Thin-film-type magnetic head device

Details Thin-film-type magnetic head device Thin-film-type magnetic head device

1989-01-04

1990-12-25

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 531

Patent

active

049807889

ABSTRACT:
A thin-film-type magnetic head device for magnetically recording and/or reproducing signals in and from a magnetic recording medium has a lower magnetic layer, an insulating layer, a thin-film-type coil and an upper magnetic layer which are formed sequentially on a substrate such that a magnetic circuit is formed by the upper and lower magnetic layers. The upper and lower magnetic layers partially abut each other to provide a magnetic coupling therebetween. At least one slit formed in the region where the upper and lower magnetic layers abut each other, so as to suppress generation of eddy currents in the magnetic layers in the region.

REFERENCES:
patent: 4719527 (1988-01-01), Yoshisato et al.

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