Patent ID: 8477453
Filing Date: 2013-07-02
Classification: G11B

Abstract:
1. A PMR write head with a main pole layer having a planar top surface, and a planar bottom surface that is formed parallel to said planar top surface and connected to an air bearing surface (ABS) by a tapered leading side, said main pole layer comprises: (a) a pole tip portion, comprising: (b) the main pole surface adjoining the second section of the bottom surface on each side of the pole tip portion wherein the front edge extends a second distance from a side of the pole tip portion in a cross-track direction to a long side that extends from the front edge in a direction perpendicular to the ABS to a second plane formed on an opposite side of the first plane with respect to the ABS, said second plane is parallel to the first plane; and (c) a side of the main pole layer formed between the main pole surface and planar top surface, and between the first plane and the second plane.