Magnetic recording medium with corrosion resistance and manufacturing method
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United States of America Patent
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May 18, 2010
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app pub date -
Oct 26, 2005
filing date -
Oct 28, 2004
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Abstract
A magnetic recording medium with a granular magnetic recording layer excellent in corrosion resistance is provided. In one embodiment, after formation of, on a non-magnetic substrate, an NiTa adhesion layer, a soft magnetic layer, a Ta intermediate layer, an Ru intermediate layer, and a Co alloy granular magnetic recording layer, hydrogen (H.sub.2) plasma processing is applied to the surface of the Co alloy granular magnetic recording layer. Then, a DLC protective film layer is formed and a lubricant layer is coated.
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