Surface mounted electronic component

Details Surface mounted electronic component Surface mounted electronic component

2008-03-04

2008-03-04

Harvey, James (Department: 2833)

Electrical connectors

Preformed panel circuit arrangement, e.g., pcb, icm, dip,...

Distinct contact secured to panel circuit

C439S876000

Reexamination Certificate

active

07338299

ABSTRACT:
An exemplary surface mounted electronic component has block body including a bottom soldering surface, a top surface and a peripheral wall having a first peripheral wall portion and a second peripheral wall portion. The bottom soldering surface defines a first soldering area and a second soldering area. The first peripheral wall portion adjoins the first soldering area and has at least a first cutout defined between the first peripheral wall portion and the first soldering area. The second peripheral wall portion adjoins the second soldering area and has at least a second cutout defined between the second peripheral wall portion and the second soldering area. When the surface mounted electronic component is soldered, the melting solder can climb up the cutouts of the sidewall due to capillary effect and ‘chimney effect’, thereby avoiding ‘tombstoning’.

REFERENCES:
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patent: 5569880 (1996-10-01), Galvagni et al.
patent: 5825633 (1998-10-01), Bujalski et al.
patent: 6031728 (2000-02-01), Bedos et al.
patent: 6534726 (2003-03-01), Okada et al.
patent: 6862190 (2005-03-01), Olzak et al.
patent: 7189083 (2007-03-01), Seidler et al.

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