Thermally conductive interface

Details Thermally conductive interface Thermally conductive interface

2006-11-07

2009-06-02

Arbes, C. J (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S825000, C029S830000, C165S185000

Reexamination Certificate

active

07540081

ABSTRACT:
A thermally conductive material is provided as a mixture of a silicone, a ceramic powder, and a curing catalyst. The material may be pre-formed into a pad and each side of the film protected with removable release layers. Each side of the film may also include a coating of an adhesive material that aids in coupling the interface film with a surface. The material may alternatively be produced in a screen-printable paste. As such, a layer of the paste may be screen-printed on a surface as complete sheet form or as a patterned film by using a stencil patterned screen mesh. The interface material is sandwiched between a printed circuit board and a heat sink to form the circuit board assembly. In a multi-step press process, the assembly is cured and a laminate formed. The assembly process may also include a priming function that prepares metal surfaces of the circuit board and heat sink for receiving the interface material.

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