Texturing of a landing zone on glass-based substrates by a chemical etching process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 2002
Grant Date -
N/A
app pub date -
Sep 7, 1999
filing date -
Sep 7, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for manufacturing a magnetic disk comprises the acts of a) applying a laser beam to at least a portion of a silica-containing substrate, thereby forming a set of bumps or ridges; b) etching the substrate to remove the ridges and form a set of valleys where the ridges were previously formed; and c) depositing an underlayer, a magnetic layer, and a protective overcoat on the substrate. A lubricant layer is then formed on the disk. The valleys formed in the substrate reduce stiction exhibited by the magnetic disk. However, the valleys do not interfere with the fly height of a read-write head used in conjunction with the magnetic disk.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully