Heat sink assembly including flexible heat spreader sheet

Details Heat sink assembly including flexible heat spreader sheet Heat sink assembly including flexible heat spreader sheet

1997-12-10

1999-11-23

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361704, 361706, 361751, 257723, 165 802, 174252, H05K 720

Patent

active

059911557

ABSTRACT:
In a heat sink, a portable electronic apparatus using this heat sink, and a method for forming this heat sink, an abutting member is arranged on an inside surface of a casing and the casing and the abutting member are covered with a heat spreader sheet. The heat spreader sheet is made to abut against an exothermic device by means of an abutting member. The heat generated in the exothermic device is transmitted to the inside wall surface of the casing via the heat spreader sheet, with a portion being transmitted via the abutting member. When an anisotropic thermal conductivity material is used for the abutting member, it is possible to realize characteristics such as a low peak casing temperature under the exothermic device.

REFERENCES:
patent: 4442540 (1984-04-01), Lipschutz et al.
patent: 5133403 (1992-07-01), Yokono et al.
patent: 5673176 (1997-09-01), Penniman et al.

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