Patent ID: 7593183
Filing Date: 2009-09-22
Classification: G11B

Abstract:
1. A magnetic write head for perpendicular magnetic data recording, the write head comprising: a magnetic return pole having a first end disposed toward an air bearing surface (ABS) and a second end opposite the first end; an electrically conductive write coil, having a plurality of coil turns, a portion of which passes over the return pole, the write coil being separated from the return pole by a non-magnetic, electrically insulating material; a layer of hard baked photoresist separating the coil turns from one another; a magnetic pedestal, magnetically connected with the return pole at the first end of the return pole and located at the ABS; and an alumina fill material disposed between the electrically conductive coil and the pedestal and between the electrically conductive coil and the ABS, the alumina fill material completely filling the space between the coil and the pedestal, such that there is no hard baked photoresist located between the coil and the pedestal and no hard baked photoresist between the coil and the ABS.