Patent ID: 8259413
Filing Date: 2012-09-04
Classification: G11B,Y10T

Abstract:
1. A system, comprising: a write pole having an end region positioned towards an air bearing surface, a first flare point, and a second flare point positioned between the air bearing surface and the first flare point; and a shield positioned above the write pole, wherein a cross sectional area of the write pole at a point between the first and second flare points along a plane passing through the write pole and oriented about parallel to the air bearing surface is greater than a cross sectional area of the end region of the write pole along a plane oriented parallel to the plane passing through the second flare point, wherein the cross-sectional area of the write pole at the point between the first and second flare points is increased by a second layer of a cobalt ferrite, NiFe, or alloys thereof positioned on sides and/or under the write pole.