Patent ID: 8085498

Claim:
A PMR write head formed on a substrate and having at least a trailing shield, comprising: (a) a main pole layer formed on the substrate and having a write pole tip at an air bearing surface (ABS); (b) a dielectric layer formed on the main pole layer and comprising a write gap contacting a trailing side of the main pole layer at the write pole tip; (c) a first write shield contacting a side of the write gap opposite the main pole layer and having a trailing side that is coplanar with a top surface of said dielectric layer and is formed perpendicular to the ABS; (d) a flux choking layer formed on the trailing side of the first write shield and on a portion of the top surface of the dielectric layer adjacent to the first write shield, said flux choking layer has a uniform first thickness in a down-track direction and extends from the ABS to a front side of a PP3 section of a trailing shield structure wherein the PP3 section has a second thickness substantially greater than said first thickness and the PP3 section, flux choking magnetic layer, and first write shield form an integrated trailing shield structure.