SOLDER COATING BALL, AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a fine solder coating ball excellent in mass productivity.SOLUTION: A solder coating ball 10A comprises: a spherical core 11 containing Ni and P; and a solder layer 12 formed to cover the core 11. A solder coating ball 10B further comprises a Cu plated layer 13 formed between the core 11 and the solder layer 12. A solder coating ball 10C further comprises a Ni plated layer 14 formed between the Cu plated layer 13 and the solder layer 12.SELECTED DRAWING: Figure 1