Patent ID: 7877860
Filing Date: 2011-02-01
Classification: G11B,Y10T

Abstract:
1. A method of manufacturing a magnetic head for perpendicular magnetic recording, the magnetic head comprising: a medium facing surface that faces toward a recording medium; a coil for generating a magnetic field corresponding to data to be written on the recording medium; a pole layer including a track width defining portion having an end face located in the medium facing surface, the pole layer allowing a magnetic flux corresponding to the magnetic field generated by the coil to pass therethrough, and generating a write magnetic field for writing the data on the recording medium through the use of a perpendicular magnetic recording system; and a substrate on which the pole layer and the coil are stacked, wherein: the end face of the track width defining portion located in the medium facing surface has a first side close to the substrate, a second side located opposite to the first side, a third side connecting an end of the first side to an end of the second side, and a fourth side connecting another end of the first side to another end of the second side, the second side defines a track width; and the pole layer is made of a magnetic alloy including any of cobalt, iron and nickel, the method comprising the steps of: