CPP-type magnetic head with less deformation and a magnetic...

Details CPP-type magnetic head with less deformation and a magnetic... CPP-type magnetic head with less deformation and a magnetic...

2006-12-26

2006-12-26

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S319000, C360S320000, C360S324200

Reexamination Certificate

active

07154713

ABSTRACT:
A high output, magnetoresistive head with a CPP structure is disclosed which reduces or prevents deformation near the air bearing surface of the read element portion layer at the time of air bearing surface processing. In the CPP structure magnetoresistive head, the deformation near the air bearing surface as a result of mechanical polishing during the air bearing surface processing can be reduced by forming deformation prevention layers having a higher shear modulus than the first ferromagnetic layer, and a second ferromagnetic layer between a magnetoresistive film and at least one of a lower shield layer and an upper shield layer.

REFERENCES:
patent: 5930087 (1999-07-01), Brug et al.
patent: 6759081 (2004-07-01), Huganen et al.
patent: 6765768 (2004-07-01), Saito
patent: 6801408 (2004-10-01), Chen et al.
patent: 6826022 (2004-11-01), Umetsu
patent: 6842969 (2005-01-01), Dovek et al.
patent: 11-175920 (1997-12-01), None
patent: 11-175927 (1997-12-01), None
patent: 2000-215415 (1999-01-01), None
patent: 2001-28108 (1999-09-01), None
patent: 2002-133614 (2000-10-01), None
T. Miyazaki and N, Tezuka, “Giant Magnetic Tunneling Effect in Fe/Al2O3/Fe Junction”, Journal of Magnetism and Magnetic Materials, 139 (1995), pp. L231-L234.
K. Nagasaka, Y. Seyama, L. Varga, Y. Shimizu and A. Tanaka, “Giant Magnetroresistance Properties of Specular Spin Valve Films in a Current Perpendicular to Plane Structure”, Journal of Applied Physics, vol. 89, No. 11, (Jun. 1, 2001), pp. 6943-6945.

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