Zone textured magnetic recording media and methods for their production
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United States of America Patent
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-
Feb 26, 2002
Grant Date -
May 3, 2001
app pub date -
Dec 22, 2000
filing date -
Jun 23, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Magnetic recording media-are provided having separately textured data and read/write head landing zones. Separating these zones on the recording surface allows independent optimization of the topology to maximize both recording characteristics and mechanical durability. The landing or contact start stop zone has an average surface roughness greater than that of the data zone. Preferably, a transition zone extends between the contact start stop zone and the data zone, the transition zone varying between the two in average surface roughness. Preferably, the contact start stop zone is textured first, followed by the data zone, thereby ensuring uniform stiction performance. Texture machines for producing such zone texturing and texturing methods are also provided.
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