Smooth structures for heat-assisted magnetic recording media

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United States of America Patent

PATENT NO 9449633
SERIAL NO

14535130

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Abstract

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A recording medium having improved signal-to-noise ratio (SNR) capabilities and head-disk interface characteristics includes an etched smoothened underlayer, over which the recording layer is grown. One mechanism for increasing the SNR is by growing more columnar magnetic grain structures within the recording layer, which is facilitated by a smoother underlayer template.

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WESTERN DIGITAL TECHNOLOGIES INC5601 GREAT OAKS PARKWAY SAN JOSE CA 95119

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Acharya, B Ramamurthy Fremont, US 42 1285
Ajan, Antony Santa Clara, US 44 698
Pirzada, Shahid Fremont, US 6 540
Seki, Tomoko Sunnyvale, US 17 290

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