Method of manufacturing a magnetoresistive sensor

Details Method of manufacturing a magnetoresistive sensor Method of manufacturing a magnetoresistive sensor

1995-04-06

1996-02-20

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427132, B05D 512

Patent

active

054927200

ABSTRACT:
In a magnetoresistive (MR) read sensor in which the MR layer is transversely biased by a soft magnetic layer separated from the MR layer by a nonmagnetic spacer layer an antiferromagnetic stabilization layer of NiO provides a stabilizing exchange-coupled magnetic field to the transverse bias layer insuring that the transverse bias layer is fully saturated in a preferred direction during sensor operation.

REFERENCES:
patent: 4663685 (1987-05-01), Tsang
Ching Tsang, "Magnetics of small magnetoresistive sensors (invited)", J. Appl, Phys. 55(6), pp. 2226-2231 Mar. 15, 1984.
M. J. Carey & A. E. Berkowitz, "Exchange Aristoropy in Coupled Films of Ni.sub.81 Fe.sub.19 With NiO and Co.sub.x Ni.sub.1-x O", Appl. Phys. Lett., vol. 60, No. 24, pp. 3060-3062 Jun. 15, 1992.
S. Soeya et al. "Magnetic Properties of NiO/NiFe Exchange Coupled Films", 1991. (no month avail.).
S. Soeya et al., "A Magnetization Mechanism of Exchange-Coupled Double Layered Films", 1992. (No month avail.).
S. Soeya et al., "Magnetic Properties of the Exchange Coupled Permalloy/Low Bs Ferromagnetic/Antiferromagnetic Films", 1992. (No month avail.).
S. Soeya et al., "Magnetic Properties of the Exchange Coupled NiFe/NiO Films", 1993. (No month available).

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