| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a plating material having both of satisfactory heat resistance and insertion-extraction properties, and to provide its production method. SOLUTION: In the method for producing a plating material, on the surface of an electrically conductive substrate 1, a substrate layer 2 composed of either one kind of metal in the groups 4, 5, 6, 7, 8, 9 and 10 or an alloy consisting essentially of the same, an intermediate plating layer composed of Cu or a Cu alloy, and a surface plating layer composed of Sn or an Sn alloy are formed in this order, and thereafter, the intermediate plating layer is vanished, e.g., by heating treatment, so as to form a layer 3' composed of an Sn-Cu intermetallic compound. COPYRIGHT: (C)2006,JPO&NCIPI
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