Patent ID: 6156375
Filing Date: 2000-12-05
Classification: G11B

Abstract:
A method of making a read/write MR (magnetoresistive) head, the read/write MR head having an MR read sensor sandwiched between first and second gap layers which, in turn, are sandwiched between first and second shield layers, a write coil which is sandwiched between insulation layers which are, in turn, sandwiched between first and second pole pieces, the pole pieces terminating at pole tips which are separated by a gap layer at an air bearing surface (ABS) and magnetically connected at a back gap, the read/write MR head having a pole tip region, an insulation stack region, and a coil region, the pole tip region extending from the ABS to the insulation stack region, the insulation stack region extending from the pole tip region to the back gap, and the coil region being located in the insulation stack region but spaced from the pole tip region, the method comprising the steps of:depositing first and second shield layers with each of the shield layers being absent or thinned down in the insulation stack region so as to provide a depression in the insulation stack region;forming the write coil and the insulation layers within said depression; andforming the second pole piece on the write coil and the insulation layers.