Using plated surface for recording media without polishing

Details Using plated surface for recording media without polishing Using plated surface for recording media without polishing

2007-08-14

2007-08-14

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

Reexamination Certificate

active

10775712

ABSTRACT:
Ultra smooth as-deposited composite nickel coatings for use in an information storage system are provided. The composite nickel coatings include an electrolessly deposited nickel layer formed on a sputter deposited nickel layer. The composite nickel coatings have an as-deposited surface roughness of less than about 10 Å. Embodiments include formation of the composite nickel coating on a disk, followed by deposition of an underlayer and magnetic layer thereon to form a magnetic recording medium.

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patent: 6699601 (2004-03-01), Sato et al.
patent: 6986956 (2006-01-01), Nanis

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