Patent ID: 8391053

Claim:
A magnetic random access memory (MRAM) cell with a thermally assisted switching (TAS) writing procedure, comprising: a magnetic tunnel junction formed from a ferromagnetic storage layer having a first magnetization adjustable at a high temperature threshold, an antiferromagnetic storage layer which pins the first magnetization of the ferromagnetic storage layer, a ferromagnetic reference layer having a fixed second magnetization direction, and an insulating layer, said insulating layer being disposed between the ferromagnetic storage and reference layers, wherein the magnetocrystalline anisotropy of the ferromagnetic storage layer is essentially orthogonal to the magnetocrystalline anisotropy of the ferromagnetic reference layer and the magnetocrystalline anisotropy of the antiferromagnetic storage layer such that the first magnetization is oriented substantially orthogonal to the direction of the second magnetization of the ferromagnetic reference layer when the magnetic tunnel junction is heated to the high temperature threshold; a select transistor being electrically connected to said magnetic tunnel junction and controllable via a word line; and a current line electrically connected to said magnetic tunnel junction.