Patent ID: 7023669
Filing Date: 2006-04-04
Classification: B82Y,G11B,Y10T

Abstract:
1. A magnetic head, comprising: a magneto-resistive film having a ferromagnetic free layer at a top part thereof, said ferromagnetic free layer changing a magnetization thereof in response to an external magnetic field; first and second magnetic domain control patterns provided on said ferromagnetic free layer, each of said first and second magnetic domain control patterns causing a pinning of magnetization in said ferromagnetic free layer in the vicinity thereof; a first electrode provided on said ferromagnetic free layer in contact therewith at a region located between said first and second magnetic domain control patterns; and a second electrode provided in electrical contact with a bottom surface of said magneto-resistive film, said magnetic head being a CPP type magnetic head, said magnetic head further comprising a first insulating film covering said first magnetic domain control pattern and a second insulating film covering said second magnetic domain control pattern, said first insulating film being interposed between said first magnetic domain control pattern and said first electrode on a top surface of said magneto-resistive film, and said second insulating film being interposed between said second magnetic domain control pattern and said first electrode on the top surface of said magneto-resistive film.