Patent ID: 8054580
Filing Date: 2011-11-08
Classification: G11B

Abstract:
1. A perpendicular recording magnetic head, comprising: a write section including: a main magnetic pole layer having a leading end portion and a flare portion; a first soft magnetic layer having a leading end retracted from an air bearing surface and disposed adjacent to a leading side of the main magnetic pole layer; a second soft magnetic layer having a leading end retracted from the air bearing surface closer than the leading end of the first soft magnetic layer and disposed adjacent to a trailing side of the main magnetic pole layer; a first sub magnetic pole layer disposed on the leading side of the main magnetic pole layer with a gap from the main magnetic pole layer at a side of the air bearing surface; a pedestal magnetic layer disposed by way of a non-magnetic layer on the trailing side of the main magnetic pole layer at the side of the air bearing surface; a second sub magnetic pole layer disposed on the trailing side of the main magnetic pole layer, the second sub magnetic pole layer being magnetically coupled to the pedestal magnetic layer at the side of the air bearing surface; and a coil conductor generating a magnetic flux in the main magnetic pole layer; and a read section disposed adjacent to the write section, the read section including a read element disposed between upper and lower magnetic shield layers, wherein the first soft magnetic layer and the second soft magnetic layer are tapered, facing the air bearing surface, to follow along an opening angle of the flare portion of the main magnetic pole layer.