Texture treatment for carbon substrate and for carbon overcoat layer of magnetic disks
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United States of America Patent
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Feb 4, 1997
Issued Date -
N/A
app pub date -
Jun 6, 1994
filing date -
Jul 16, 1993
priority date (Note) -
Expired
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Abstract
A texture treatment for a carbon substrate of a magnetic disk or for a carbon overcoat layer of a magnetic disk is effective to prevent the generation of a stiction phenomenon between a magnetic head and the surface of a magnetic disk. The texture treatment for a carbon substrate or carbon overcoat of a magnetic disk involves the steps of: preparing the carbon disk surface; forming a catalytic material layer on the surface; and performing a heat treatment of the disks in an oxidizing atmosphere. Preferably, islands of catalytic material are formed on the surface by sputtering, and a laser heat treatment is used in an oxidizing atmosphere.
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