METALLIC MATERIAL FOR CONNECTOR

摘要

PROBLEM TO BE SOLVED: To provide a metallic material for a connector which combines connection reliability with a low friction coefficient and also has satisfactory solder wettability.SOLUTION: In the metallic material for a connector, on the base material of Cu or a Cu alloy, a Cu-Sn alloy layer and Sn or an Sn alloy layer are formed in this order, and the average thickness of the Sn or Sn alloy layer is 0.001 to 0.05 μm.