Magnetic tunnel junction device and method of making same
First Claim
Patent Images
1. A magnetic tunnel junction (MTJ) device, comprising:
- a reference layer having a surface;
a tunnel insulating layer formed over the surface of the reference layer;
a free layer formed over the tunnel insulating layer, a magnetization direction in each of the reference layer and the free layer being substantially perpendicular to the surface; and
a magnetic field providing layer formed over the free layer, configured to provide a lateral magnetic field in the free layer, the lateral magnetic field being substantially parallel to the surface, and the magnetic field providing layer including;
an isolation spacer layer formed over the free layer;
a ferromagnetic layer formed over the isolation spacer layer, a magnetization direction in the ferromagnetic layer being substantially parallel to the surface; and
an antiferromagnetic layer formed between the isolation spacer layer and the ferromagnetic layer.
1 Assignment
0 Petitions
Accused Products
Abstract
A magnetic tunnel junction (MTJ) device includes a reference layer having a surface, a tunnel insulating layer formed over the surface of the reference layer, a free layer formed over the tunnel insulating layer, and a magnetic field providing layer formed over the free layer. A magnetization direction in each of the reference layer and the free layer is substantially perpendicular to the surface. The magnetic field providing layer is configured to provide a lateral magnetic field in the free layer, the lateral magnetic field being substantially parallel to the surface.
48 Citations
8 Claims
-
1. A magnetic tunnel junction (MTJ) device, comprising:
-
a reference layer having a surface; a tunnel insulating layer formed over the surface of the reference layer; a free layer formed over the tunnel insulating layer, a magnetization direction in each of the reference layer and the free layer being substantially perpendicular to the surface; and a magnetic field providing layer formed over the free layer, configured to provide a lateral magnetic field in the free layer, the lateral magnetic field being substantially parallel to the surface, and the magnetic field providing layer including; an isolation spacer layer formed over the free layer; a ferromagnetic layer formed over the isolation spacer layer, a magnetization direction in the ferromagnetic layer being substantially parallel to the surface; and an antiferromagnetic layer formed between the isolation spacer layer and the ferromagnetic layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification