Planar thin-film magnetic head and manufacturing method therefor

Details Planar thin-film magnetic head and manufacturing method therefor Planar thin-film magnetic head and manufacturing method therefor

1998-02-02

2000-08-15

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

061045756

ABSTRACT:
A planar thin-film magnetic head including a lower magnetic pole having a first end portion and a second end portion, and an upper magnetic pole having a first end portion magnetically joined to the first end portion of the lower magnetic pole and a second end portion. A gap is defined between the second end portion of the lower magnetic pole and the second end portion of the upper magnetic pole. The thin-film magnetic head further includes a coil having a center positioned in the vicinity of the gap and spirally formed so as to pass between the upper magnetic pole and the lower magnetic pole. The coil is embedded in an insulating layer.

REFERENCES:
patent: 4837924 (1989-06-01), Lazzari
patent: 4949207 (1990-08-01), Lazzari

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