Magnetic recording medium having an enhanced diamond bonding ratio and a method for the manufacture thereof
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United States of America Patent
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Mar 25, 1997
Grant Date -
N/A
app pub date -
Oct 28, 1993
filing date -
Oct 28, 1992
priority date (Note) -
Expired
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Abstract
A magnetic recording medium and a method for the manufacture thereof are disclosed that are less likely to result in head crushing even if high-hardness slider materials are used, and which is formed with a carbon protective layer that has good anti-CSS characteristics. The carbon protective layer is formed using a sputtering gas mixed with methane at a greater amount than predetermined to form a carbon protective layer in which diamond bonds are present at a higher ratio than graphite bonds, and polymeric bonds are present to an adequate degree. A magnetic recording medium having such a carbon protective layer shows a very high durability in a CSS cycle test.
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