Patent ID: 8445979
Filing Date: 2013-05-21
Classification: B82Y,G11C,H01F,H01L

Abstract:
1. A magnetic memory device comprising: a first vertical magnetic layer; a non-magnetic layer on the first vertical magnetic layer; a first junction magnetic layer on the non-magnetic layer wherein the non-magnetic layer is between the first vertical magnetic layer and the first junction magnetic layer; a tunnel barrier on the first junction magnetic layer wherein the first junction magnetic layer is between the non-magnetic layer and the tunnel barrier; a second junction magnetic layer on the tunnel barrier wherein the tunnel barrier is between the first and second junction magnetic layers; and a second vertical magnetic layer on the second junction magnetic layer wherein the second junction magnetic layer is between the tunnel barrier and the second vertical magnetic layer, wherein the first junction magnetic layer directly contacts with the tunnel barrier, and the first junction magnetic layer is exchange coupled with the first vertical magnetic layer by the non-magnetic layer.