Patent ID: 7333296

Claim:
A magnetic head for perpendicular magnetic recording 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 having an end face located in the medium facing surface, allowing a magnetic flux corresponding to the 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; a pole-layer-encasing layer made of a nonmagnetic material and having a groove that opens in a top surface of the encasing layer and accommodates the pole layer; and a nonmagnetic conductive layer made of a nonmagnetic conductive material and disposed on the top surface of the encasing layer, wherein the nonmagnetic conductive layer has a penetrating opening having an edge located directly above an edge of the groove located in the top surface of the encasing layer.