Self-pinned abutted junction heads having an arrangement of...

Details Self-pinned abutted junction heads having an arrangement of... Self-pinned abutted junction heads having an arrangement of...

2006-08-29

2006-08-29

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07099123

ABSTRACT:
A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. The head includes a sandwiched hard bias layer having a first hard bias layer coupled to a free layer and a second, anti-parallel hard bias layer disposed away form the free layer to provide a net longitudinal bias on the free layer.

REFERENCES:
patent: 5018037 (1991-05-01), Krounbi et al.
patent: 5583725 (1996-12-01), Coffey et al.
patent: 6146776 (2000-11-01), Fukuzawa et al.
patent: 6252750 (2001-06-01), Gill
patent: 6266218 (2001-07-01), Carey et al.
patent: 6324037 (2001-11-01), Zhu et al.
patent: 6344953 (2002-02-01), Kautzky et al.
patent: 6348274 (2002-02-01), Kamiguchi et al.
patent: 6385017 (2002-05-01), Min et al.
patent: 6433972 (2002-08-01), Mao et al.
patent: 2001/0004798 (2001-06-01), Gill
patent: 2001/0026425 (2001-10-01), Miyazawa et al.
patent: 2002/0024780 (2002-02-01), Mao et al.
patent: 2002/0085323 (2002-07-01), Smith et al.
patent: 2002/0149889 (2002-10-01), Gill
patent: 2002/0154455 (2002-10-01), Lenssen
patent: 2002/0154456 (2002-10-01), Carey et al.
patent: 2002/0154457 (2002-10-01), Horng et al.
patent: 11045415 (1999-02-01), None
Takahashi, M., Maeda, T., Inage, K., Sakai, M., Morita, H., and Matsuzaki, M., “EDS Induced Pinned Layer Reversal in Spin-Valve GMR Heads,”IEEE Transactions on Magnetics, vol. 34, No. 4., Jul. 1998.
Hung, Silas T., Wong, C.Y., Osborn, Mark, Kagaoan, Joel, Zhang, L.Z., and Bordeos, Randy, “A Study of GMR Read Sensor Induced by Soft EDS Using Magnetoresistive Sensitivity Mapping (MSM).”
Liao, C.C.; Ho, C.H.; Huang, R. -T.; Chen, F.-R.; Kai, J.J.; Chen, L.-C.; Lin, M.-T.; and Yao, Y.D., “Thermal Stability Study of the Insulator Layer in NiFe/CoFe/Al2O3/Co Spin-Dependent Tunnel Junction,”Journal of Magnetism and Magnetic Materials, vol. 239, No. 1-3, pp. 116-119, Feb. 2002.
Cardoso, S.; Freitas, P.P.; de Jesus, C.; and Soares, J.C., “High Thermal Stability Tunnel Junctions,”Journal of Applied Physics, vol. 87, No. 9, pp. 6058-6060, May 2000.
Cardoso, S.; Freitas, P.P.; Zhang, Z.G.; Wei, P.; Barradas, N.; and Soares, J.C., “Electrode Roughness and Interfacial Mixing Effects on the Tunnel Junction Thermal Stability,”Journal of Applied Physics, vol. 89, No. 11, pp. 6650-6652, Jun. 2001.

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