发明名称 Method for forming solder deposit on a substrate
摘要 An electronic circuit assembly (100) includes a circuit carrying substrate (150) on which electrical components (130) are mounted using solder deposits (125) having an essentially planar surface. A solder deposit (125) is created by forming a recess (155) in the substrate (150), providing a metallic pad (110) about the recess (155), depositing solder paste (120) on the metallic pad (110), and reflowing the solder paste (120) on the metallic pad (110). The electronic circuit (100) is assembled by placing electrical components (130) on the substrate (150) having solder deposits (125), and by further reflowing the solder deposits (125) on the metallic pad (110).
申请公布号 US5369880(A) 申请公布日期 1994.12.06
申请号 US19930057374 申请日期 1993.05.06
申请人 MOTOROLA, INC. 发明人 GUNDOTRA, VED V.;BERNARDONI, LONNIE L.;HALL, EDWARD J.
分类号 H05K1/11;H05K3/34;(IPC1-7):H05K3/34 主分类号 H05K1/11
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