Patent ID: 8971103
Filing Date: 2015-03-03
Classification: G11C,Y10S

Abstract:
1. A thermally assisted magnetoresistive random access memory device, comprising: an antiferromagnetic layer; a synthetic antiferromagnetic layer disposed on the antiferromagnetic layer, wherein the synthetic antiferromagnetic layer comprises a first ferromagnetic storage layer, a non-magnetic coupling layer disposed on the first ferromagnetic storage layer, and a second ferromagnetic storage layer disposed on the non-magnetic coupling layer; a non-magnetic tunnel barrier disposed on the second ferromagnetic storage layer; and a ferromagnetic sense layer disposed on the non-magnetic tunnel barrier; wherein a first ferromagnetic critical temperature of the first ferromagnetic storage layer is higher than an antiferromagnetic critical temperature of the antiferromagnetic layer, is higher than a second ferromagnetic critical temperature of the second ferromagnetic storage layer, and is higher than a third ferromagnetic critical temperature of the ferromagnetic sense layer.