Method and apparatus for manufacturing patterned media

Details Method and apparatus for manufacturing patterned media Method and apparatus for manufacturing patterned media

2006-06-22

2010-06-22

Olsen, Allan (Department: 1792)

Etching a substrate: processes

Forming or treating article containing magnetically...

C156S345330, C427S127000, C427S282000, C427S421100

Reexamination Certificate

active

07740767

ABSTRACT:
According to one embodiment, a method for manufacturing a patterned media includes forming patterns of a magnetic layer having protrusions and recesses corresponding to tracks, servo zones or data zones on a substrate having a center hole, and spraying gas flow produced by diffusing a liquid gas toward the center hole of the substrate before or after forming the patterns of the magnetic layer.

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