| 摘要 |
PROBLEM TO BE SOLVED: To provide a soldered article using a solder which is difficult to cause electrode corrosion, excellent in soldering property, free from Ag, and excellent in material cost. SOLUTION: In a soldered article in which a parts having a Cu conductor is bonded with a solder, the solder having the composition consisting of, by weight, 0.1-2.0% Cu, 1.0-7.5% Bi and the balance Sn is used. In addition, the composition of Cu in the solder is 0.5-1.3%. The composition of Bi in the solder is 1.0-3.0%. |
