COMPOSITE MATERIAL FOR ELECTRICAL/ELECTRONIC COMPONENT AND ELECTRICAL/ELECTRONIC COMPONENT USING THE SAME

摘要

A composite material for an electrical/electronic part, which is used as a material for use in an electrical/electronic part, containing:
a metal base material having at least a surface formed of Cu or a Cu alloy; and
an insulating film provided on at least a part of the metal base material;
wherein a metal layer having Cu diffused in Ni or a Ni alloy is interposed between the metal base material and the insulating film; and
wherein the ratio of the number of Cu atoms to the number of Ni atoms (Cu/Ni) obtained by analyzing the outermost surface of the metal layer by Auger electron spectroscopy is 0.005 or more.