Patent ID: 6538921
Filing Date: 2003-03-25
Classification: B82Y,G11C,H01L

Abstract:
A ferromagnetic thin-film based digital data memory cell, said memory cell comprising:a substrate; and a bit structure supported on said substrate comprising: a nonmagnetic intermediate layer, said nonmagnetic intermediate layer having two major surfaces on opposite sides thereof; a memory film of an anisotropic ferromagnetic material on each of said nonmagnetic intermediate layer major surfaces; an electrically insulative intermediate layer on said memory film and across said memory film from one of said nonmagnetic intermediate layer major surfaces, said electrically insulative intermediate layer having a major surface on a side thereof opposite said memory film; and a magnetization reference layer on said major surface of said electrically insulative layer having an antiferromagnetic material therein to provide said magnetization reference layer with a relatively fixed magnetization direction.