Patent ID: 9698511
Date: 2017-07-04
CPC Classifications: B23K,B32B,C22C,C25D,G01R,H01R

Claim:
1. An electric contact comprising: an electrically-conductive base material; a surface layer which comprises Pd and Ag, and is formed above the base material; an outermost layer which comprises Sn and is directly formed on the surface layer; and a barrier layer formed by melting of a specific amount of Sn in the outermost layer into the surface layer, wherein the electric contact is in contact with an Sn-containing terminal of an electrical part when a continuity test of the electrical part is conducted in a high temperature environment under which Sn contained in the Sn-containing terminal of the electrical part melts, and the barrier layer suppresses Sn contained in the Sn-containing terminal of the electrical part melted under the high temperature environment of the continuity test from being alloyed with Pd and Ag contained in the surface layer.