Thin-film magnetic head

Details Thin-film magnetic head Thin-film magnetic head

1996-07-24

1998-01-13

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

057085420

ABSTRACT:
A magnetoresistance effect thin-film magnetic head superior in magnetic stability and capable of developing a high playback power. The thin-film magnetic head has a magnetoresistance effect stabilizing layer 11 inclusive a diamagnetic film or a hard magnetic film, a non-magnetic insulating layer 12 and a magnetoresistance effect layer 13 inclusive of a magnetoresistance effect film, layered together to form a magnetoresistance effect element 3. The thin-film magnetic head also has a non-magnetic insulating layer 4 arranged on a lateral surface of the magnetoresistance effect element 3 and a pair of electrodes connected to the magnetoresistance effect layer 13 on both ends of the upper surface of the magneto-resistance effect element 3. The playback signals are detected by the magnetoresistance effect of the magnetoresistance effect layer 13.

REFERENCES:
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patent: 5304975 (1994-04-01), Saito et al.
patent: 5329413 (1994-07-01), Kondoh et al.
patent: 5432734 (1995-07-01), Kawano et al.
patent: 5492720 (1996-02-01), Gill et al.
patent: 5532892 (1996-07-01), Nix et al.
Patent Abstracts of Japan, vol. 018, No. 014 (P-1672, Jan. 11, 1994 & JP-A-05 250642 (Toshiba Corp.), Sep. 28, 1993.
Patent Abstracts of Japan, vol. 017, No. 016 (P-1468), Jan. 12, 1993 & JP-A-04 245011 (Hitachi Ltd.), Sep. 1, 1992.
IBM Technical Disclosure Bulletin, Magnetically Coupled Barberpole MR Head With Built In Longitudinal Bias Structure and Process, vol. 20, No. 2, Jul. 1977, New York, U.S. pp. 791-793, XP002019916, Anonymous.

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