Patent ID: 9182460
Filing Date: 2015-11-10
Classification: G01R,G11B,G11C,H01L,Y10T

Abstract:
1. A method of fabricating a magnetoresistive element, the method comprising: forming on a substrate a first plurality of layers such that interfaces of the first plurality of layers are formed without breaking a vacuum, the first plurality of layers comprising: annealing the first plurality of layers; removing the getter layer and a portion of the second ferromagnetic layer adjacent to the getter layer; forming above the second ferromagnetic layer a second plurality of layers such that interface between the second ferromagnetic layer and the second plurality of layers is formed without breaking a vacuum after removing the getter layer and the portion of the second ferromagnetic layer, the second plurality of layers comprising: wherein the first ferromagnetic layer, the tunnel barrier layer, and the second ferromagnetic layer crystallize during annealing into a coherent body-centered cubic (bcc) structure with (001) plane oriented, the first magnetization direction and the second magnetization direction are directed substantially perpendicular to the substrate surface, the second magnetization direction is fixed and is directed antiparallel to the third magnetization direction, and the first magnetization direction is reversible and is controlled by a direction of a spin-polarized current running through the magnetoresistive element in a direction perpendicular to the substrate surface.