Thin film transducer head for inductive recording and magnetores

Details Thin film transducer head for inductive recording and magnetores Thin film transducer head for inductive recording and magnetores

1983-04-04

1985-11-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360125, G11B 512

Patent

active

045557403

ABSTRACT:
A thin film transducer is provided for inductively recording and magnetoresistively reading magnetic information. The thin film magnetoresistive (MR) element is mounted on a bottom yoke member and is provided with means, which may be a pair of legs of the MR material extending in the same direction, so as to define a single magnetic domain in the MR element. The read conductor is provided in the form of a "barber pole" so that the angled transducer gap thereof overlies the magnetic domain in the MR element. The bottom yoke is a planar surface essentially dimensionless with respect to the other elements of the transducer head while the top yoke is specifically shaped so as to have a tail portion which overlies the write conductor and is parallel to the transducer gap in the read conductor.

REFERENCES:
patent: 3813692 (1974-05-01), Brock et al.
patent: 3814863 (1974-06-01), O'Day
patent: 4001890 (1977-01-01), Kayser
patent: 4255772 (1981-03-01), Perez et al.
patent: 4504880 (1985-03-01), Church et al.

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