Copper strip or copper alloy strip and heat dissipating component comprising the same

摘要

PROBLEM TO BE SOLVED: To provide a copper strip or a copper alloy strip which has required corrosion resistance and solder wettability and a good appearance after part processing and a radiation part provided with the same.SOLUTION: A copper strip or a copper alloy strip has a reflow Sn plating layer whose surface has a mirror reflectivity of 25-65.