Patent ID: 8440330
Filing Date: 2013-05-14
Classification: H01L,Y10T

Abstract:
1. A magnetic tunnel junction cell comprising: a ferromagnetic free layer, a ferromagnetic pinned layer, and a barrier layer therebetween; a ferromagnetic pinning layer positioned adjacent the ferromagnetic pinned layer a protective layer radially around at least the free layer; an electrically insulating isolation layer radially around at least the barrier layer and around the protective layer; an annular layer radially around the electrically insulating isolation layer, the annular layer in contact with the ferromagnetic pinning layer; a first electrode configured to be in electrical contact with the ferromagnetic pinned layer; and a second electrode configured to be in electrical contact with the ferromagnetic free layer, wherein the first electrode and the second electrode are only electrically connected through the ferromagnetic free layer.