Thin film magnetic head comprising a protective layer

Details Thin film magnetic head comprising a protective layer Thin film magnetic head comprising a protective layer

1990-03-07

1992-07-14

Severin, David J.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

051308789

ABSTRACT:
A regulating plate disposed opposite to a magnetic head with respect to a rotary flexible magnetic disk and in sliding contact with the flexible magnetic disk, having protruding portions provided on the regulating plate at upstream and downstream sides of the magnetic head, top portions of the protruding portions being formed to flat surfaces, thereby obtaining stable sliding contact of the magnetic head with the flexible magnetic disk from the beginning, and a thin film magnetic head comprised at least of a magnetic layer, a coil conductor layer, and an insulative layer formed on a substrate, and a protective layer stacked on the magnetic layer, characterized in that the protective layer comprises MgO, SiO.sub.2, and Al.sub.2 O.sub.3.

REFERENCES:
patent: 4681813 (1987-07-01), Yamada et al.
patent: 4948667 (1990-08-01), Mikami et al.
patent: 4975398 (1990-12-01), Brar et al.

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