Magnetic disc apparatus

Details Magnetic disc apparatus Magnetic disc apparatus

1994-12-07

1997-09-16

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 5127

Patent

active

056686854

ABSTRACT:
A magnetic disc apparatus is disclosed, in which a magneto-resistance effect film converts a magnetic signal into an electrical signal by use of the magneto-resistance effect, a pair of electrodes supplies a signal detection current to the magneto-resistance effect film, and a magnetic domain control layer controls the magnetic domain of the magneto-resistance effect film. The magneto-resistance effect film, the electrodes and the magnetic domain control layer constitute a magnetic head of magneto-resistance effect type. An isolation film is formed in a magneto-sensitive portion of the magneto-resistance effect film between the magneto-resistance effect film and the magnetic domain control layer to break the magnetic coupling between the magneto-resistance effect film and the magnetic domain control layer.

REFERENCES:
patent: 4639806 (1987-01-01), Kira
patent: 4713708 (1987-12-01), Krounbi et al.
patent: 4825325 (1989-04-01), Howard
patent: 4940511 (1990-07-01), Fontana, Jr. et al.
patent: 5218497 (1993-06-01), Tanabe et al.
patent: 5329413 (1994-07-01), Kondoh et al.

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