Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1997-07-23
2000-06-20
Kiliman, Leszek
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428336, 428694TS, 428394TP, 428394TM, 428611, 428668, 428673, 428674, 428900, 360103, 360135, G11B 566
Patent
active
06077603&
ABSTRACT:
A seed layer is deposited under an underlayer in magnetic thin film media. The seed layer material has a similar lattice parameter and a similar crystal structure to the underlayer material. The preferred structure involves a nickel-aluminum seed layer, under a chromium underlayer, under a cobalt-based magnetic layer. Use of the nickel-aluminum seed layer produces higher coercivity and lower media noise in the resultant magnetic thin film. The coercivity and media noise values for the resultant magnetic thin film are dependent upon deposition parameters, and recommended deposition parameters are given.
REFERENCES:
patent: 4631202 (1986-12-01), Opfer et al.
patent: 5482785 (1996-01-01), Mahvan et al.
patent: 5494722 (1996-02-01), Oka et al.
patent: 5576085 (1996-11-01), Lal et al.
patent: 5631094 (1997-05-01), Ranjan et al.
patent: 5693426 (1997-12-01), Lee et al.
patent: 5700593 (1997-12-01), Okumura et al.
patent: 5800931 (1998-09-01), Lee
CoCrPt Media on HCP Intermediate Layers, Fang et al., Data Storage Systems Center Review Presentations, Nov. 1, 1994.
A Study of Magnetic Recording Media on Glass Substrates, Shalin Duan et al., IEEE Transactions on Magnetics, vol. 30, No. 6, Nov. 1994.
NiAl Underlayers for CoCrTa Magnetic Thin Films, Li-Lien Lee et al., IEEE Transactions on Magnetics, vol. 30, No. 6, Nov. 1994.
High Coervicity and Low Noise Media Using Glass Substrate, Xiaoxia Tang et al., IEEE Transactions on Magnetics, vol. 30, No. 6, Nov. 1994.
Kiliman Leszek
Seagate Technology Inc.
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