Patent ID: 7974047

Claim:
A current perpendicular to plane (CPP) differential magnetoresistance (DMR) read head comprising: a first electrically conductive lead; a first MR sensor having a back edge and in contact with the first conductive lead; a second MR sensor; a non-magnetic electrically conductive spacer in contact and in between the first MR sensor and the second MR sensor proximal to an air bearing surface (ABS) and wherein the conductive spacer is not in contact with the first MR sensor and the second MR sensor distal to the ABS; insulating material in between the first MR sensor and the second MR sensor distal to the ABS such that the first MR sensor and the second MR sensor are in electrical contact proximal to the ABS and are electrically isolated distal to the ABS; and a second electrically conductive lead in contact with the second MR sensor.