Patent ID: 6801414
Filing Date: 2004-10-05
Classification: B82Y,G01R,G11B,G11C,H01F,H01L

Abstract:
A tunnel magnetoresistance effect device, comprising:a first antiferromagnetic material layer containing manganese, a first magnetization fixed layer of ferromagnetic material on the first antiferromagnetic material layer and having a fixed magnetization of a first direction, a first inserted layer on the first magnetization fixed layer and comprising MX, where M is an element selected from the group consisting of manganese, titanium, tantalum, vanadium, aluminum, europium, and scandium, and X is an element selected from the group consisting of oxygen, nitrogen, and carbon, a second magnetization fixed layer of ferromagnetic material on the first inserted layer and having a fixed magnetization of the first direction, a first tunnel barrier layer of dielectric material on the second magnetization fixed layer, and a magnetization free layer of ferromagnetic material on the first tunnel barrier layer.