Magnetic disk and method of manufacturing the same
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United States of America Patent
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Jan 26, 2016
Grant Date -
Oct 14, 2010
app pub date -
Mar 27, 2009
filing date -
Mar 30, 2008
priority date (Note) -
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Abstract
Disclosed is a magnetic disk that has excellent durability, particularly excellent LUL durability, and excellent alumina resistance and has a high level of reliability under a low flying height of a magnetic head involved in a recent tendency toward a rapid increase in recording density and a very severe environment resistance requirement due to diversified applications. A magnetic disk (10) comprises a substrate (1) and at least a magnetic layer (6), a carbon-based protective layer (7), and a lubricating layer (8) provided in that order over the substrate (1). The lubricating layer (8) contains a compound that has a perfluoropolyether main chain in the structure thereof and has an aromatic group and a polar group at the end of the molecule.
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