Thin-film magnetic head capable of suppressing side fringing

Details Thin-film magnetic head capable of suppressing side fringing Thin-film magnetic head capable of suppressing side fringing

2005-05-24

2005-05-24

Ometz, David L. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

06898056

ABSTRACT:
By forming a step in a lower core layer, the distance between the upper surface of a Gd-defining layer and the lower core layer is changed stepwise. Consequently, the distance between an upper magnetic pole layer formed on the upper surface of the Gd-defining layer and the lower core layer is small in the front region of the lower core layer, and thus a leakage magnetic field from the upper magnetic pole layer is absorbed by the lower core layer and is not applied to a recording medium.

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