Patent ID: 7002197

Claim:
A magnetic memory cell comprising: a magnetic storage element, the magnetic storage element having a plurality of layers including a first magnetoresistive layer and a second magnetoresistive layer and a non-magnetic material layer therebetween; a current control element coupled to the magnetic storage element to control current flow therethrough, the current control element including a first region of material of a first conductive type and a second region of material of a second conductive type and defining a junction therebetween, wherein the junction extends transversely to each of the layers in the magnetic storage element; and wherein the first region of the current control element is in the form of a core and the second region is in the form of a circumferential layer formed on the core, wherein the first and second regions form a pillar structure wherein the pillar structure is disposed within a first conductor line such that the first conductor line surrounds the sides of the pillar structure.