Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering
Patent
1994-09-27
1999-02-16
Breneman, R. Bruce
Chemistry: electrical and wave energy
Processes and products
Coating, forming or etching by sputtering
20419216, 427129, 427131, 427132, C23C 1434, B05D 512
Patent
active
058716211
ABSTRACT:
A magnetic disk storage medium (10) includes a smooth non-magnetic substrate (11) having surface roughened by sputter-depositing a continuous nonmagnetic rough thin film ("texture film") (14) over the substrate. The sputter conditions and composition of the texture film (14) are chosen to give a desired roughness and areal density of asperities. A sputtered adhesion layer (12) and/or a sputtered capping layer (15) are included to control the growth of the texture film and to improve its mechanical properties, respectively. A non-magnetic underlayer, a magnetic layer and a protective layer are then sputtered sequentially over the roughened substrate.
REFERENCES:
patent: 4743491 (1988-05-01), Asada et al.
patent: 4950548 (1990-08-01), Furusawa et al.
patent: 5132173 (1992-07-01), Hashimoto et al.
Translation of 62-256215 Kono et al., Jul. 1987.
Breneman R. Bruce
Komag Incorporated
McDonald Rodney G.
LandOfFree
Method of fabricating a textured magnetic storage disk does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of fabricating a textured magnetic storage disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fabricating a textured magnetic storage disk will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2058993