Magnetic recording disk using silicon substrate

Details Magnetic recording disk using silicon substrate Magnetic recording disk using silicon substrate

1984-05-23

1987-06-23

Pianalto, Bernard D.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

2041922, 20419223, 428 64, 428337, 428457, 428641, 428661, 428664, 428667, 428678, 428681, 428694, 428900, 428928, H01F 100

Patent

active

046752404

ABSTRACT:
A magnetic recording disk includes a silicon substrate which is extremely flat and essentially asperity-free. A nonmagnetic underlayer is deposited on the silicon to enhance the magnetic performance of the magnetic layer which is deposited on the underlayer. A protective nonmagnetic overlayer is deposited on the magnetic layer.

REFERENCES:
patent: 3515606 (1970-06-01), Crowther
patent: 3787237 (1974-01-01), Grungerg et al.
patent: 4330582 (1982-05-01), Lindmayer
patent: 4376963 (1983-03-01), Knoop et al.

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