Method of making a magnetoresistive read transducer having hard

Details Method of making a magnetoresistive read transducer having hard Method of making a magnetoresistive read transducer having hard

1990-12-18

1992-01-07

Hall, Carl E.

Coating processes

Magnetic base or coating

Magnetic coating

21603, 360113, 427131, G11B 542

Patent

active

050790358

ABSTRACT:
A magnetoresistive (MR) read transducer having passive end regions separated by a central active region in which an MR layer is formed which extends over substantially only the central active region and in which a hard magnetic layer is formed in each end region. The hard magnetic layers form an abutting junction having electrical and magnetic continuity with the MR layer to produce a longitudinal bias in the MR sensor. The transducer is produced by a method in which the same stencil defines the extent of both the MR layer and the hard magnetic layers so that the abutting junctions are formed easily and reliably.

REFERENCES:
patent: 4940511 (1990-07-01), Fontana, Jr. et al.
patent: 4992901 (1991-02-01), Keel et al.

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