LOW ROUGHNESS HEATSINK DESIGN FOR HEAT ASSISTED MAGNETIC RECORDING MEDIA
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Mar 31, 2011
filing date -
Mar 31, 2011
priority date (Note) -
Abandoned
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Abstract
A magnetic recording medium comprises a substrate; a heatsink layer comprising a layer of crystallized CuTi; and a hard magnetic recording layer. The crystallized CuTi is applied in an amorphous state and then crystallized through heating. The use of this heatsink improves surface and underlayer roughness compared to previous heatsink designs.
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