Patent ID: 7688546

Claim:
A perpendicular magnetic recording (PMR) head having an air bearing surface, the PMR head comprising; a first pole including a first pole front region and a first pole back gap region; a second pole having a second pole front region and a second pole back gap region, the first pole back gap region being coupled with and the second pole back gap region; a first nonmagnetic insertion layer residing between the second pole back gap region and the first pole back gap region; a magnetic pole layer terminating at the air bearing surface, the magnetic pole layer having a front and a back terminating between the air bearing surface and the second pole back gap region, the magnetic pole layer having at least one pole angle of at least thirty degrees and not more than fifty degrees, at least a portion of the magnetic pole layer residing on the second pole; a write gap adjacent to the front of the magnetic pole layer; at least one shield, a first portion of the at least one shield adjacent to the write gap, a second portion of the at least one shield coupled with the second pole back gap region; a second nonmagnetic insertion layer residing between the second pole back gap region and the second portion of the at least one shield; and at least one coil residing between the at least one shield and the first pole.