Batch fabrication process for magnetic heads

Details Batch fabrication process for magnetic heads Batch fabrication process for magnetic heads

1988-09-01

1990-07-10

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

427130, 427131, G11B 542

Patent

active

049398377

ABSTRACT:
A process for the batch fabrication of an array of shielded magnetoresistive (MR) read transducers comprising the steps of depositing a full film over the entire substrate of a first magnetic shield layer, a first non-magnetic gap layer and sputter depositing a layer of MR sensor material in the presence of a magnetic field for orienting the anisotropy axes of the layers of MR sensor material in a chosen direction. The MR sensor layer and the first gap layer are permitted to produce a plurality of MR read transducers, and the first magnetic shield layer is then patterned to produce a first shield for each of the MR read transducers. A second gap layer and a second shield layer are patterned to produce a second shield for each of the MR read transducers.

REFERENCES:
patent: 4195323 (1980-03-01), Lee
patent: 4354212 (1982-10-01), Nouchi et al.
patent: 4489484 (1984-12-01), Lee

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