Shields of magnetoresistive transducers

Details Shields of magnetoresistive transducers Shields of magnetoresistive transducers

1988-06-30

1989-06-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

048435066

ABSTRACT:
An improved shield for field sensing transducers used in magnetic storage devices is presented. The inventive shield provides a planar surface for the transducer to rest on, a single magnetic domain in the vicinity of the transducer, low magnetic reluctance for fields from the recording media, and stability against external magnetic fields, that is, high reluctance for external magnetic fields.

REFERENCES:
patent: 3975772 (1976-08-01), Lin
patent: 4179720 (1979-12-01), Miura
patent: 4447839 (1984-05-01), Dessere et al.
Magnetics of Small Magnetoresistive Sensors by Ching Tsang, J. Appl. Phys. 55(6), Mar. 15, 1984, pp. 2226-2231.

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