| 摘要 |
<p>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 line length of the outermost layer is≥50% of that of the upper layer.</p> |
