Sputter textured magnetic recording medium

Details Sputter textured magnetic recording medium Sputter textured magnetic recording medium

1997-11-25

1999-11-16

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428212, 428336, 428694TS, 428694TR, 428694ST, 428900, G11B 566

Patent

active

059854103

ABSTRACT:
A magnetic recording medium exhibiting improved glide and CSS characteristics is produced by depositing a metallic layer on a non-magnetic substrate, as by sputtering, so that the deposited metallic layer has a textured surface. In one embodiment, a Ti-base alloy layer having a textured surface comprising a plurality of relatively uniform protrusions is sputter-deposited directly onto a non-magnetic substrate, such as Ni--P coated aluminum-magnesium alloy substrate, or an electrically conductive graphite substrate, and a magnetic layer deposited on the sputtered metallic layer with or without a Cr underlayer.

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