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Development of a compact coating device that turns any vacuum device into a getter pump and elucidation of its pumping mechanism

Research Project

Project/Area Number 21K04891
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 29020:Thin film/surface and interfacial physical properties-related
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

Tanimoto Yasunori  大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 教授 (60311130)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords超高真空 / 非蒸発型ゲッターコーティング / マグネトロンスパッタ / 合金ターゲット / プラズマ解析 / 成膜装置 / NEGコーティング
Outline of Research at the Start

本研究はあらゆる真空装置の到達圧力を低減させる画期的な真空技術の確立を目標としている。本来ガス放出源である真空容器内壁を逆に真空ポンプとして機能させることで到達圧力の究極的な低減を図る。現在,粒子加速器の分野ではこの考えに基づいた非蒸発型ゲッター(NEG)コーティングが普及しているが,元来直線型ビームダクト用に開発されたものであり,現在の手法では多様な形状の真空装置に応用することはできない。そこで,本研究において,一般的な真空装置に応用が可能な小型NEG製膜装置を実現させるための研究開発を行う。この成果により,真空を利用する多様な産業や研究の分野に革新をもたらすことが期待される。

Outline of Final Research Achievements

This research aims at applying the Non-evaporation Getter (NEG) coating technology recently developed for particle accelerator vacuum systems to all types of UHV equipment. In this KAKENHI granted period, we have conducted research and development of a compact NEG coating system employing a TiZrV alloy and SmCo permanent magnet, both of which are different from the conventional method, and have demonstrated that sufficient vacuum performance (ultrahigh vacuum in the 10^-9 Pa range) can be obtained for practical use. We have also established a method to produce TiZrV alloys with high quality (high purity and high density) and low cost (high yield), which has been a bottleneck for their widespread use. Furthermore, we optimized the magnetic circuit by plasma analysis in order to make it applicable to more various vacuum devices, and designed it for further miniaturization.

Academic Significance and Societal Importance of the Research Achievements

本研究において,高い真空排気性能を有するNEGコーティングが従来の大型成膜装置とは異なるICF114フランジマウント型の小型成膜装置でも実現できることを実証した。基本成膜方式としてマグネトロンスパッタ法を踏襲することで,小型化に不可欠な合金ターゲットと永久磁石を用いる成膜装置でも同様な結晶構造をもつNEGコーティングが成膜できていることがSEMやXRDによって観察された。このことは,NEG膜の微細結晶構造が吸着分子の膜内拡散に有効であるという学説を支持する。
また,小型NEG成膜装置は電子顕微鏡や半導体製造装置など多様な真空装置にも応用可能であり,科学や産業の発展にも寄与することが期待される。

Report

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

    (7 results)

All 2024 2023 2021 Other

All Int'l Joint Research (1 results) Presentation (3 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 3 results)

  • [Int'l Joint Research] CERN(スイス)

    • Related Report
      2023 Annual Research Report
  • [Presentation] TiZrV Non-evaporable Getter (NEG) Coating for Ultra-high Vacuum (UHV) Systems2024

    • Author(s)
      Yasunori Tanimoto
    • Organizer
      5th International Symposium of the Vacuum Society of the Philippines (ISVSP2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Non-Evaporable Getter (NEG) Coating Research toward Future Applications in Light Source Accelerators2023

    • Author(s)
      Yasunori Tanimoto
    • Organizer
      TVS-2023 International Workshop on Multidisciplinary Research National Sun Yat-sen University
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Flange Mountable TiZrV Non-evaporable Getter Coating Device2021

    • Author(s)
      Yasunori Tanimoto, Xiuguang Jin, Takashi Uchiyama, Tohru Honda, Makoto Okano
    • Organizer
      The 9th International Symposium on Surface Science (ISSS-9)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] NON-EVAPORABLE GETTER COATING DEVICE, METHOD FOR MANUFACTURING NON-EVAPORABLE GETTER COATED CONTAINER/PIPE, AND NON-EVAPORABLE GETTER COATED CONTAINER/PIPE2023

    • Inventor(s)
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Holder
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] NON-EVAPORABLE GETTER COATING DEVICE, METHOD FOR MANUFACTURING NON-EVAPORABLE GETTER COATED CONTAINER/PIPE, AND NON-EVAPORABLE GETTER COATED CONTAINER/PIPE2023

    • Inventor(s)
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Holder
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] NON-EVAPORABLE GETTER COATING DEVICE, METHOD FOR MANUFACTURING NON-EVAPORABLE GETTER COATED CONTAINER/PIPE, AND NON-EVAPORABLE GETTER COATED CONTAINER/PIPE2023

    • Inventor(s)
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Holder
      Yasunori Tanimoto, Makoto Okano
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas

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

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