METAL MATERIAL FOR ELECTRONIC COMPONENT, CONNECTOR TERMINAL USING THE SAME, CONNECTOR, AND ELECTRONIC COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide a metal material for an electronic component which has low whisker properties and high durability.SOLUTION: The metal material for an electronic component includes: a substrate; an upper layer formed on the substrate and composed of an alloy of one or two elements selected from a constituent element group A consisting of Sn and In and one or more elements selected from a constituent element group B consisting of Ag, Au, Pt, Pd, Ru, Rh, Os, and Ir; and an outermost layer formed on the upper layer and composed of one or two elements selected from a constituent element group C consisting of Au and Pt. The thickness of the upper layer is 0.02 to 3.00μm inclusive, and the thickness of the outermost layer is 0.0005μm or more and less than 0.02μm.