Patent ID: 7826181
Filing Date: 2010-11-02
Classification: B82Y,G11C,H01F,H01L

Abstract:
1. A magnetic element comprising: a ferromagnetic pinned layer having a pinned magnetization orientation, a ferromagnetic free layer having a changeable magnetization orientation, and a tunnel barrier layer therebetween; and a porous non-electrically conducting current confinement layer between the ferromagnetic free layer and the ferromagnetic pinned layer, the porous non-electrically conducting current confinement layer present between the ferromagnetic free layer and the tunnel barrier layer and providing an interface between the ferromagnetic free layer and the tunnel barrier layer, or the porous non-electrically conducting current confinement layer present between the ferromagnetic pinned layer and the tunnel barrier layer and providing an interface between the ferromagnetic pinned layer and the tunnel barrier layer, with the porous non-electrically conducting current confinement layer having a thickness of 2 to 20 Angstroms.