Thin film magnetic head intended to decrease inductance with...

Details Thin film magnetic head intended to decrease inductance with... Thin film magnetic head intended to decrease inductance with...

2005-08-09

2005-08-09

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

06927938

ABSTRACT:
The present invention provides a thin film magnetic head in which a first coil layer is formed at the back of a track width control portion. The first coil layer being location nearer a bottom core layer than the junction surface of a track width control portion and an upper core layer. With a two-layer structure, the width of the coil layer can be decreased. The height from the top of the bottom core layer to the top of an insulating layer can be decreased. The insulating layer covering a second coil layer can be decreased, thereby shortening the magnetic path and decreasing inductance.

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patent: 6558561 (2003-05-01), Sasaki
patent: 6597543 (2003-07-01), Saitho et al.

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