发明名称 Upward soldering method
摘要 A printed wiring board having an electronic component mounted thereon is disposed with a land of pattern directed downward, and the land and a lead terminal of the electronic component are irradiated with a light beam emitted upwardly and supplied with a solder forwarded upwardly.
申请公布号 US5373985(A) 申请公布日期 1994.12.20
申请号 US19930149336 申请日期 1993.11.09
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 CHIBA, HIROMU;KOBAYASHI, MAKOTO
分类号 B23K1/005;B23K101/42;H05K3/34;(IPC1-7):H05K3/34 主分类号 B23K1/005
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