Patent ID: 6803619
Filing Date: 2004-10-12
Classification: B82Y,H01L

Abstract:
A magnetic memory device comprising:a semiconductor substrate; a transistor formed above said semiconductor substrate; a tunnel magneto-resistive element formed above an interlayer dielectric film covering said transistor of said semiconductor substrate; a first wiring line buried in said interlayer dielectric film and connected to a source/drain diffusion layer of said transistor; a second wiring line buried just beneath said tunnel magneto-resistive element while overlying said first wiring line in said interlayer dielectric film, to provide a current magnetic field to said tunnel magneto-resistive element during writing; and a third wiring line connected to an upper surface of said tunnel magneto-resistive element and provided to cross said second wiring line, to provide a current magnetic field to said tunnel magneto-resistive element during writing and also to cause a cell current to flow during reading, wherein said second wiring line is formed and patterned so that its both edges are placed outside a pattern of said tunnel magneto-resistive element.