Graphite base for heat sink, method of making graphite base...

Details Graphite base for heat sink, method of making graphite base... Graphite base for heat sink, method of making graphite base...

2005-04-13

2009-02-17

Meeks, Timothy (Department: 1792)

Coating processes

Coating by vapor, gas, or smoke

Metal coating

C427S430100, C427S434500, C156S060000

Reexamination Certificate

active

07491421

ABSTRACT:
A graphite base is made by: mixing nanometered graphite powder with a bonding agent to form a graphite mixture and then grinding the graphite mixture and processing the graphite mixture into a graphite mass with a high pressure by means of hot press, cold press and vibration, and then dipping the graphite mass in a liquid phase asphalt, and then baking the graphite mass to a dry state graphite block. The dry state graphite block is further coated with a layer of metal coating and bonded with metal radiation fins to form a heat sink.

REFERENCES:
patent: 3719608 (1973-03-01), Olstowski
patent: 4512858 (1985-04-01), Struck et al.
patent: 4929404 (1990-05-01), Takahashi et al.

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