Method of producing magnetic disc

Details Method of producing magnetic disc Method of producing magnetic disc

1986-09-30

1988-10-11

Pianalto, Bernard D.

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

2041922, 427131, 427132, 427258, 427282, 428 64, 428694, 428900, 428928, C23C 1400

Patent

active

047769386

ABSTRACT:
A magnetic disc comprises a non-magnetic underlayer formed on a substantially flat surface of a substrate by growing grains of a magnetic material in a circumferential direction of the magnetic disc, and a magnetic layer formed on the non-magnetic underlayer, where the magnetic easy axis of the magnetic layer is oriented in the circumferential direction of the magnetic disc. A method of producing the magnetic disc forms the magnetic layer so that the magnetic easy axis thereof becomes oriented in the circumferential direction of the magnetic disc.

REFERENCES:
"Oblique-Incidence Anistropy in Evaporated Permalloy Films" by D. O. Smith, M. S. Cohen and G. P. Weiss, Journal of Applied Physics, vol. 31, No. 10, Oct. 1960.

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