Manufacturing method for magnetoresistive head having an antifer

Details Manufacturing method for magnetoresistive head having an antifer Manufacturing method for magnetoresistive head having an antifer

1997-02-10

1998-07-21

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Hall effect

2960314, 427130, G11B 539, G11B 5127, B05D 512

Patent

active

057842256

ABSTRACT:
The present invention provides a magnetoresistive head wherein: a magnetoresistive film is created in a read-track region at the center of the magnetoresistive head; an antiferromagnetic film and a ferromagnetic film experiencing an exchange coupling magnetic field due to direct contact with the antiferromagnetic film are created on each end of the magnetoresistive film outside the read-track region in such a way that the ferromagnetic film is located beside the magnetoresistive film; a nonmagnetic intermediate film is created between the magnetoresistive film and the ferromagnetic film for preventing ferromagnetic coupling from being developed on a contact boundary surface between the magnetoresistive film and the ferromagnetic film and for making crystal orientations of the antiferromagnetic film and the ferromagnetic film uniform; and bias magnetization is applied to the magnetoresistive film by exchange coupling between the antiferromagnetic film and the ferromagnetic film.

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patent: 5344669 (1994-09-01), Chen
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patent: 5529814 (1996-06-01), Tan

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