Thin film magnetic head

Details Thin film magnetic head Thin film magnetic head

1998-04-10

2000-06-20

Klimowicz, William

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

G11B 539

Patent

active

060784849

ABSTRACT:
A thin film magnetic head includes a shield-type magnetoresistance effect (MR) head section. The shield-type magnetoresistance effect (MR) head section includes: a MR device section within a shield gap, the MR device section exhibiting a giant magnetoresistance effect; and a lead disposed in such a manner that an electric current flows in a direction perpendicular to a film surface of the MR device section. The MR device section includes first and second magnetic films with a non-magnetic insulating film interposed therebetween. The first magnetic film exhibits soft magnetic properties and is disposed at a first distance from a face of the thin film magnetic head opposing a magnetic recording medium. The second magnetic film is disposed at a second distance from the face of the thin film magnetic head opposing the magnetic recording medium such that the second distance is greater than the first distance.

REFERENCES:
patent: 5598308 (1997-01-01), Dieny et al.
patent: 5696656 (1997-12-01), Gill et al.
patent: 5828530 (1998-10-01), Gill et al.
patent: 5867025 (1999-02-01), Allenspach et al.

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