| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a metallic material for an electronic component having low contact resistance and a low friction coefficient, thus having reduced insertion, and having low whisker properties, low adhesion wear properties and having high durability, and a connector terminal, a connector and an electronic component using the same.SOLUTION: Provided is a metallic material for an electronic component comprising: a base material; a lower layer formed on the base material and composed of one or more kinds selected from an A constituent element group as a group consisting of N, Cr, Mn, Fe, Co and Cu; an intermediate layer formed on the lower layer; an upper layer formed on the intermediate layer and composed of one or two kinds selected from a B constituent element group as a group consisting of Sn and In and one or more kinds of alloys selected from a C constituent element group as a group consisting of Ag, Au, Pt, Pd, Ru, Rh, Os and Ir; and a surface-treated layer formed on the upper layer and including a metal(s) composed of one or more kinds selected from a metallic element group composing the lower layer, the intermediate layer and the upper layer. The intermediate layer includes the metal(s) in the B constituent element group by 35 at% or higher.</p> |
