Patent ID: 6952867
Filing Date: 2005-10-11
Classification: G11B,Y10T

Abstract:
1. A method for manufacturing a perpendicular magnetic recording head comprising the steps of: (a) forming an auxiliary magnetic pole layer using a magnetic material; (b) forming a coupling layer with a magnetic material on the auxiliary magnetic pole layer behind a face that serves as a face opposing a recording medium; (c) forming a coil layer in the region behind the face that serves as the face opposing the recording medium; (d) laminating an insulation layer on the auxiliary magnetic pole layer; (e) forming an inorganic insulation layer having a main magnetic pole forming groove on the insulation layer, an inner width of the groove in a track width direction gradually increasing in accordance with the distance from the auxiliary magnetic pole layer on the recording medium opposing face, and the main magnetic pole forming groove having a given depth from the recording medium opposing face to a back of the insulation layer; (f) forming a main magnetic pole layer in the main magnetic pole forming groove; and (g) magnetically coupling the main magnetic pole layer and the coupling layer or by forming yoke layers on the main magnetic pole layer and coupling layer.