• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The relationship between the chemical composition distribution in resist thin films and the pattern linewidth roughness

Research Project

Project/Area Number 21K14212
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionUniversity of Hyogo

Principal Investigator

Yamakawa Shinji  兵庫県立大学, 高度産業科学技術研究所, 助教 (90876252)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsEUVリソグラフィ / フォトレジスト / 軟X線共鳴散乱 / 線幅ばらつき / EUV干渉露光 / EUVフラッド露光 / 現像速度 / 高分子合成 / 接触角測定 / XANES / 半導体微細加工 / 軟X線 / LWR
Outline of Research at the Start

極端紫外線(EUV)リソグラフィにおいて、10 nm以下の露光後パタンにおける線幅ばらつきを1 nm以下に抑制する必要がある。いくつか考慮される要因のうち、フォトレジスト薄膜中の化学組成分布の影響についても指摘されていた。近年、薄膜中の化学組成分布がミクロスケールで不均一であると実験的に解明されつつあるが、パタン形成後の線幅粗さに与える影響に関する理解には至っていない。本研究では、既存のレジストおよび合成した新規レジストについてレジスト薄膜中の化学組成分布を調査し、続く露光後パタンの線幅粗さ評価までを一貫して行う。これらを通じて、レジストの構成成分が線幅粗さに与える影響の解明を目指す。

Outline of Final Research Achievements

The most critical issue for EUV resists is to suppress the linewidth roughness of the resist after patterning. It is considered that the key role is the uniformity of the chemical composition distribution in resist thin films. However, the relationship between the chemical composition distribution in resist thin films and the linewidth roughness after patterning has not been clarified. In this study, we evaluated the chemical composition distribution of model resists by contact angle measurement and soft X-ray analysis. As a result, it has been clarified that the polarity difference of the chemical composition in the resist affects the chemical composition distribution. Furthermore, the L/S patterning showed that the linewidth roughness is affected by the chemical composition distribution and the developer.

Academic Significance and Societal Importance of the Research Achievements

半導体の性能向上にはフォトレジストの性能向上が必須である。本研究ではフォトレジストの化学組成分布評価からパターニング評価までを包括的に検討した。線幅ばらつきの抑制は、化学組成分布を単純に均一にすればよいという話ではなく、どのような凝集構造が現像液とどう相互作用するのかも含めて考える必要があることを指摘した。低線幅ばらつきを指向するフォトレジスト開発指針につながるため、社会的な意義が大きい。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (30 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (23 results) (of which Int'l Joint Research: 13 results)

  • [Journal Article] Spatial Distribution Analysis of Polymers in Resist Thin Film by Reflection-mode Resonant Soft X-ray Scattering2023

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

      Journal of Photopolymer Science and Technology

      Volume: 36 Issue: 1 Pages: 41-45

    • DOI

      10.2494/photopolymer.36.41

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2023-06-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spatial Distribution Imaging of Resist Thin Film with Micrometer Resolution using Reflection Type Soft X-ray Projection Microscope2023

    • Author(s)
      Iguchi Shuhei、Harada Tetsuo、Yamakawa Shinji、Watanabe Takeo、Motokawa Takeharu
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 36 Issue: 1 Pages: 25-30

    • DOI

      10.2494/photopolymer.36.25

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2023-06-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Present Status of EUV Interference Lithography at NewSUBARU2023

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

      Journal of Photopolymer Science and Technology

      Volume: 36 Issue: 1 Pages: 53-59

    • DOI

      10.2494/photopolymer.36.53

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2023-06-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of Photoacid Generator Bound Resist with X-ray Absorption Spectroscopy at NewSUBARU2023

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

      Journal of Photopolymer Science and Technology

      Volume: 36 Issue: 1 Pages: 47-52

    • DOI

      10.2494/photopolymer.36.47

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2023-06-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The x-ray absorption spectroscopy analysis of the negative-tone PAG bound resist2023

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

      Proceedings of SPIE

      Volume: 12750 Pages: 60-60

    • DOI

      10.1117/12.2687118

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Grazing-Incidence Soft-X-ray Scattering for the Chemical Structure Size Distribution Analysis in EUV Resist2022

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

      Journal of Photopolymer Science and Technology

      Volume: 35 Issue: 1 Pages: 61-65

    • DOI

      10.2494/photopolymer.35.61

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2022-12-16
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Affinity Analysis of Photoacid Generator in the Thin Film of Chemical Amplification Resist by Contact Angle Measurement2021

    • Author(s)
      Yamakawa Shinji、Yamamoto Ako、Yasui Seiji、Watanabe Takeo、Harada Tetsuo
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 34 Issue: 1 Pages: 111-115

    • DOI

      10.2494/photopolymer.34.111

    • NAID

      130008119653

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2021-06-11
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] レジスト材料の空間分布測定を目的とした反射型拡大投影軟X 線顕微鏡の開発2024

    • Author(s)
      井口 脩平、原田 哲男、山川 進二、渡邊 健夫
    • Organizer
      ニュースバルシンポジウム2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] 軟X 線反射型共鳴散乱法によるEUV レジスト薄膜中の構成物の空間分布評価2024

    • Author(s)
      中本 敦啓、山川 進二、原田 哲男、渡邊 健夫
    • Organizer
      ニュースバルシンポジウム2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光電子顕微鏡を用いたレジスト薄膜表面の化学組成分布の観察2024

    • Author(s)
      笹倉 司、山川 進二、原田 哲男、渡邊 健夫
    • Organizer
      ニュースバルシンポジウム2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] Spatial Distribution Analysis of Polymers in Resist Thin Film by Reflection-mode Resonant Soft X-ray Scattering2023

    • Author(s)
      Nakamoto Atsunori、Yamakawa Shinji、Harada Tetsuo、Watanabe Takeo
    • Organizer
      The 40th International Conference of Photopolymer Science and Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial Distribution Imaging of Resist Thin Film with Micrometer Resolution using Reflection Type Soft X-ray Projection Microscope2023

    • Author(s)
      Iguchi Shuhei、Harada Tetsuo、Yamakawa Shinji、Watanabe Takeo、Motokawa Takeharu
    • Organizer
      The 40th International Conference of Photopolymer Science and Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Present Status of EUV Interference Lithography at NewSUBARU2023

    • Author(s)
      Imai Rikuya、Yamakawa Shinji、Harada Tetsuo、Watanabe Takeo
    • Organizer
      The 40th International Conference of Photopolymer Science and Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of Photoacid Generator Bound Resist with X-ray Absorption Spectroscopy at NewSUBARU2023

    • Author(s)
      Yamakawa Shinji、Harada Tetsuo、Nakanishi Koji、Watanabe Takeo
    • Organizer
      The 40th International Conference of Photopolymer Science and Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial Distribution Imaging of Resist Thin Film with Micrometer Resolution using Reflection Type Soft X-ray Projection Microscope2023

    • Author(s)
      Iguchi Shuhei、Yamakawa Shinji、Harada Tetsuo、Watanabe Takeo
    • Organizer
      NGL Workshop 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chemical Imaging of Resist Thin-Film Surface using PEEM at NewSUBARU2023

    • Author(s)
      Tsukasa Sasakura, Shinji Yamakawa, Tetsuo Harada, Takeo Watanabe
    • Organizer
      NGL Workshop 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of the Chemical Component Distribution in EUV Resist Thin Films by Soft X-Ray2023

    • Author(s)
      Shinji Yamakawa, Atsunori Nakamoto, Shuhei Iguchi, Tsukasa Sasakura, Tetsuo Harada, Takeo Watanabe
    • Organizer
      The 13th SPSJ International Polymer Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of the Chemical Component Distribution in Resist Thin Film by Grazing Incidence Resonant Soft X-ray Scattering2023

    • Author(s)
      Atsunori Nakamoto, Shinji Yamakawa, Tetsuo Harada, Takeo Watanabe
    • Organizer
      The 13th SPSJ International Polymer Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial Distribution Evaluation of EUV Resist Using Reflection-type Projection Soft X-Ray Microscope2023

    • Author(s)
      Shuhei Iguchi, Tetsuo Harada, Shinji Yamakawa, Takeo Watanabe
    • Organizer
      The 13th SPSJ International Polymer Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of the Chemical Imaging of Resist Thin Films by Photoemission Electron Microscopy at NewSUBARU2023

    • Author(s)
      Tsukasa Sasakura, Shinji Yamakawa, Tetsuo Harada, Takeo Watanabe
    • Organizer
      The 13th SPSJ International Polymer Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The x-ray absorption spectroscopy analysis of the negative-tone PAG bound resist2023

    • Author(s)
      Yamakawa Shinji、Harada Tetsuo、Watanabe Takeo
    • Organizer
      International Conference on Extreme Ultraviolet Lithography 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 軟X線反射型共鳴散乱法を用いたレジスト薄膜中における化学組成の空間分布評価2023

    • Author(s)
      中本敦啓、山川進二、原田哲男、渡邊健夫
    • Organizer
      ニュースバルシンポジウム2023
    • Related Report
      2022 Research-status Report
  • [Presentation] EUV干渉露光系の高度化の検討2023

    • Author(s)
      今井陸陽、山川進二、原田哲男、渡邊健夫
    • Organizer
      ニュースバルシンポジウム2023
    • Related Report
      2022 Research-status Report
  • [Presentation] Grazing-Incidence Soft-X-ray Scattering for the Chemical Structure Size Distribution Analysis in EUV Resist2022

    • Author(s)
      Nakamoto Atsunori、Yamakawa Shinji、Harada Tetsuo、Watanabe Takeo
    • Organizer
      The 39th International Conference of Photopolymer Science and Technology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] レジスト薄膜中の空間分布測定用軟X線反射型共鳴散乱法の検討2022

    • Author(s)
      中本敦啓、山川進二、原田哲男、渡邊健夫
    • Organizer
      NGLワークショップ2022
    • Related Report
      2022 Research-status Report
  • [Presentation] 斜入射軟X線共鳴散乱を用いたレジスト薄膜中の化学構成材の空間分布測定2022

    • Author(s)
      中本敦啓、山川進二、原田哲男、渡邊健夫
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] レジスト薄膜中の空間分布測定を目的とした軟X線反射型共鳴散乱の検討2022

    • Author(s)
      中本敦啓、山川進二、原田哲男、渡邊健夫
    • Organizer
      第58回X線分析討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Affinity Analysis of Photoacid Generator in the Thin Film of Chemical Amplification Resist by Contact Angle Measurement2021

    • Author(s)
      Shinji Yamakawa, Ako Yamamoto, Seiji Yasui, Takeo Watanabe, Tetsuo Harada
    • Organizer
      The 38th International Conference of Photopolymer Science and Technology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 化学増幅レジスト薄膜中の化学構成物の空間分布解析絵の検討2021

    • Author(s)
      山川進二、原田哲男、渡邊健夫
    • Organizer
      NGLワークショップ2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 化学増幅型レジスト薄膜における光酸発生剤の組成分布およびレジスト特性評価2021

    • Author(s)
      山川進二、原田哲男、渡邊健夫
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi