Patent ID: 8320078

Claim:
A perpendicular magnetic recording write head for magnetizing regions of a magnetic recording layer comprising: a substrate; and a laminated main pole on the substrate and having an end for facing the recording layer, the main pole comprising: a first ferromagnetic layer having a thickness T 1 on the substrate and comprising Fe and Co, the first ferromagnetic layer having a substantially planar end face; a second ferromagnetic layer having a thickness T 2 and comprising Fe and Co, the second ferromagnetic layer having a first portion having a substantially planar end face coplanar with the first ferromagnetic layer's end face and a second portion having an end face tapered from said first portion's end face; a first non-magnetic antiparallel-coupling (APC) layer between the first and second ferromagnetic layers; a third ferromagnetic layer having a thickness T 3 and comprising Fe and Co, the third ferromagnetic layer having a tapered end face coplanar with the tapered end face of the second portion of the second ferromagnetic layer; and a second non-magnetic antiparallel-coupling (APC) layer between the second and third ferromagnetic layers.