Present status and future outlook of selective metallization for electronics industry by laser irradiation to metal nanoparticles

    研究成果: Conference contribution

    4 被引用数 (Scopus)


    Recently an alternative to conventional methods based on vacuum processes such as evaporation or sputtering is desired to reduce the energy consumption and the environmental impact. Printed electronics has been developed as a one of the candidates, which is based on wet processes using soluble functional materials such as organic semiconductors, inorganic nanomaterials, organic-inorganic hybrids, and so on. Although inkjet printing has been studied widely as a core technology of printed electronics, the limitation of resolution is around 20 micrometer. The combination of the inkjet printing with other selective metallization process is necessary because the resolution of several micrometers is required in some optical and electrical devices. The laser processing has emerged as an attractive technique in microelectronics because of the fascinating features such as high resolution, high degree of flexibility to control the resolution and size of the micro-patterns, high speed, and a little environmental pollution. In this paper, the present status and future outlook of selective metallization for interconnection and the formation of transparent conductive film based on the laser processing using metal nanoparticles were reported. The laser beam irradiation to metal nanoparticles causes the fast and efficient sintering by plasmon resonance of metal nanoparticle, where the absorbed energy is confined in a nanoparticle and the nanoparticle acts as a nano-heater. The laser irradiation to metal nanoparticles was applied to the laser direct writing of metal wiring and micropatterns using silver and copper nanoparticles.

    ホスト出版物のタイトルLaser-Based Micro- and Nanoprocessing IX
    編集者Udo Klotzbach, Kunihiko Washio, Craig B. Arnold
    出版ステータスPublished - 2015
    イベントLaser-Based Micro- and Nanoprocessing IX - San Francisco, United States
    継続期間: 2015 2月 102015 2月 12


    名前Proceedings of SPIE - The International Society for Optical Engineering


    OtherLaser-Based Micro- and Nanoprocessing IX
    国/地域United States
    CitySan Francisco

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 凝縮系物理学
    • コンピュータ サイエンスの応用
    • 応用数学
    • 電子工学および電気工学


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