Electrical resistors – Resistance value responsive to a condition – Magnetic field or compass
Patent
1993-05-06
1994-08-23
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Magnetic field or compass
324252, H01L 4300
Patent
active
053411188
ABSTRACT:
A multilayer magnetoresistive (MR) sensor formed on a substrate includes alternating layers of a ferromagnetic material and a non-magnetic metallic material. The ferromagnetic material and the non-magnetic material form bilayers which exhibit the property that the magnetoresistance of the multilayered structure oscillates as a function of thickness of the non-magnetic material. A current flow is produced through the MR sensor, and the variations in the resistivity of the MR sensor are sensed as a function of the magnetic field being sensed.
REFERENCES:
patent: 3818328 (1974-06-01), Zinn
patent: 3848217 (1974-11-01), Lazzari
patent: 3898359 (1975-08-01), Nadkarni
patent: 4141051 (1979-02-01), Kuijk al.
patent: 4604176 (1986-08-01), Paul
patent: 4663607 (1987-05-01), Kitada et al.
patent: 4686472 (1987-08-01), Van Ooijen et al.
patent: 4912451 (1990-03-01), Sugiyama et al.
patent: 4949039 (1990-08-01), Grunberg
patent: 4950988 (1990-08-01), Garshelis
patent: 5206590 (1993-04-01), Dieny et al.
Suits, "High Magnetic Field Measuring Devices", IBM/TDB, vol. 7, No. 6, Nov. 1964, p. 427.
G. Binasch et al., "Enhanced Magnetoresistance in Layered Magnetic Structures with Antiferromagnetic Interlayer Exchange", Physical Review B., vol. 39, Mar. 1, 1989, pp. 4828-4830.
P. Grunberg et al., "Layered Magnetic Structures: Exchange Coupling of Ferromagnetic Layers Across Interlayers", MRS Intl. Mtg. Adv. Mats., vol. 10, no month, 1989, pp. 255-267.
Parkin Stuart S. P.
Roche Kevin P.
International Business Machines - Corporation
Lateef Marvin M.
Murray Leslie G.
Schmid, Jr. Otto
LandOfFree
Multilayer magnetic structure wherein the magnitude of the struc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multilayer magnetic structure wherein the magnitude of the struc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer magnetic structure wherein the magnitude of the struc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-505572