Metal working – Method of mechanical manufacture – Electrical device making
Patent
1993-05-06
1994-12-06
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
174263, 2281801, 437209, H05K 334
Patent
active
053698800
ABSTRACT:
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).
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patent: 5260518 (1993-11-01), Tanaka
Bernardoni Lonnie L.
Gundotra Ved V.
Hall Edward J.
Arbes Carl J.
Fuller Andrew S.
Motorola Inc.
Nichols Daniel K.
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