[graphite base for heat sink, method of making graphite base and heat sink]
AssigneesMr. Kai-Yu Lin, Mr. Yi-Ning Chung
InventorsKai-Yu Lin, Yi-Ning Chung
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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.
Claims8
A graphite base manufacturing method comprising the steps of:
- (a) Grinding natural graphite into nanometered graphite powder;
- (b) Mixing said nanometered graphite powder with a bonding agent to form a graphite mixture;
- (c) Grinding said graphite mixture into ball-like graphite;
- (d) Processing said ball-like graphite into a graphite mass with a high pressure by means of hot press, cold press and vibration;
- (e) Dipping said graphite mass in a liquid phase asphalt, enabling said liquid phase asphalt to fill up crevices in said graphite mass;
- and
- (f) Graphitizing said graphite mass to a dry state graphite block.
A heat sink manufacturing method comprising the steps of:
- (a) Grinding natural graphite into nanometered graphite powder;
- (b) Mixing said nanometered graphite powder with a bonding agent to form a graphite mixture;
- (c) Grinding said graphite mixture into ball-like graphite;
- (d) Processing said ball-like graphite into a graphite mass with a high pressure by means of hot press, cold press and vibration;
- (e) Dipping said graphite mass in a liquid phase asphalt, enabling said liquid phase asphalt to fill up crevices in said graphite mass;
- (f) Graphitizing said graphite mass to a dry state graphite block;
- (g) Covering a top surface of said dry state graphite block with a layer of metal coating to form a graphite base;
- and
- (h) Bonding metal radiation fins to said metal coating.
Dependencies are inferred from the claim text.