru Imayama, Yasunari Kimoto, Yoshihiro Kitagawa, Liliany N. Pamasi, HaoBang Yang, Yuya Sakai, Tomoya Shimizu, Ai I. Osaka, Hidekazu Tanaka, XiaoQian Shi, FangZhun Guo, Kiyohisa Tanaka, Shigemasa Suga, Shin-ichiro Tanaka, Azusa N. Hattori, Ken Hattori
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Magnetic interaction between three-dimensional pyramids with ferromagnetic nano-film2023

    • Author(s)
      Juharni, Liliany N. Pamasi, Nobuyoshi Hosoito, Ni'matil Mabarro, Azusa N. Hattori, Ai I. OsakaA, Hidekazu TanakaA, Satoru Yoshimura, Ken Hattori
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 3次元構造表面の逆格子マッピングのための多軸制御RHEEDシステムの開発2022

    • Author(s)
      井田有紀, 北川喜宏, 清水智也, 髙橋駿太, Pamasi Liliany, 服部 梓, 桃野浩樹, 田中秀和, 服部 賢
    • Organizer
      第8回材料WEEK 「材料シンポジウム」
    • Related Report
      2022 Annual Research Report
  • [Presentation] 原子レベルで平坦な{111}ファセット面をもつ三次元Siライン構造の作製2022

    • Author(s)
      今山 航, 木元康成, 木元康成, 阪井雄也, 東嵩晃, Irmikimov Aydar, 楊浩邦, 服部 梓, 大阪 藍, 田中秀和, 服部 賢
    • Organizer
      第8回材料WEEK 「材料シンポジウム」
    • Related Report
      2022 Annual Research Report
  • [Presentation] Photoelectron spectroscopy of artificially designed three-dimensional Si structures with {111} facet surfaces2022

    • Author(s)
      Ken Hattori, Liliany N. Pamasi, Aydar Irmikimov, Takaaki Higashi, HaoBang Yang, Yuya Sakai, Tomoya Shimizu, Yuki Ida, Wataru Imayama, Juharni Juharni, Ai I. Osaka, Hidekazu Tanaka, XiaoQian Shi, FangZhun Guo, Takuji Iimori, Fumio Komori, Shigemasa Suga, Kiyohisa Tanaka, Shin-ichiro Tanaka, Azusa N. Hattori
    • Organizer
      The 22nd International Vacuum congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ferromagnetic properties induced by artificially designed three-dimensional shapes in Fe nanofilm pattern2022

    • Author(s)
      Liliany N. Pamasi, Juharni juharni, Nobuyoshi Hosoito, Aydar Irmikimov, Takaaki Higashi, Yuya Sakai, Azusa N. Hattori, Ai I. Osaka, Hidekazu Tanaka, Satoru Yoshimura, Ken Hattori
    • Organizer
      The 22nd International Vacuum congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of multiple-axes controlled RHEED system for reciprocal space mapping of three-dimensional structure surfaces2022

    • Author(s)
      Yuki Ida, Tomoya Shimizu, Yoshihiro Kitagawa, Shunta Takahashi, Liliany N. Pamasi, Azusa N. Hattori, Ai I. Osaka, Hidekazu Tanaka, Hiroki Momono, Ken Hattori
    • Organizer
      The 22nd International Vacuum congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Creation of three-dimensional Si lined structures with atomically flat {111} faceted surfaces2022

    • Author(s)
      Wataru Imayama, Yuya Sakai, Takaaki Higashi, Aydar Irmikimov, Haobang Yang, Liliany N. Pamasi, Azusa N. Hattori, Ai I. Osaka, Hidekazu Tanaka, Ken Hattori
    • Organizer
      The 22nd International Vacuum congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Artificially designed three-dimensional shaped surfaces and films in atomic precision: Creation, structure evaluation, and application of unique properties2022

    • Author(s)
      Ken Hattori
    • Organizer
      1st International Conference on Frontier in Sciences (ICFS-2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Modulated three-dimensional ferromagnetic anisotropy of pyramidal shape Fe nanofilms2022

    • Author(s)
      Liliany N Pamasi, Aydar Irmikimov, Yuya Sakai, Tomohiro Shimizua, Haobang Yang, Nobuyoshi Hosoito, Azusa N. Hattori, Ai I. Osaka, Hidekazu Tanaka, and Ken Hattori
    • Organizer
      The 25th SANKEN international symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3次元立体表面上の鉄ナノ薄膜での特異な磁気特性2022

    • Author(s)
      服部 梓、Liliany N. Pamasi、阪井 雄也、Haobang Yang、細 糸 信好、Irmikimov Aydar、東 嵩晃、大坂 藍、田中 秀和、服部 賢
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 原子精度で構造制御した立体形状Si試料からの光電子分光2021

    • Author(s)
      服部 梓、服部 賢、阪井 雄也、Haobang Yang、Aydar. Irmikimov、Liliany. N. Pamasi、東 嵩晃、田中 秀和、飯盛拓嗣、小森文夫
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 立体構造表面の逆空間マップ多軸制御RHEEDシステムの改良2021

    • Author(s)
      清水智也、高橋駿太、Liliany.N.Pamasi、服部梓、田中秀和、桃野浩樹、服部 賢
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ピラミッド構造ファセット面上の鉄ナノ薄膜の立体形状磁性2021

    • Author(s)
      Liliany N. Pamasi、Aydar Irmikimov、阪井雄也、清水智也、Haobang Yang、服部梓、大坂藍、田中秀和、服部 賢
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 3次元立体形状Fe薄膜での特異な磁気特性2021

    • Author(s)
      服部 梓、大坂 藍、田中 秀和、Liliany N. Pamasi、細糸信好、Aydar Irmikimov、東 嵩晃、阪井 雄也、Haobang Yang、服部 賢
    • Organizer
      日本材料学会第7回材料WEEK材料シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 立体Si構造の作製及び立体ファセット表面の原子制御秩序2021

    • Author(s)
      阪井雄也、東嵩晃、Irmikimov Aydar、Haobang Yang、今山航、Pamasi L. Noviyanty、服部梓、大坂藍、田中秀和、服部 賢
    • Organizer
      日本材料学会第7回材料WEEK材料シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 原子制御した立体構造表面でのものづくりと立体形状が織りなす特性2021

    • Author(s)
      服部 賢
    • Organizer
      第8回電子デバイスフォーラム京都
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 多軸制御RHEEDシステムの構築と Si立体構造表面 の逆空間マップ評価法の開発2021

    • Author(s)
      清水 智也、井田 有妃、高橋 駿太、Liliany N. Pamasi、服部 梓、田中 秀和、桃野 浩樹、服部 賢
    • Organizer
      2021年日本表面真空学会 学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Magnetism of epitaxial Fe nanofilms on threedimensionally structuralized Si {111} facet surfaces2021

    • Author(s)
      Liliany N. Pamasi、Irmikimov Aydar、阪井 雄也、清水 智也、Haobang Yang、細糸 信好、服部 梓、大坂 藍、田中 秀和、Ken Hattori
    • Organizer
      2021年日本表面真空学会 学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 原子平坦立体表面をもつマイクロピラミッドシリコンの創成: 立体表面構造分析と特異物性2021

    • Author(s)
      服部 賢
    • Organizer
      第101回(令和3年度第2回) 産研テクノサロン 表面・界面現象の分析技術
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 原子秩序ファセット表面をもつ多様な三次元Si構造の創成2021

    • Author(s)
      東嵩晃、Aydar Irmikimov、楊浩邦、阪井雄也、Emilia E. Hashamova、服部梓、大坂藍、田中秀和、Fangzhun Guo、Xiaoqian Shi、服部 賢
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 多軸制御RHEEDシステムの構築による立体構造任意表面の逆空間マップ評価2021

    • Author(s)
      髙橋駿太、山本幸弘、Liliany N. Pamasi、清水智也、服部梓、田中秀和、桃野浩樹、服部 賢
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Magnetic property of ferromagnetic nanofilms on facet surfaces of three-dimensional structures2021

    • Author(s)
      Liliany N. Pamasi, Aydar Imirkimov, Takaaki Higashi, Shunta Takahashi, Emilia E. Hasamova, Tomoya Shimizu, Nobuyoshi Hosoito, Ai I. Osaka, Azuza N. Hattori, Hidekazu Tanaka, Ken Hattori
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Si(551)基板上に形成されたSi(15 17 3)3x1ファセット表面の表面構造解析2021

    • Author(s)
      青山大晃、内藤完、中塚聡平、小川修一、虻川匡司、江口豊明、服部 賢、服部梓、黒田理人
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ナノビームRHEEDによるSi基板上マイクロ構造の局所表面構造解析2020

    • Author(s)
      中塚 聡平、内藤 完、今泉 太志、虻川 匡司、江口 豊明、服部 梓、田中 秀和、服部 賢
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Si(551)表面のW-RHEEDとSTMによる構造解析2020

    • Author(s)
      内藤 完、中塚 聡平、小川 修一、虻川 匡司、江口 豊明、服部 賢、服部 梓、黒田 理人
    • Organizer
      2020年日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 立体構造における任意方位表面の逆空間マップ評価法の開発:多軸制御RHEEDシステムの構築2020

    • Author(s)
      髙橋 駿太、山本 幸弘、Liliany N. Pamasi、清水 智也、服部 梓、田中 秀和、桃野 浩樹、服部 賢
    • Organizer
      2020年日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 3D Si{111}ピラミッド作製、及び7×7ファセット表面上のナノ薄膜形成2020

    • Author(s)
      東 嵩晃、Aydar Irmikimov、Liliany N. Pamasi、Emilia E. Hashamova、髙橋 駿太、服部 梓、田中 秀和、Fangzhun Guo、Xiaoqian Shi、服部 賢
    • Organizer
      2020年日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] フラッシング加熱によるSi3Dマイクロ構造と表面の構造変化2020

    • Author(s)
      中塚 聡平、内藤 完、今泉 太志、虻川 匡司、江口 豊明、服部 梓、田中 秀和、服部 賢
    • Organizer
      2020年日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Book] Chap. 6. "Creation and evaluation of atomically ordered side- and facet-surface structures of three-dimensional silicon nano-architectures" in "21st Century Surface Science"2020

    • Author(s)
      Azusa N. Hattori and Ken Hattori (eds. by Phuong Pham, Pratibha Goel, Samir Kumar and Kavita Yadav)
    • Publisher
      IntechOpen (London)
    • ISBN
      9781839626401
    • Related Report
      2020 Annual Research Report
  • [Remarks] 研究室紹介

    • URL

      https://mswebs.naist.jp/LABs/surface-material-physics/index.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 研究概要

    • URL

      https://mswebs.naist.jp/LABs/surface-material-physics/project.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 研究業績

    • URL

      https://mswebs.naist.jp/LABs/surface-material-physics/achievement.html

    • 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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