Etching a substrate: processes – Forming or treating article containing magnetically...
Reexamination Certificate
2005-03-01
2009-06-30
Norton, Nadine G (Department: 1792)
Etching a substrate: processes
Forming or treating article containing magnetically...
C216S067000, C427S599000
Reexamination Certificate
active
07553426
ABSTRACT:
An apparatus, system, and method are disclosed for increasing data storage density in patterned media. One or more deposition sources may apply magnetic material to one or more recesses formed in a substrate, each recess having opposing sidewalls that are effectively coated by the deposition sources. The top surface of the substrate may subsequently be planarized to remove magnetic material from such surface, thereby isolating one or more recordable magnetic regions formed on each sidewall. In this manner, the present invention may provide at least two recordable regions for every recess formed in a substrate.
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Albrecht Thomas Robert
Yang Henry Hung
Dahimene Mahmoud
Hitachi Global Storage Technologies - Netherlands B.V.
Kunzler & McKenzie
Norton Nadine G
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