Thin film magnetic head with track width restricting groove...

Details Thin film magnetic head with track width restricting groove... Thin film magnetic head with track width restricting groove...

2005-05-31

2005-05-31

Klimowicz, William J (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

06900963

ABSTRACT:
A stopper layer having an etching rate that is lower than a reactive ion etching rate of the insulating layer is provided between the lower core layer and the insulating layer. With this arrangement, a groove that fully reaches the lower core layer can be formed in the insulating layer, and a lower magnetic pole layer can be formed by being properly grown by plating in the groove.

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patent: 256938 (1988-02-01), None

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