Thin film magnetic head with inductive magnetic conversion eleme

Details Thin film magnetic head with inductive magnetic conversion eleme Thin film magnetic head with inductive magnetic conversion eleme

1997-09-04

1999-08-10

Davis, David D.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, G11B 539

Patent

active

059368128

ABSTRACT:
An upper magnetic layer and a lower magnetic layer of an inductive magnetic conversion element constitute pole tips which face opposite each other over a gap layer at their front end portions and have a back gap portion for completing a thin film magnetic circuit at the rear. A magnetoresistive element is provided on a slider below the inductive magnetic conversion element between an upper shield layer positioned above it and a lower shield layer positioned below it. The upper shield layer also constitutes the lower magnetic layer of the inductive magnetic conversion element. The lower shield layer is formed outside a projection area achieved by projecting the back gap portion onto the surface where the lower shield layer is formed.

REFERENCES:
patent: 4881143 (1989-11-01), Bhattacharyya et al.
patent: 4907113 (1990-03-01), Mallary
patent: 4918554 (1990-04-01), Bajorek et al.
patent: 5193039 (1993-03-01), Smith et al.
patent: 5255141 (1993-10-01), Valstyn et al.
patent: 5558944 (1996-09-01), Terunuma
patent: 5703740 (1997-12-01), Cohen et al.

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