Method for manufacturing magnetic recording medium

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

2007-07-24

2007-07-24

Bashore, Alain L. (Department: 1762)

Coating processes

Magnetic base or coating

Magnetic coating

C427S130000, C427S131000, C427S132000

Reexamination Certificate

active

10924991

ABSTRACT:
A method for manufacturing a magnetic recording medium for efficiently and certainly manufacturing a magnetic recording medium. The magnetic recording medium has a recording layer formed to have predetermined concavo-convex pattern and an adequately flat surface. According to this method, a non-magnetic material is deposited on and filled into a member to be processed 10 by adjusting sputtering conditions in such a manner as to satisfy the following Eq I:in-line-formulae description="In-line Formulae" end="lead"?0.1≦V/V0−0.003×(L·d/t)+1.2 Eq Iin-line-formulae description="In-line Formulae" end="tail"?where V represents a deposition rate which is the film thickness per unit of time, V0represent a deposition rate in a case that the bias power is zero, t represents the film thickness of the deposited non-magnetic material, L represents the width of a recording element, and d represents the depth of a recessed portion between the recording elements.

REFERENCES:
patent: 4994162 (1991-02-01), Armstrong et al.
patent: 6348237 (2002-02-01), Kohler et al.
patent: 6673226 (2004-01-01), Kogan et al.
patent: A 6-89895 (1994-03-01), None
patent: A 7-18431 (1995-01-01), None
patent: A 7-58012 (1995-03-01), None
patent: A 9-97419 (1997-04-01), None
patent: A 10-247308 (1998-09-01), None
patent: A 10-330937 (1998-12-01), None
patent: A 2000-322710 (2000-11-01), None
patent: A 2003-272226 (2003-09-01), None

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