Patent ID: 6972468
Filing Date: 2005-12-06
Classification: H01L

Abstract:
1. A non-volatile magnetic memory device comprising: a first wiring, a second wiring three dimensionally intersecting with said first wiring; and a tunnel magnetoresistance device which is electrically insulated from said first wiring, is electrically connected to said second wiring, and comprises a tunnel insulation layer sandwiched between ferromagnetic materials in the region of intersection between said first wiring and said second wiring; storage of information being conducted by utilization of a change in resistance according to whether the spin directions of said ferromagnetic materials are parallel or antiparallel; wherein one end on said tunnel magnetoresistance device side of said wiring device, to be used for connecting said tunnel magnetoresistance device to a conductor on the lower side thereof is formed to have the same shape as said tunnel magnetoresistance device and to be in the state that the shape of the mask formed on said tunnel magnetoresistance device is transferred thereto.