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Development of metallic coating technique onto 3D-printed polymer for fabrication of Terahertz wireless communication devices

Research Project

Project/Area Number 20H02511
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 27020:Chemical reaction and process system engineering-related
Research InstitutionKumamoto University (2023)
The University of Tokyo (2020-2022)

Principal Investigator

Momose Takeshi  熊本大学, 半導体・デジタル研究教育機構, 准教授 (10611163)

Co-Investigator(Kenkyū-buntansha) 小西 邦昭  東京大学, 大学院理学系研究科(理学部), 准教授 (60543072)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywords超臨界流体薄膜堆積法 / 金属コーティング / テラヘルツ波 / 導波管 / 3Dプリンタ
Outline of Research at the Start

次世代の高速無線通信技術としてテラヘルツ(THz)波の利用が検討されている。THz波通信システムは送受信機,導波管,アンテナからなるが,導波管形成の目処がたっていない。THz波導波管は極細(数十um)かつ超高アスペクト比(数百)であり,従来技術の転用は難しい。本研究では,高解像度の光造形型3Dプリンタによりポリマー立体構造を形成した後に,金属薄膜をコートする新たな手法を開発する。研究代表者の検討してきた超臨界流体薄膜堆積法(SCFD)は,アスペクト比が100を超える高アスペクト比構造にも金属コートが可能であり,本研究では,SCFDを発展させ,独自の導波管形成手法として確立することを目指す。

Outline of Final Research Achievements

We have investigated a method of forming terahertz wave devices by forming a polymer 3D structure using a 3D printer and coating the surface with a thin metal film to form fine and complex structures that could not be achieved by conventional metal cutting. A physical model was constructed to quantitatively derive the propagation loss, and it was found that copper is the optimum film material and that the required film thickness is 100-300 nm, depending on the bulk resistivity of the film. We also developed a supercritical fluid thin film deposition (SCFD) technique with excellent step coverage to form low-resistance copper films uniformly in terahertz wave devices with complex three-dimensional structures fabricated by a 3D printer.

Academic Significance and Societal Importance of the Research Achievements

次世代の高速無線通信技術としてテラヘルツ(THz)波通信の開発が各国で行われている。THz波通信システムは送受信機,導波管,アンテナなどからなるが,極細(数百um)かつ超高アスペクト比(数百)な導波管形成が課題となっている。ミリ波デバイスは金属の切削加工によりデバイスを形成してきたが,寸法の小さいテラヘルツ波デバイスでは難しい。本研究で構築したポ3Dプリンタによるポリマー3次元構造とSCFDによる金属膜被覆の組み合わせは本問題を解決できる可能性を秘めている。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (16 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] Supercritical fluid deposition for conformal Cu film formation on sub-millimeter-scale structures used to fabricate terahertz waveguides2022

    • Author(s)
      Huang Yuyuan、Deura Momoko、Shimoyama Yusuke、Shimogaki Yukihiro、Momose Takeshi
    • Journal Title

      Applied Physics Express

      Volume: 15 Issue: 7 Pages: 075502-075502

    • DOI

      10.35848/1882-0786/ac737b

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suitability of metallic materials for constructing metal-coated dielectric terahertz waveguides2022

    • Author(s)
      Huang Yuyuan、Konishi Kuniaki、Deura Momoko、Shimoyama Yusuke、Yumoto Junji、Kuwata-Gonokami Makoto、Shimogaki Yukihiro、Momose Takeshi
    • Journal Title

      Journal of Applied Physics

      Volume: 131 Issue: 10 Pages: 105106-105106

    • DOI

      10.1063/5.0075639

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a model for evaluating propagation loss of metal-coated dielectric terahertz waveguides2021

    • Author(s)
      Huang Yuyuan、Konishi Kuniaki、Deura Momoko、Shimoyama Yusuke、Yumoto Junji、Kuwata-Gonokami Makoto、Shimogaki Yukihiro、Momose Takeshi
    • Journal Title

      Journal of Applied Physics

      Volume: 130 Issue: 5 Pages: 055104-055104

    • DOI

      10.1063/5.0058662

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Supercritical fluid deposition for semiconductors2024

    • Author(s)
      Takeshi Momose
    • Organizer
      The Society of Chemical Engineering, Japan, 89th annual Meeting (international session)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of low-resistivity copper thin film formation process on polymer using supercritical fluid deposition2023

    • Author(s)
      Yusuke Nakajima, Yukihiro Shimogaki, and Takeshi Momose
    • Organizer
      ADMETA Plus 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超臨界流体薄膜堆積法の基礎と半導体応用2023

    • Author(s)
      百瀬健
    • Organizer
      公益社団法人 新化学技術推進協会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 超臨界流体薄膜堆積法によるポリマー上への低抵抗率銅薄膜形成プロセスの開発2023

    • Author(s)
      中嶋 佑介,霜垣 幸浩,百瀬 健
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超臨界流体薄膜堆積法を用いた誘電体上の低抵抗率銅薄膜形成に向けた前処理条件の検討2023

    • Author(s)
      中嶋佑介,Huang Yuyuan,霜垣幸浩,百瀬健
    • Organizer
      化学工学会第88年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Investigation of Cu coating by supercritical fluid deposition on high aspect ratio features for THz wave devices2022

    • Author(s)
      Yuyuan Huang, Kuniaki Konishi, Momoko Deura, Yusuke Shimoyama, Junji Yumoto, Makoto Kuwata-Gonokami, Yukihiro Shimogaki, Takeshi Momose
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高アスペクト比構造へのCu-SCFDプロセス最適設計に向けたCu(tmhd)2のscCO2への溶解度と拡散係数の測定2022

    • Author(s)
      師井 滉平,Huang Yuyuan,出浦 桃子,下山 裕介,霜垣 幸浩,百瀬 健
    • Organizer
      化学工学会第53回秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Suitability of metallic materials for metal-coated dielectric terahertz waveguides2022

    • Author(s)
      Yuyuan Huang、Kuniaki Konishi、Momoko Deura、Yusuke Shimoyama、Junji Yumoto、Makoto Kuwata-Gonokami、Yukihiro Shimogaki、Takeshi Momose
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Physical Model For Evaluating Propagation Loss Of Metal-coated Dielectric Terahertz Waveguides2021

    • Author(s)
      3.Yuyuan Huang, Kuniaki Konishi, Momoko Deura, Yusuke Shimoyama, Junji Yumoto, Makoto Kuwata-Gonokami, Yukihiro Shimogaki, Takeshi Momose
    • Organizer
      46th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Propagation loss mechanism in metal-coated dielectric terahertz wave parallel-plate waveguide2021

    • Author(s)
      Yuyuan Huang、Kuniaki Konishi、Momoko Deura、Yusuke Shimoyama、Junji Yumoto、Makoto Kuwata-Gonokami、Yukihiro Shimogaki、Takeshi Momose
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Supercritical fluid deposition of Cu for sub-millimeter-scale features2021

    • Author(s)
      Huang Yuyuan・Deura Momoko・Shimoyama Yusuke・Shimogaki Yukihiro・Momose Takeshi
    • Organizer
      第52回化学工学会秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Propagation loss of metal-coated dielectric parallel-plate waveguide in transverse-electric (TE) mode2021

    • Author(s)
      Yuyuan Huang、Kuniaki Konishi、Momoko Deura、Yusuke Shimoyama、Junji Yumoto、Makoto Kuwata-Gonokami、Yukihiro Shimogaki、Takeshi Momose
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Material evaluation for inner metallic coating of hollow dielectric THz waveguides2020

    • Author(s)
      Yuyuan Huang, Kuniaki Konishi, Momoko Deura, Yusuke Shimoyama, Junji Yumoto, Makoto Kuwata-Gonokami, Yukihiro Shimogaki, Takeshi Momose
    • Organizer
      45th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Supercritical fluid deposition technique enabling metallic coating onto 3D-printed polymer for fabrication of high-aspect-ratio THz devices2020

    • Author(s)
      Takeshi Momose, Kuniaki Konishi, Yu Zhao, Hirotaka Morishita, Tetsuya Tsuchida, Yuyuan Huang, Hiroyuki Yasukochi, Kentaro Soeda, Momoko Deura, Yusuke Shimoyama, Junji Yumoto, Makoto Kuwata-Gonokami, and Yukihiro Shimogaki
    • Organizer
      45th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Film thickness dependence on propagation loss of coated metal in terahertz waveguides2020

    • Author(s)
      Yuyuan Huang、Kuniaki Konishi、Momoko Deura、Yusuke Shimoyama、Junji Yumoto、Makoto Kuwata-Gonokami、Yukihiro Shimogaki、Takeshi Momose
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Impact of surface oxidation on wave propagation of Cu-coated THz waveguides2020

    • Author(s)
      Yuyuan Huang、Kuniaki Konishi、Momoko Deura、Yusuke Shimoyama、Junji Yumoto、Makoto Kuwata-Gonokami、Yukihiro Shimogaki、Takeshi Momose
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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