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Selective Cu-deposition using CuI as prucursor

Research Project

Project/Area Number 17K06339
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionIbaraki University

Principal Investigator

Yamauchi Satoshi  茨城大学, 理工学研究科(工学野), 教授 (30292478)

Co-Investigator(Kenkyū-buntansha) 城塚 達也  茨城大学, 理工学研究科(工学野), 助教 (70823003)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords銅の化学気相堆積 / 銅薄膜の選択形成 / ヨウ化銅(I)原料 / 第一原理計算 / 銅薄膜の選択生成 / ヨウ化銅原料 / 銅配線 / 電子デバイス・機器 / 電子・電気材料 / デバイス設計・製造プロセス
Outline of Final Research Achievements

In this research, low-pressure chemical vapor deposition using copper-iodide(CuI) was developed to achieve selective Cu-deposition on metal-surface aiming at using for metallization-process on ULSI-fabrication. [RESULT-1] CuI is sublimated as trimer at low-temperature around 300oC in low-pressure environment. [RESULT-2] Cu is selectively deposited on metal-surface at low temperature around 300oC. [RESULT-3] Low-resistive Cu could be deposited at 370oC by control of CuI-supply rate. [RESULR-4] Self-dissociation scheme of CuI on metal surface was suggested by ab-initio calculations.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発したCuの選択形成技術は、安価で安定性も高い原料を使用し減圧中で昇華させ加熱した基材上に供給するといった極めて簡略化された方法にも関わらず、これまで実現できなかった選択形成を300℃程度の低温で実現できる点で非常に有用な方法であり、集積回路の配線工程の簡略化などに寄与できると期待できる。本研究で提案した原料の分解機構は従来の熱分解とは全く異なり、この分解過程による選択成長機構は今後の金属の選択堆積方法の開発に広く応用できる可能性が高い。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018 2017 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] Low-pressure chemical vapor deposition of Cu on Ru substrate using CuI: calculations2020

    • Author(s)
      Tatsuya Joutsuka and Satoshi Yamauchi
    • Journal Title

      Chemical Physics Letters

      Volume: 741 Pages: 137108-137108

    • DOI

      10.1016/j.cplett.2020.137108

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] ヨウ化銅を用いたルテニウム上への銅の選択化学気相堆積2019

    • Author(s)
      堀内 健佑、城塚 達也、山内 智
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ヨウ化銅を用いたLPCVD法による銅膜の高速成長2018

    • Author(s)
      堀内健佑 、丸谷美由紀 , 城塚達也 , 山内智
    • Organizer
      平成 30 年度 電気学会東京支部 茨城支所 研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] CuIを原料とするLPCVD法による選択的なCu堆積II2017

    • Author(s)
      西川太二、山内 智
    • Organizer
      電気学会東京支部茨城支所研究発表会
    • Related Report
      2017 Research-status Report
  • [Remarks] 茨城大学研究者情報総覧

    • URL

      https://info.ibaraki.ac.jp/Profiles/5/0000412/profile.html

    • Related Report
      2018 Research-status Report 2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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