Integrated thin film magnetic head with planar structure

Details Integrated thin film magnetic head with planar structure Integrated thin film magnetic head with planar structure

1991-12-20

1993-09-21

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360126, G11B 5265, G11B 531

Patent

active

052474143

ABSTRACT:
Thin film magnetic head structure includes digital read/write heads and analog read heads integrated on a single substrate. The "wrap around pole effect" is reduced or eliminated by having the thicknesses of the digital lower flux guides and the analog read gap-defining layer approximately the same, resulting in improved signal output from the digital read heads. The structure is useful in cassette decks designed to play both digital and analog compact cassettes.

REFERENCES:
patent: 4517616 (1985-05-01), Bischoff
patent: 4872079 (1989-10-01), Roberts
patent: 5014414 (1991-05-01), Matsuzawa et al.
patent: 5027245 (1991-06-01), Nagata et al.
patent: 5042140 (1991-08-01), Coutellier et al.

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