FLAT HEAT SPREADER AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Apr 17, 2013
filing date -
Dec 14, 2012
priority date (Note) -
Abandoned
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Abstract
A flat heat spreader includes a hollow casing defining a vapor chamber therein, a working liquid contained in the vapor chamber, a first wick structure formed on an inner face of the casing, and a second wick structure formed on the inner face of the casing. The inner face of the casing includes a bottom face and a top face opposite to the bottom face. A porosity of the first wick structure is less than that of the second wick structure. A method for manufacturing the flat heat spreader is also provided.
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