SN-CU-BASED LEAD-FREE SOLDER ALLOY

摘要

Provided is a solder alloy having excellent wettability on both of a Cu surface and an Ni surface. The solder alloy has such an alloy composition that 0.6 to 0.9 mass% of Cu and 0.01 to 0.1 mass% of Al are contained, 0.02 to 0.1 mass% of Ti and/or 0.01 to 0.05 mass% of Co may be contained as required and the remainder is made up by Sn.