Thin-film magnetic head

Details Thin-film magnetic head Thin-film magnetic head

1985-08-05

1987-06-09

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360122, G11B 512, G11B 522

Patent

active

046724958

ABSTRACT:
A thin-film magnetic head includes a substrate composed of a plurality of blocks, a plurality of lower magnetic layers alternating with the blocks, and an upper magnetic layer disposed as a thin film on the blocks across the lower magnetic layers. Each of the lower magnetic layers has a width defining a track width of the magnetic head and a height larger than the width, and the upper magnetic layer has a length extending in the direction of the track width and larger than a yoke length thereof.

REFERENCES:
patent: 4092688 (1978-05-01), Nomura et al.
patent: 4357640 (1982-11-01), Heinz et al.
patent: 4490760 (1984-12-01), Kaminaka et al.

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