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US 7,254,888 B2Granted
Method for manufacturing graphite-base heat sinks
AssigneeInternational Business Machines Corporation
InventorsRichard C. Chu, Michael J. Ellsworth, Jr., Egidio Marotta, Prabjit Singh
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Abstract
A method of fabricating a heat sink includes preparing a surface of a graphite-based substrate and removing particulate matter generated from the preparation of the surface of the substrate. A metal-based coating is applied at the surface of the prepared substrate. The prepared substrate having the metal-based coating is arranged to form a heat sink structure.
Claims1
A method of fabricating a heat sink, said method comprising:
- preparing a surface of a graphite-based substrate, the graphite-based substrate defining a heat sink fin having facial areas for transferring heat to an adjacent enviromnent;
- removing particulate matter generated from the preparation of said surface of said substrate;
- applying a metal-based coating at said surface of said prepared substrate, the metal-based coating being applied on the facial areas of the heat sink fin and edges between the facial areas;
- masking said surface of said substrate to selectively apply said metal-based coating;
- arranging said prepared substrate having said metal-based coating on a base to form a heat sink structure;
- and soldering the metal-based coating to the base.
3 more elements
Dependencies are inferred from the claim text.