Electrical circuit apparatus and methods for assembling same

Details Electrical circuit apparatus and methods for assembling same Electrical circuit apparatus and methods for assembling same

2005-03-01

2005-03-01

Parekh, Nitin (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

Insulating material

C257S711000, C257S712000, C257S713000, C257S774000, C257S778000, C257S782000, C257S783000

Reexamination Certificate

active

06861746

ABSTRACT:
An electrical circuit apparatus (300) that includes: a substrate (330) having a ground layer (336), at least one thermal aperture (332), and at least one solder aperture (334); a heat sink (310); and an adhesive layer (320) for mechanically coupling the heat sink to the ground layer of the substrate such that at least a portion of the at least one substrate thermal aperture overlaps the heat sink, the adhesive layer having at least one thermal aperture (322) and at least one solder aperture (324), wherein aligning the at least one substrate solder aperture with the at least one adhesive layer solder aperture and aligning the at least one substrate thermal aperture with the at least one adhesive layer thermal aperture enables solder wetting in a predetermined area between the heat sink and the ground layer of the substrate.

REFERENCES:
patent: 5646444 (1997-07-01), Bartlett et al.
patent: 6770967 (2004-08-01), Barcley

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