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Development of highly conductive copper-filled pastes based on control of interfacial chemistry

Research Project

Project/Area Number 15K06455
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Composite materials/Surface and interface engineering
Research InstitutionGunma University

Principal Investigator

Inoue Masahiro  群馬大学, 大学院理工学府, 准教授 (60291449)

Co-Investigator(Kenkyū-buntansha) 牟田 浩明  大阪大学, 工学研究科, 准教授 (60362670)
林 大和  東北大学, 工学研究科, 准教授 (60396455)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords導電性接着剤 / 銅フィラー / エポキシ樹脂 / フェノール樹脂 / 表面処理 / 硬化 / 電気抵抗率 / 環境試験 / 電気的信頼性 / 導電性ペースト / 電子実装材料 / 界面化学現象 / 表面酸化 / パーコレーション / 大気キュア / 酸化 / 界面ケミストリ
Outline of Final Research Achievements

This work investigated novel material design for copper-filled electrically conductive adhesives by using interfacial chemical reaction between copper fillers and chemical factors (amine hardeners and carboxylic acid surfactants). Lower electrical resistivity was successfully obtained by curing these copper-filled adhesives even in air. Epoxy-based adhesive with a polyamide amine hardener showed lower resistivity below 100 μΩcm by curing above 180 °C. Phenolic-based adhesives with Tetraethylenepentamine (TEA)-treated fillers exhibited a low electrical resistivity (50 μΩcm) by curing in air. In addition, the electrical resistivity of these adhesives was rarely increased during exposure to 85°C/85%RH environment for 1000 h.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (12 results)

All 2018 2017 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] 大気キュアした銅系導電性ペーストの湿熱環境下での導電特性変化に及ぼすフィラー表面処理剤の影響2018

    • Author(s)
      瓦井健太、井上雅博
    • Journal Title

      エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム論文集

      Volume: 24 Pages: 295-300

    • Related Report
      2017 Annual Research Report
  • [Journal Article] 銅系導電性接着剤の導電性発現挙動におけるバインダケミストリの影響2016

    • Author(s)
      井上雅博,庭山泰一,坂庭慶昭,多田泰徳
    • Journal Title

      スマートプロセス学会

      Volume: 5 Pages: 300-308

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 大気キュアした銅系導電性ペーストの湿熱環境下での導電特性変化に及ぼすフィラー表面処理剤の影響2018

    • Author(s)
      瓦井健太、井上雅博
    • Organizer
      24th Symposium on Microjoining and Assembly Technology in Electronics (Mate2018)
    • Related Report
      2017 Annual Research Report
  • [Presentation] フェノール系バインダ中での銅フィラーの導電パス形成に及ぼす表面処理剤の効果2017

    • Author(s)
      瓦井健太、多田泰徳、井上雅博
    • Organizer
      Mate2017
    • Place of Presentation
      横浜
    • Year and Date
      2017-01-31
    • Related Report
      2016 Research-status Report
  • [Presentation] 大気キュア可能な銅系導電性ペーストの導電性発達に及ぼすフィラー表面処理剤の影響2017

    • Author(s)
      瓦井健太、井上雅博
    • Organizer
      JPCA show 2017 アカデミックプラザ
    • Related Report
      2017 Annual Research Report
  • [Presentation] Electrical conductivity assesment of copper-loaded pastes composed of a phenolic resin-based binder cured in air2017

    • Author(s)
      Kenta Kawarai, Masahiro Inoue
    • Organizer
      2017 Taiwan-Japan Workshop on Electronic Interconnection I
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 銅系導電性接着剤の電気伝導特性に及ぼすフィラー表面処理効果のバインダ選択性2016

    • Author(s)
      井上雅博,瓦井健太,多田泰徳
    • Organizer
      マイクロエレクトロニクスシンポジウム2016
    • Place of Presentation
      名古屋
    • Year and Date
      2016-09-08
    • Related Report
      2016 Research-status Report
  • [Presentation] 異相界面現象を利用した銀および銅系導電性接着剤の材料設計2016

    • Author(s)
      井上雅博
    • Organizer
      電子デバイス実装研究委員会
    • Place of Presentation
      東京
    • Year and Date
      2016-05-23
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 銅系導電性接着剤の大気キュア過程での導電特性変化に及ぼすバインダケミストリの影響2016

    • Author(s)
      井上雅博
    • Organizer
      Mate2016
    • Place of Presentation
      横浜(パシフィコ横浜)
    • Year and Date
      2016-02-02
    • Related Report
      2015 Research-status Report
  • [Presentation] 銅フィラーを用いたエポキシ系導電性接着剤の大気キュア後の電気伝導特性に及ぼすバインダ配合の影響2015

    • Author(s)
      井上雅博
    • Organizer
      日本接着学会年次大会2015
    • Place of Presentation
      豊田市(愛工大)
    • Year and Date
      2015-06-20
    • Related Report
      2015 Research-status Report
  • [Presentation] 銅系導電性接着剤における大気キュア過程での導電パス形成挙動2015

    • Author(s)
      井上雅博
    • Organizer
      JPCA show 2015 アカデミックプラザ
    • Place of Presentation
      東京(東京ビッグサイト)
    • Year and Date
      2015-06-04
    • Related Report
      2015 Research-status Report
  • [Presentation] Effect of Binder Chemistry on the Electrical Conductivity of Air-cured Epoxy-based Electrically Conductive Adhesives containing Copper Filler2015

    • Author(s)
      Masahiro Inoue
    • Organizer
      ECTC2016
    • Place of Presentation
      サンディエゴ
    • Year and Date
      2015-05-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2019-03-29  

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