Method for manufacturing a magnetic recording medium

Details Method for manufacturing a magnetic recording medium Method for manufacturing a magnetic recording medium

2007-09-25

2007-09-25

Olsen, Allan (Department: 1763)

Etching a substrate: processes

Forming or treating article containing magnetically...

C216S038000, C216S039000, C216S066000, C216S072000

Reexamination Certificate

active

11048728

ABSTRACT:
A method for manufacturing a magnetic recording medium is provided, which can efficiently manufacture a magnetic recording medium that includes a recording layer formed in a concavo-convex pattern and has good recording and reproduction characteristics. The method includes: a non-magnetic material filling step of depositing a non-magnetic material over a recording layer formed in a predetermined concavo-convex pattern over a substrate so as to fill a concave portion of the concavo-convex pattern with the non-magnetic material; and a flattening step of removing the excess part of the non-magnetic material above the recording layer by dry etching so as to flatten the surfaces of the non-magnetic material and the recording layer. The flattening step includes a former flattening step and a latter flattening step for finishing.

REFERENCES:
patent: 4614563 (1986-09-01), Kubo
patent: 4676868 (1987-06-01), Riley et al.
patent: 6014296 (2000-01-01), Ichihara et al.
patent: 6305072 (2001-10-01), Yoda et al.
patent: 2005/0086795 (2005-04-01), Suwa et al.
patent: A 57-050436 (1982-03-01), None
patent: A 61-227183 (1986-10-01), None
patent: A 06-162448 (1994-06-01), None
patent: A 9-97418 (1997-04-01), None

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