Method for preparing a substrate for a magnetic disk
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United States of America Patent
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Apr 21, 1998
Issued Date -
N/A
app pub date -
Nov 5, 1996
filing date -
Jun 3, 1996
priority date (Note) -
Expired
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Abstract
A method for manufacturing a magnetic disk comprises the step of depositing a metallic layer on a glass substrate and laser texturing the metallic layer. The magnetic disk is then completed by deposition of (a) an underlayer such as Cr or sputtered NiP, (b) a magnetic layer such as a Co or Fe alloy, and (c) a protective overcoat such as ZrO.sub.2, carbon or hydrogenated carbon. By providing the above-mentioned metallic layer, laser texturing can now be used in conjunction with glass substrates.
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