| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric or electronic component suitable for joining and assembling with lead-free solder. SOLUTION: Electric or electronic components 1, 3 have conductive connecting members 5, 7 for connecting the components 1, 3 to the other components 3, 1. Pre-coatings 11, 13 are applied to the surfaces of the connecting members. The pre-coating contains tin and 3 wt.% or less alloy forming metal selected from the group consisting of zinc, silver and copper.
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