Soft-film-bias type magnetoresitive device

Details Soft-film-bias type magnetoresitive device Soft-film-bias type magnetoresitive device

1987-11-24

1989-03-21

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 5127

Patent

active

048149195

ABSTRACT:
A soft-film-bias type magnetoresistive device is disclosed in which a high-permeability magnetic film, an insulating film and a permalloy film are formed on a substrate in this order, and first, second and third electrodes, which are parallel to each other, are provided on the permalloy film, to form a differential type magnetoresistive device. In this magnetoresistive device, a bias magnetic field which is generated and applied to the permalloy film between the first and second electrodes, is opposite in direction to a bias magnetic field which is generated and applied to the permalloy film between the second and third electrodes.

REFERENCES:
patent: 4277808 (1981-07-01), Nagaki
patent: 4503394 (1985-03-01), Kawakami et al.
patent: 4626946 (1986-12-01), Vinal
patent: 4639806 (1987-01-01), Kira et al.
patent: 4663684 (1987-05-01), Kamo et al.

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