High conductivity hybrid material for thermal management

Details High conductivity hybrid material for thermal management High conductivity hybrid material for thermal management

H - Electricity

05

K

H05K 7/20 (2006.01) B32B 5/16 (2006.01) H01L 23/373 (2006.01)

Patent

CA 2128872

A hybrid structural material (10) combines high thermal conductivity and predetermined mechanical properties compatible with adjacent materials. It has three elements: (1) a non-structural, high thermal conductivity core material (20) which defines the thermal conductivity of the hybrid structural material; (2) a pair of face sheets (30, 40), which form opposing surfaces of the hy- brid structural material and help to define its mechanical properties, disposed on opposite sides of the core material to create a face sheet-core material-face sheet sandwich construction; and (3) a frame (50) substantially surrounding the core material and bonded to the face sheets for helping to define (along with the face sheets) the mechanical properties of the hybrid structural ma- terial. The interfaces (70, 80) between the face sheets and the core material allow physical contact, but prevent structural interac- tion, between the face sheets and the core material. Consequently, the hybrid structural material achieves a high fraction of the thermal conductivity of the core material while maintaining the thermal expansion (and other mechanical properties) of the face sheets and frame.

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