Magnetoresistive sensor including magnetic domain control...

Details Magnetoresistive sensor including magnetic domain control... Magnetoresistive sensor including magnetic domain control...

2005-03-22

2005-03-22

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06870718

ABSTRACT:
A magnetoresistive sensor of the type of flowing a signal sensing current perpendicular to the plane to improve resolution at reproducing a signal, a magnetic head using the magnetoresistive sensor, and a magnetic disk apparatus. A magnetoresistive sensor comprising a substrate, a pair of magnetic shield layers consisting of a lower magnetic shield layer and an upper magnetic shield layer, a magnetoresistive sensor layer, disposed between the pair of magnetic shield layers, an electrode terminal for flowing a signal current perpendicular to the plane of the magnetoresistive sensor layer, and magnetic domain control layers for controlling Barkhausen noise of the magnetoresistive sensor layer, wherein the magnetic domain control layers disposed in contact with opposite ends of the magnetoresistive sensor layer consist of a material having high electric resistivity and with a specific resistance not less than 10 mΩcm so as to give the magnetoresistive sensor having excellent reproducing resolution.

REFERENCES:
patent: 5729410 (1998-03-01), Fontana et al.
patent: 6449135 (2002-09-01), Ding et al.
patent: 6633466 (2003-10-01), Sakaguci et al.
patent: 20010021089 (2001-09-01), Miyauchi et al.
patent: 4-358310 (1992-12-01), None
patent: 04 358310 (1992-12-01), None
patent: 05 266437 (1993-10-01), None
patent: 5-266437 (1993-10-01), None
patent: 09 282618 (1997-10-01), None
patent: 9-282618 (1997-10-01), None
patent: 11-316919 (1999-11-01), None
patent: 2000-101164 (2000-04-01), None
patent: 2001-250208 (2001-09-01), None
Tehrani, et al., “Progress and Outlook for MRAM Technology ”, IEEE Transactions on Magnetics, vol. 35, No. 5, Sep. 1999, pp. 2814-2819.

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