Patent ID: 6919595
Filing Date: 2005-07-19
Classification: B82Y,H01L

Abstract:
1. A magnetic memory device comprising: a semiconductor substrate; an interlayer dielectric film formed on said semiconductor substrate; a tunnel magneto-resistive element formed above said interlayer dielectric film; a first wiring line buried in said interlayer dielectric film just beneath said tunnel magneto-resistive element to provide a current magnetic field to said tunnel magneto-resistive element during writing; and a second wiring line connected to an upper surface of said tunnel magneto-resistive element and provided to cross said first 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; and a lead placed just beneath said first wiring line having a width greater than that of said first wiring line, wherein said first wiring line is formed and patterned so that both edges of the first wiring line are placed outside a pattern of said tunnel magneto-resistive element.