Patent ID: 8537493
Filing Date: 2013-09-17
Classification: G11B,Y10T

Abstract:
1. A magnetic head for perpendicular recording, comprising: a main pole; a first soft magnetic film disposed on a trailing side of the main pole; and a first nonmagnetic film interposed between the main pole and the first soft magnetic film; a second soft magnetic film disposed on both sides in a track width direction of the main pole; and a second nonmagnetic film interposed between the main pole and the second soft magnetic film, wherein a thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, wherein the thickness of the main pole begins increasing at the air bearing surface, wherein a thickness of the first nonmagnetic film increases along the depth direction starting from the air bearing surface, and wherein a thickness of the second nonmagnetic film in the track width direction increases in the depth direction from the air bearing surface starting at the air bearing surface.