Magnetic Memory Device with Grid-Shaped Common Source Plate, System, and Method of Fabrication

Magnetic memory devices include an array of magnetic memory cells including magnetic tunnel junction regions. The array of magnetic memory cells includes access lines extending in a column direction and data/sense lines extending in a row direction transverse to the column direction. A common source plate electrically couples magnetic memory cells of the array in both the column direction and the row direction. Electronic systems include such a magnetic memory device operably coupled to a processor, to which at least one input device and at least one output device is operably coupled. Methods of fabricating magnetic memory devices include forming such an array of magnetic memory cells including a common source plate.