各種無電解めっき電極の耐イオンマイグレーション性能

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2013/04/01

タイトル(英語): Ion-Migration Resistance Characteristics of Various Electroless Plating Electrodes

著者名: 今野　大（秋田大学工学資源学研究科電気電子工学専攻），水戸部　一孝（秋田大学工学資源学研究科電気電子工学専攻），藤村　和由（東電化工業（株）），鈴木　雅史（秋田大学工学資源学研究科電気電子工学専攻），吉村　昇（秋田大学）

著者名(英語): Dai Konno (Department of Electrical and Electronic Engineering, Graduate School of Engineering and Resource Science, Akita University), Kazutaka Mitobe (Department of Electrical and Electronic Engineering, Graduate School of Engineering and Resource Science, Akita University), Kazuyoshi Fujimura (Azuma Denka Industry Co., Ltd.), Masafumi Suzuki (Department of Electrical and Electronic Engineering, Graduate School of Engineering and Resource Science, Akita University), Noboru Yoshimura (Akita University)

キーワード: イオンマイグレーション，デンドライト，無電解めっき，WDT法，プリント配線板　　ion-migration，dendrite，electroless plating，water drop test，printed-wiring board

要約(英語): In this study, ion-migration (IM) endurance of the electroless plating to the electrodes was evaluated by the water drop test (WDT) method. The characteristics of the top layer metal affected the durability of IM when different types of metals were laminated in the plating process. After WDT, dendrites were found on the printed wiring board (PWB) with the electroless plating of Ag, but they were absent with electroless plating of Au, Pd or Ni of the top layer of an electrode. From the result, it is clear that the plating process of Au, Pd and Ni at the top layer of an electrode can improve the IM endurance. Moreover, the risk of metal elution increases with the electrical field concentration at electrode edge. Therefore, even if the surface of electrode was covered with excellent IM endurance metal, the IM endurance may decrease greatly if inferior IM tolerance metal was slightly exposed at the electrode edge.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.4 （2013） 特集：平成24 年基礎・材料・共通部門大会

本誌掲載ページ: 153-158 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/133/4/133_153/_article/-char/ja/