Thin film magnetic head

Details Thin film magnetic head Thin film magnetic head

1989-08-25

1991-05-07

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

050141490

ABSTRACT:
A thin film magnetic head used for a magnetic disk device. The thin film magnetic head comprises two magnetic layers, a magnetic insulating layer sandwiched between the magnetic layers, an intermediate magnetic layer which is thinner than the magnetic layers, and an intermediate magnetic insulating layer formed in the vicinity of a gap surface between the intermediate magnetic layer and one of the magnetic layers. A track width in the gap surface of the intermediate magnetic layer is narrower than a track width in the gap surface of the two magnetic layers.

REFERENCES:
patent: 4644432 (1987-02-01), Heim
patent: 4897749 (1990-01-01), Perlov

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