Process for improving corrosion resistance of thin-film...

Details Process for improving corrosion resistance of thin-film... Process for improving corrosion resistance of thin-film...

2008-04-22

2008-04-22

Fletcher, III, William Phillip (Department: 1792)

Coating processes

Magnetic base or coating

Magnetic coating

C427S350000, C427S430100, C427S255600

Reexamination Certificate

active

10358164

ABSTRACT:
A method for increasing the corrosion resistance of a data/information storage and retrieval medium comprises sequential steps of:(a) providing a thin film data/information storage retrieval medium comprising, in overlying sequence:(i) a non-magnetic substrate;(ii) a layer stack including at least one magnetic layer; and(iii) a protective overcoat layer comprising a plurality of pores and/or channels extending therethrough;(b) maintaining the medium at an elevated temperature in a reduced pressure environment for an interval sufficient to remove moisture contained in the pores and/or channels of the protective overcoat layer; and(c) filling the pores and/or channels of said protective overcoat layer with a hydrophobic material.

REFERENCES:
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patent: 5331487 (1994-07-01), Gregory et al.
patent: 5545478 (1996-08-01), Lin et al.
patent: 6183831 (2001-02-01), Hughes et al.
patent: 6355300 (2002-03-01), Stirniman et al.
patent: 6613151 (2003-09-01), Stirniman et al.
patent: 6808741 (2004-10-01), McLeod

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