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Spatial Distribution Analysis of Photo Resist Using Resonant Soft X-ray Reflectmetry and Scattering methods

Research Project

Project/Area Number 19K12644
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionUniversity of Hyogo

Principal Investigator

Harada Tetsuo  兵庫県立大学, 高度産業科学技術研究所, 准教授 (30451636)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsフォトレジスト / 軟X線共鳴散乱 / 軟X線共鳴反射率 / EUVリソグラフィー / 軟X線 / 共鳴軟X線散乱 / 共鳴軟X線反射率 / 軟X線CMOSカメラ
Outline of Research at the Start

高性能フォトレジスト開発には、従来の現像後のレジストパタン評価による定性的に評価ではなく、露光による酸生成やベークプロセスにおける定量的な評価が必要である。本研究ではレジスト中の官能基のばらつきを共鳴軟X線散乱で測定する。軽元素吸収端(共鳴X線)領域で測定することで化学結合・反応状態によるコントラストを得られるため、従来観察出来なかった官能基毎のばらつきを評価できる。

Outline of Final Research Achievements

Spatial distribution of functional group in photoresist is required to control to achieve high performance semiconductor device. We have developed resonant soft X-ray reflectometry and scattering method to measure the spatial distribution. Using the reflectometry at the carbon K absorption edge region, the resist had separated layers at the surface side and the bottom side of the substrate. Using the scattering method of conventional transmission mode, the spatial distribution were evaluated with the resist on thin membrane. In addition, we have developed reflection mode method for measure the resist sample on the Si wafer. The spatial distribution were strongly depended on the film thickness, which should be reduce even at the thin resist for high density patterning.

Academic Significance and Societal Importance of the Research Achievements

半導体は基幹産業であるだけでなく、その性能向上は将来のSDGsやDXやグリーンイノベーションなどにも欠かせない。本研究では半導体性能向上に直接つながるフォトレジストの性能を評価するための測定手法の開発に成功した。従来技術では軽元素により構成されているフォトレジストの官能基のばらつきなどは評価が難しかったが、軟X線の共鳴ピークを利用した反射率と散乱測定により、深さ方向と面内方向の3次元的な分布を明らかにすることができた。この評価技術を材料メーカーに利用してもらうことにより、半導体の性能向上に直接つながるため社会的な意義が大きい。

Report

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

    (17 results)

All 2021 2020 2019

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Fundamental Evaluation of Resist on EUV Lithography at NewSUBARU Synchrotron Light Facility2021

    • Author(s)
      Watanabe Takeo、Harada Tetsuo、Yamakawa Shinji
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 34 Issue: 1 Pages: 49-53

    • DOI

      10.2494/photopolymer.34.49

    • NAID

      130008119687

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2021-06-11
    • Related Report
      2021 Annual Research Report
  • [Journal Article] Fundamental research activities on EUV lithography at NewSUBARU synchrotron light facility2021

    • Author(s)
      Watanabe Takeo、Harada T.、Yamakawa S.
    • Journal Title

      SPIE Proc.

      Volume: 11908 Pages: 1190807-1190807

    • DOI

      10.1117/12.2600896

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Analysis of Chemical Contents Spatial Distribution in EUV Resist Using Resonant Soft X-ray Scattering Method2020

    • Author(s)
      Tanaka Jun、Ishiguro Takuma、Harada Tetsuo、Watanabe Takeo
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 33 Issue: 5 Pages: 491-498

    • DOI

      10.2494/photopolymer.33.491

    • NAID

      130007867617

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2020-07-01
    • Related Report
      2020 Research-status Report
  • [Journal Article] Removal of Surface Contamination by Atomic Hydrogen Annealing2020

    • Author(s)
      Heya Akira、Harada Tetsuo、Niibe Masahito、Sumitomo Koji、Watanabe Takeo
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 33 Issue: 4 Pages: 419-426

    • DOI

      10.2494/photopolymer.33.419

    • NAID

      130007867645

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2020-07-01
    • Related Report
      2020 Research-status Report
  • [Journal Article] Resonant Soft X-ray Reflectivity for the Chemical Analysis in Thickness Direction of EUV Resist2019

    • Author(s)
      Ishiguro Takuma、Tanaka Jun、Harada Tetsuo、Watanabe Takeo
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 32 Issue: 2 Pages: 333-337

    • DOI

      10.2494/photopolymer.32.333

    • NAID

      130007744336

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2019-06-24
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resonant Soft X-ray Scattering for the Stochastic Origin Analysis in EUV Resist2019

    • Author(s)
      Tanaka Jun、Ishiguro Takuma、Harada Tetsuo、Watanabe Takeo
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 32 Issue: 2 Pages: 327-331

    • DOI

      10.2494/photopolymer.32.327

    • NAID

      130007744334

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2019-06-24
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Energy- and spatial-resolved detection using a backside-illuminated CMOS sensor in the soft X-ray region2019

    • Author(s)
      Harada Tetsuo、Teranishi Nobukazu、Watanabe Takeo、Zhou Quan、Yang Xiao、Bogaerts Jan、Wang Xinyang
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 8 Pages: 082012-082012

    • DOI

      10.7567/1882-0786/ab32d2

    • NAID

      210000156726

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-exposure-durability, high-quantum-efficiency (>90%) backside-illuminated soft-X-ray CMOS sensor2019

    • Author(s)
      Harada Tetsuo、Teranishi Nobukazu、Watanabe Takeo、Zhou Quan、Bogaerts Jan、Wang Xinyang
    • Journal Title

      Applied Physics Express

      Volume: 13 Issue: 1 Pages: 016502-016502

    • DOI

      10.7567/1882-0786/ab5b5e

    • NAID

      210000157655

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Analysis of Chemical Contents Spatial Distribution in EUV Resist Using Resonant Soft X-ray Scattering Method2020

    • Author(s)
      Tanaka Jun、Ishiguro Takuma、Harada Tetsuo、Watanabe Takeo
    • Organizer
      The 37th International Conference of Photopolymer Science and Technology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Removal of Surface Contamination by Atomic Hydrogen Annealing2020

    • Author(s)
      Heya Akira、Harada Tetsuo、Niibe Masahito、Sumitomo Koji、Watanabe Takeo
    • Organizer
      The 37th International Conference of Photopolymer Science and Technology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 軟X線共鳴散乱・反射率法による有機材料の構造解析2020

    • Author(s)
      原田哲男、山川進二、渡邊健夫
    • Organizer
      SPring-8産業利用報告会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 軟X線共鳴反射率(・散乱)法によるフォトレジスト研究2020

    • Author(s)
      原田哲男
    • Organizer
      東北大学多元物質科学研究所 高分子・ハイブリッド材料研究センター 2020 PHyM シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 軟X線共鳴反射率法による単層レジストプロセス用フォトレジストの相分離構造評価2020

    • Author(s)
      石黒 巧真、田中 淳、原田 哲男、渡邊 健夫
    • Organizer
      第33回日本放射光学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 軟X線共鳴散乱法を用いたフォトレジスト評価手法の検討2020

    • Author(s)
      田中淳、石黒巧真、原田哲男、渡邊健夫
    • Organizer
      第33回日本放射光学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 軟X線領域において量子効率90%以上の性能を有する背面照射型CMOSイメージセンサの開発2020

    • Author(s)
      原田哲男, 寺西信一, 渡邊健夫, Quan Zhou, Jan Bogaerts, and Xinyang Wang
    • Organizer
      第33回日本放射光学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Resonant Soft X-ray Scattering for the Stochastic Origin Analysis in EUV Resist2019

    • Author(s)
      7.Jun Tanaka, Takuma Ishiguro, Tetsuo Harada, and Takeo Watanabe
    • Organizer
      ICPST36
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Resonant Soft X-ray Reflectivity for the Chemical Analysis in Thickness Direction of EUV Resist2019

    • Author(s)
      6.Takuma Ishiguro, Jun Tanaka, Tetsuo Harada, and Takeo Watanabe
    • Organizer
      ICPST36
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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

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