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

摘要

Disclosed is a composite material for electrical/electronic components used as a material for an electrical/electronic component, wherein an insulating film is formed on at least a part of a metal base at least the surface of which is composed of Cu or a Cu alloy.  A metal layer wherein Cu is dispersed in Ni or an Ni alloy is arranged between the metal base and the insulating film, and the ratio of the number of Cu atoms to the number of Ni atoms (Cu/Ni) is not less than 0.005 when the outermost surface of the metal layer is measured by Auger electron spectroscopy.