Magneto-resistive head

Details Magneto-resistive head Magneto-resistive head

1992-12-03

1995-05-02

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

338 32R, 324252, G11B 5127, G01R 3302

Patent

active

054125243

ABSTRACT:
A hard magnetic thin film magnetized in one direction is disposed on or in the vicinity of a magneto-resistive element upon which inclined electrodes are formed. A magnetic field from the hard magnetic film magnetizes the magneto-resistive element stably so that the element has a single magnetic domain. Thus, the magneto-resistive head is remarkably stable with respect to the disturbance magnetic field and inhibits Barkhausen noise from being produced. As a result, the magneto-resistive head reproduces stably and with an improved S/N ratio.

REFERENCES:
patent: 3840898 (1974-10-01), Bajorek et al.
patent: 4052748 (1977-10-01), Kuijk
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4142218 (1979-02-01), Gorter
patent: 4319188 (1982-03-01), Ito et al.
patent: 4535375 (1985-08-01), Mowry et al.
patent: 4556925 (1985-12-01), Suengaga et al.
patent: 4639806 (1987-01-01), Kira et al.
patent: 5005096 (1991-04-01), Krounbi et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 2, Jul. 1977, Armonk, N.Y., pp. 791-793.

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