Patent ID: 6795340
Filing Date: 2004-09-21
Classification: G11C

Abstract:
A non-volatile magnetic memory comprising:a cell array including a plurality of unit cells arranged in a matrix, said unit cell including: a first word line; a first memory element connected to said first word line and having an insulating film and at least two-layered ferromagnetic films provided so as to sandwich said insulating film therebetween, a second word line; a second memory element connected to said second word line and having an insulating film and at least two-layered ferromagnetic films provided so as to sandwich said insulating film therebetween; a bit line connected to said first memory element and said second memory element intersecting with said first word line and said second word line; and an information read part, which reads information from said first memory element and said second memory element by use of the fact that a tunnel electric current is changed by conditions of a direction of magnetization in said at least two-layered ferromagnetic films; wherein the directions of easy axis of magnetization in said first memory element and said second memory element are the same as the direction of said bit line; and said first memory element and said second memory element store information opposite to each other.