Patent ID: 7279762

Claim:
A magnetoresistive memory array, comprising: a plurality of memory cells, individual memory cells including a non-magnetic composition between a pair of magnetic compositions; first electrically conductive contacts on first sides of the individual memory cells; the first electrically conductive contacts being configured to generate first magnetic fields overlapping at least portions of the individual memory cells when current is passed through the first electrically conductive contacts; first magnetic material located outwardly of the first electrically conductive contacts and configured to concentrate the first magnetic fields; second electrically conductive contacts located on opposite sides of the individual memory cells to the first sides; the second electrically conductive contacts being configured to generate second magnetic fields overlapping at least portions of the individual memory cells when current is passed through the second electrically conductive contacts; and second magnetic material outwardly of the second electrically conductive contacts and configured to concentrate the second magnetic fields.