Heat spreader module

Details Heat spreader module Heat spreader module

2004-03-24

2008-10-07

Dinh, Tuan T (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S700000, C361S708000

Reexamination Certificate

active

07433187

ABSTRACT:
A heat spreader module has a pedestal, a heat spreader member joined to the pedestal by a first active hard brazing material, an intermediate layer joined to the heat spreader member by a second active hard brazing material, an insulating board joined to the intermediate layer by a third active hard brazing material, and a circuit board joined to the insulating board by a fourth active hard brazing material. The first through fourth active hard brazing materials are supplied such that the active hard brazing materials have a thickness ranging from 3 to 20 μm when the components of the heat spreader module are joined together under pressure, and contain an active element in an amount ranging from 400 to 1000 μg/cm2.

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