Armstrong, Kratz, Quintos, Hanson & Brooks, LLP
Magnetoresistive memory apparatus
A magnetoresistive memory apparatus with a semiconductor substrate having a plurality of intersecting, non-contacting word lines and bit lines constituting a matrix, and a plurality of ferromagnetic tunnel junction devices located adjacent each intersection of the plurality of lines, each junction device having, disposed one upon another via insulating layers, free layers having variable magnetization directions and fixed magnetization layers having fixed magnetization directions, with magnetized information being written to the memory device at an intersection selected by magnetization electric currents supplied to the lines, the magnetized information read out by detecting the resistance variance of electric currents flowing through the memory device due to the tunnel effect. The plurality of junction devices deviate from the intersections of the plurality of lines, and between the lines are non-contacting free layer extended portions being extensions from only the free layer, to shorten the interval there between.
Fujitsu Limited
H B
H01L B82Y
inventional inventional
Masashige Kazuo Hideyuki
Sato Kobayashi Kikuchi