Patent ID: 8233234
Filing Date: 2012-07-31
Classification: G11B,Y10T

Abstract:
1. A magnetic write head, the magnetic write head comprising a stepped main pole, the stepped main pole comprising: a main pole tip having a surface adjacent the ABS and a bottom surface, the main pole tip having a first thickness and a first width; a base portion extending from the main pole tip, the base portion having a thickness that varies from the first thickness to a second thickness to form a slanted surface adjacent the main pole tip and a width that varies from the first width to an increasing width to form a flare that extends from a flare point adjacent the main pole tip; wherein the flare point is at a first distance from the ABS and the slanted surface of the base portion extends between the first distance and a second distance of between 100 nm to 300 nm from the ABS, and the slanted surface of the base portion and the bottom surface of the main pole tip form an angle of between 135 degrees and 150 degrees.