Thin-film magnetic head having special input/output terminal bac

Details Thin-film magnetic head having special input/output terminal bac Thin-film magnetic head having special input/output terminal bac

1988-08-12

1990-08-14

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360123, 360125, G11B 5147, G11B 517

Patent

active

049492098

ABSTRACT:
In a thin-film magnetic head having a magnetic core (upper magnetic layer), in the electromagnetic conversion section, which are composed of an upper first magnetic film, inorganic insulating film, and an upper second magnetic film, the upper first magnetic film is used as a second wiring for electrical continuity between the coil and input/output terminal. The upper first magnetic film is connected to the center of a coil which is of a single-layer structure. The first upper magnetic film is made of a same material as the coil and is formed simultaneously with the latter. In the region in which an input/output terminal backing is formed, the upper first magnetic film of a second wiring is removed. Thus, the electrical continuity is established between the input/output terminal and the center of the coil.
Also, the utilization of the upper first magnetic film as second wiring is applicable to a thin-film magnetic head having a coil of a multi-layer structure.

REFERENCES:
patent: 4550353 (1985-10-01), Hirai et al.
patent: 4558385 (1985-12-01), Kaminaka et al.
patent: 4716484 (1987-12-01), Kaminaka et al.
patent: 4780781 (1988-10-01), Sano et al.
patent: 4841402 (1989-06-01), Imanaka et al.

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