Multi-track thin film magnetic head

Details Multi-track thin film magnetic head Multi-track thin film magnetic head

1976-07-27

1978-05-30

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360123, 360126, 360 66, G11B 528, G11B 520, G11B 547

Patent

active

040926885

ABSTRACT:
A bias conductor layer for a bias current path extends through the gaps of a plurality of unit thin-film magnetic heads, which are placed side by side over signal conductor layers. A spacer layer is provided between upper and lower magnetic material layers and extends over the area including the gaps formed between the bias conductor layer and the signal conductor layers, and an additional thickness of spacer material is provided at the gaps so that the distance between the upper and lower magnetic material layers is increased and therefore magnetic short-circuiting is avoided.

REFERENCES:
patent: 3639699 (1972-02-01), Tiemann
patent: 3723665 (1973-03-01), Lazzari et al.
patent: 3829896 (1954-08-01), Brock et al.
patent: 3846841 (1974-11-01), Lazzari et al.
patent: 3846842 (1974-11-01), Lazzari et al.
patent: 3891995 (1975-06-01), Hanazono et al.
patent: 3987488 (1976-10-01), Kanai et al.
IBM Tech. Disc. Bulletin, Thompson, Multigap Recording Head, vol. 12, No. 10, Mar. 1970, p. 1555.

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