Apparatus and method for cooling ICs using nano-rod based chip-level heat sinks
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United States of America Patent
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Issued Date -
Oct 19, 2006
app pub date -
Mar 21, 2006
filing date -
Mar 21, 2005
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Abandoned
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Abstract
A method and apparatus for overcoming the problems of rapidly increasing complexity and cost and degrading reliability measures in connection with the cooling of a multi-chip mounted on an electronic printed circuit board. Accordingly, there are combined a) nano-structures materials for micro or nano-scale heat transfer from a substrate; b) small dimension heat sinks or heat spreaders matched to the mico-scale heat transfer to control the spread resistance; c) nano-scale cooling channel surfaces or micro-channel heat exchangers to improve heat transfer coefficients of the hot components to the cooling agent, air or liquid; and d) sharing of the active device such as a fan, pump, compressor, etc., that are responsible for moving the cooling agent in an active cooling embodiment. By providing appropriate passage for the cooling agent an effective and efficient cooling of the hot surfaces is achieved.
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