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Multiscale analysis of charging phenomena to reduce the effects of charging in electron beam lithography

Research Project

Project/Area Number 16K06324
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Electron device/Electronic equipment
Research InstitutionOsaka Institute of Technology

Principal Investigator

KOTERA Masatoshi  大阪工業大学, 工学部, 教授 (40170279)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords電子ビームリソグラフィ / 静電気力顕微鏡 / フォギング電子 / 電子散乱のシミュレーション / レジスト無帯電露光条件 / マルチスケール解析 / 帯電現象の解析 / マルチスケール / フォギング電子空間分布測定 / フォギング電子軌道追跡
Outline of Final Research Achievements

Using scanning electron microscope, (1) Measurement of current distribution collected on electrodes placed on the specimen, (2) Measurement of potential distribution on the surface of irradiated insulator using electrostatic force microscope were done. Under the same conditions of the experiment (3) multi-scale analysis of potential distribution in and out of the specimen was done by combining electron scattering simulation and the Poisson's equation based on the charge distribution.
In this study, we found the condition that the specimen did not charge on the scale from local to global in electron beam lithography, under the condition that the beam current was as high as 1.2 nA and the exposure time is as long as 60 seconds, when the electron beam accelerating voltage is 30 kV.

Academic Significance and Societal Importance of the Research Achievements

今後の最先端の半導体集積回路製造における超微細加工を実現するためには電子ビームリソグラフィは不可欠の技術である。ところがリソグラフィーで用いられる最先端レジストの導電率は低く、電子ビーム照射によって帯電する。帯電過程を調査する中で、電子ビームが照射領域の試料を帯電させるだけでなく、試料と試料に対向する対物レンズ電極との間で多重散乱して広がった電子(フォギング電子)による帯電の影響があることが分かった。本研究では実験とシミュレーションによる理論解析の両面から、電子ビームリソグラフィにおけるレジスト膜の無帯電露光条件を探索することを目的とし、上記の解析に基づき当該条件を見出すことができた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (59 results)

All 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (52 results) (of which Int'l Joint Research: 35 results,  Invited: 1 results) Remarks (5 results)

  • [Int'l Joint Research] マギル大学(カナダ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Simulation of fogging electron trajectories in a scanning electron microscope2018

    • Author(s)
      Yuka Ito, Takatoshi Donga, Kentaro Morimoto and Masatoshi Kotera
    • Journal Title

      Proc. SPIE 10810, Photomask Technology

      Volume: 10810 Pages: 10-10

    • DOI

      10.1117/12.2504822

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Simulation of fogging electron trajectories in a scanning electron microscope2018

    • Author(s)
      Yuka Ito, Takatoshi Donga, Kentaro Morimoto, Masatoshi Kotera
    • Organizer
      Photomask Japan 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of the Flare Electron Current in Scanning Electron Microscope2018

    • Author(s)
      Kentaro Morimoto, Yoshifumi Hagiwara, Masatoshi Kotera
    • Organizer
      Photomask Japan 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contribution of flare electrons to produce potential distribution on an insulator film by electron beam irradiation2018

    • Author(s)
      Hideya Mizuno, Shota Nishimura, Masatoshi Kotera
    • Organizer
      Photomask Japan 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flare electrons that cause positive charging by scattering in scanning electron microscope2018

    • Author(s)
      Shota Nishimura, Hideya Mizuno, Masatoshi Kotera
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional trajectory simulation of scattered electrons in scanning electron microscope specimen chamber2018

    • Author(s)
      Yuka Ito, Takatoshi Donga, Kentaro Morimoto, Masatoshi Kotera
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of scattered electron current distribution in scanning electron microscope2018

    • Author(s)
      Kentaro Morimoto, Yuka Ito, Masatoshi Kotera
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time evolution simulation of scattered electrons in scanning electron microscope specimen chamber2018

    • Author(s)
      Takatoshi Donga, Yuka Ito, Masatoshi Kotera
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Positive and negative charge accumulation mechanism generated by electron beam irradiation to insulating specimen2018

    • Author(s)
      Hideya Mizuno, Shota Nishimura, Masatoshi Kotera
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulation of fogging electron trajectories in a scanning electron microscope2018

    • Author(s)
      Yuka Ito, Takatoshi Donga, Kentaro Morimoto, Masatoshi Kotera
    • Organizer
      SPIE Photomask Technology + EUV Lithography 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 電子ビーム照射された絶縁体試料表面電位分布の負バイアス依存性2018

    • Author(s)
      西村将太,水野秀哉,久保建統,小寺正敏
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 同一電界によるフォギング電子のエネルギー分析2018

    • Author(s)
      水野秀哉,西村将太,久保建統,小寺正敏
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] SEM試料室内散乱電子の解析2018

    • Author(s)
      小寺正敏
    • Organizer
      2018 年度 日本顕微鏡学会 SEM の物理学分科会研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Three-Dimensional Trajectory Simulation of Fogging Electrons in Scanning Electron Microscope2018

    • Author(s)
      Yuka Ito, Takatoshi Donga, Kentaro Morimoto, Masatoshi Kotera
    • Organizer
      31st International Microprocesses and Nanotechnology Conference, (MNC2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Energy Analysis of Fogging Electrons by The Same Electric Field2018

    • Author(s)
      Hideya Mizuno, Shota Nishimura, Kento Kubo, Masatoshi Kotera
    • Organizer
      31st International Microprocesses and Nanotechnology Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Energy Analysis of Fogging Electrons in Scanning Electron Microscope2018

    • Author(s)
      Kentaro Morimoto, Takatoshi Donga, Yuka Ito, Masatoshi Kotera
    • Organizer
      31st International Microprocesses and Nanotechnology Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of Non-Charging Condition of Resist in Electon Beam Lithography2018

    • Author(s)
      Shota Nishimura, Hideya Mizuno, Masatoshi Kotera
    • Organizer
      31st International Microprocesses and Nanotechnology Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 走査電子顕微鏡内におけるフォギング電子軌道シミュレーション2017

    • Author(s)
      西野大輝,小寺正敏
    • Organizer
      平成28年度日本材料学会第5回半導体エレクトロニクス部門委員会 第1回講演会・見学会
    • Place of Presentation
      鳥取大学(鳥取県鳥取市)
    • Year and Date
      2017-01-28
    • Related Report
      2016 Research-status Report
  • [Presentation] Simulation of Fogging Electron Trajectories in a Scanning Electron Microscope2017

    • Author(s)
      T. Nishino and M. Kotera
    • Organizer
      Symposium on Surface Science & Nanotechnology -25th Anniversary of SSSJ Kanasi-
    • Place of Presentation
      Kyoto International Community House, Kyoto, Japan
    • Year and Date
      2017-01-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of Fogging Electron Current at the Objective Lens and the Specimen Surface in SEM2017

    • Author(s)
      Y. Hagiwara, T. Noda, M. Kotera and R. Gauvin
    • Organizer
      Symposium on Surface Science & Nanotechnology -25th Anniversary of SSSJ Kanasi-
    • Place of Presentation
      Kyoto International Community House, Kyoto, Japan
    • Year and Date
      2017-01-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Enormous lateral distribution of electrons generated by electron beam in a scanning electron microscope2017

    • Author(s)
      Shota Nishimura, Takuya Kawamoto, Masatoshi Kotera
    • Organizer
      Photomask Japan 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of enormous spatial distribution of scattered electrons in scanning electron microscope2017

    • Author(s)
      Shota Nishimura, Takuya Kawamoto, Hideya Mizuno, Masaki Moriyama, Masatoshi Kotera
    • Organizer
      Microscopy Conference 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Simulation of fogging electron trajectories in Faraday cup2017

    • Author(s)
      Takatoshi Donga, Masatoshi Kotera
    • Organizer
      Atomic Level Characterization 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of the flare electron current distribution with various accelerating voltage in scanning electron microscope2017

    • Author(s)
      Yoshifumi Hagiwara, Kentaro Morimoto, Yuka Ito, Masatoshi Kotera
    • Organizer
      Atomic Level Characterization 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Contribution of flare electrons on enormous large areal positive charging2017

    • Author(s)
      Shota Nishimura,Takuya Kawamoto,Hideaki Mizuno, Masaki Moriyama, Masatoshi Kotera
    • Organizer
      Atomic Level Characterization 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional trajectory simulation of scattered electrons in scanning electron microscope specimen chamber2017

    • Author(s)
      Kazumasa Terada, Yoshifumi Hagiwara, Masatoshi Kotera
    • Organizer
      Atomic Level Characterization 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 走査電子顕微鏡内におけるフレア電子の電流分布測定2017

    • Author(s)
      萩原佳史, 森本健太郎, 伊藤優花,小寺正敏
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 査電子顕微鏡試料室における散乱電子の三次元軌道のシミュレーション2017

    • Author(s)
      寺田一真,萩原佳史,小寺正敏
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 電子ビーム照射付近から遠方で正帯電を引き起こすフレア電子について2017

    • Author(s)
      西村将太,河本拓也,小寺正敏
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] ファラデーカップ設計のための電子散乱シミュレーション2017

    • Author(s)
      頓花貴俊,伊藤優花,小寺正敏
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 走査電子顕微鏡内のフォギング電子軌道のシミュレーション2016

    • Author(s)
      西野大輝,小寺正敏
    • Organizer
      日本顕微鏡学会第59回シンポジウム
    • Place of Presentation
      帝京平成大学池袋キャンパス(東京都豊島区)
    • Year and Date
      2016-11-18
    • Related Report
      2016 Research-status Report
  • [Presentation] 走査電子顕微鏡内のフォギング電流測定2016

    • Author(s)
      野田 拓,小寺正敏
    • Organizer
      日本顕微鏡学会 「SEMの物理学」分科会討論会
    • Place of Presentation
      鞆シーサイドホテル(広島県福山市)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 走査電子顕微鏡内のフォギング電子軌道のシミュレーション2016

    • Author(s)
      西野大輝,小寺正敏
    • Organizer
      日本顕微鏡学会 「SEMの物理学」分科会討論会
    • Place of Presentation
      鞆シーサイドホテル(広島県福山市)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 電子ビーム照射による試料表面電位と電荷蓄積のシミュレーション2016

    • Author(s)
      福澤諒大,小寺正敏
    • Organizer
      日本顕微鏡学会 「SEMの物理学」分科会討論会
    • Place of Presentation
      鞆シーサイドホテル(広島県福山市)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 電子ビーム照射された絶縁体試料表面電位分布のワーキングディスタンスと印加バイアス依存性2016

    • Author(s)
      東海昌司,小寺正敏
    • Organizer
      日本顕微鏡学会 「SEMの物理学」分科会討論会
    • Place of Presentation
      鞆シーサイドホテル(広島県福山市)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Measurement of Fogging Electron Current for Various Beam Energies at Acceleration Bias in Scanning Electron Microscope2016

    • Author(s)
      Yoshifumi Hagiwara, Taku Noda, Masatoshi Kotera
    • Organizer
      29th International Microprocesses and Nanotechnology Conference, (MNC2016)
    • Place of Presentation
      ANA Crowne Plaza Kyoto, Kyoto, Japan
    • Year and Date
      2016-11-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Simulation of Charging Process of PMMA Film on Si Substrate under Electron Beam Irradiation2016

    • Author(s)
      Akihiro Fukuzawa, Masatoshi Kotera
    • Organizer
      29th International Microprocesses and Nanotechnology Conference, (MNC2016)
    • Place of Presentation
      ANA Crowne Plaza Kyoto, Kyoto, Japan
    • Year and Date
      2016-11-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Surface Potential Distribution of a Resist Film Irradiated by Electron Beam under Acceleration Bias2016

    • Author(s)
      Masashi Toukai, Takuya Kawamoto, Masatoshi Kotera
    • Organizer
      29th International Microprocesses and Nanotechnology Conference, (MNC2016)
    • Place of Presentation
      ANA Crowne Plaza Kyoto, Kyoto, Japan
    • Year and Date
      2016-11-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of Fogging Electron Current at a Specimen Surface in Scanning Electron Microscope2016

    • Author(s)
      Taku Noda, Yoshifumi Hagiwara, Masatoshi Kotera
    • Organizer
      29th International Microprocesses and Nanotechnology Conference, (MNC2016)
    • Place of Presentation
      ANA Crowne Plaza Kyoto, Kyoto, Japan
    • Year and Date
      2016-11-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of a Simulation of Fogging Electron Trajectories in a Scanning Electron Microscope2016

    • Author(s)
      Taiki Nishino, Kazumasa Terada, Masatoshi Kotera
    • Organizer
      29th International Microprocesses and Nanotechnology Conference, (MNC2016)
    • Place of Presentation
      ANA Crowne Plaza Kyoto, Kyoto, Japan
    • Year and Date
      2016-11-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dependence of fogging electron current on the collection field2016

    • Author(s)
      Yoshifumi Hagiwara, Taku Noda, Masatoshi Kotera, Raynald Gauvin
    • Organizer
      42nd International Conference on Micro and Nano Engineering, (MNE2016)
    • Place of Presentation
      Congress Center, Vienna, Austria
    • Year and Date
      2016-09-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dependence of the working distance and the applied bias on the surface potential distribution of insulating specimen irradiated by electron beam2016

    • Author(s)
      Takuya Kawamoto, Masashi Tokai, Shota Nishimura, Tatsuya Toyama, Masatoshi Kotera
    • Organizer
      42nd International Conference on Micro and Nano Engineering, (MNE2016)
    • Place of Presentation
      Congress Center, Vienna, Austria
    • Year and Date
      2016-09-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of trajectory simulation of fogging electrons in a vacuum specimen chamber2016

    • Author(s)
      Kazumasa Terada1, Taiki Nishino, Taku Noda, Masatoshi Kotera
    • Organizer
      42nd International Conference on Micro and Nano Engineering, (MNE2016)
    • Place of Presentation
      Congress Center, Vienna, Austria
    • Year and Date
      2016-09-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 走査電子顕微鏡内におけるフォギング電子の加速電圧変化2016

    • Author(s)
      萩原佳史,野田 拓,小寺正敏,Raynald Gauvin
    • Organizer
      第77回応用物理学会学術講演会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 電子ビーム照射された絶縁体試料表面電位分布のワーキングディスタンスと印加バイアス依存性2016

    • Author(s)
      東海昌司,河本拓也,小寺正敏
    • Organizer
      第77回応用物理学会学術講演会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 電子ビーム照射による試料表面電位と電荷蓄積のシミュレーション2016

    • Author(s)
      福澤諒大,小寺正敏
    • Organizer
      第77回応用物理学会学術講演会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] EB照射後の絶縁体試料表面電位のワーキングディスタンスと印加バイアス依存性2016

    • Author(s)
      東海昌司,河本拓也,小寺正敏
    • Organizer
      日本顕微鏡学会第72回学術講演会
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2016-06-15
    • Related Report
      2016 Research-status Report
  • [Presentation] Measurement of fogging electron current in scanning electron microscope2016

    • Author(s)
      Yoshifumi Hagiwara, Taku Noda, Masatoshi Kotera, Raynald Gauvin
    • Organizer
      11th Asia-Pacific Microscopy Conference, (APMC11)
    • Place of Presentation
      Graceland, Phuket, Thailand
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dependence of the working distance and the applied bias on the surface potential distribution of insulating specimen irradiated by electron beam2016

    • Author(s)
      Takuya Kawamoto, Masashi Tokai, Masatoshi Kotera
    • Organizer
      11th Asia-Pacific Microscopy Conference, (APMC11)
    • Place of Presentation
      Graceland, Phuket, Thailand
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of trajectory simulation of fogging electrons in a vacuum specimen chamber2016

    • Author(s)
      Kazumasa Terada1, Taiki Nishino, Taku Noda, Masatoshi Kotera
    • Organizer
      11th Asia-Pacific Microscopy Conference, (APMC11)
    • Place of Presentation
      Graceland, Phuket, Thailand
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Simulation of Three-dimensional Electron Charge distribution of PMMA film on Si substrate by electron beam irradiation2016

    • Author(s)
      Akihiro Fukuzawa, Masatoshi Kotera
    • Organizer
      Photomask Japan 2016
    • Place of Presentation
      Pacifico Yokohama, Yokohama, Japan
    • Year and Date
      2016-04-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dependence of the working distance and the applied bias on the surface potential distribution of insulating specimen irradiated by electron beam2016

    • Author(s)
      Masashi Toukai, Takuya Kawamoto, Masatoshi Kotera
    • Organizer
      Photomask Japan 2016
    • Place of Presentation
      Pacifico Yokohama, Yokohama, Japan
    • Year and Date
      2016-04-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of fogging electrons in scanning electron microscope2016

    • Author(s)
      Yoshifumi Hagiwara, Taku Noda, Masatoshi Kotera, Raynald Gauvin
    • Organizer
      Photomask Japan 2016
    • Place of Presentation
      Pacifico Yokohama, Yokohama, Japan
    • Year and Date
      2016-04-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 学術雑誌発表論文

    • URL

      http://www.oit.ac.jp/elc/~kotera/paper/paper.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 最近の国際会議発表

    • URL

      http://www.oit.ac.jp/elc/~kotera/paper/international.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 最近の国内会議発表

    • URL

      http://www.oit.ac.jp/elc/~kotera/paper/domestic.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 国際会議

    • URL

      http://www.oit.ac.jp/elc/~kotera/paper/international.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report
  • [Remarks] 国内学会

    • URL

      http://www.oit.ac.jp/elc/~kotera/paper/domestic.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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