Patent ID: 6466415
Filing Date: 2002-10-15
Classification: B82Y,G11B

Abstract:
A thin film magnetic head comprising a slider having a medium opposing surface and at least one recording element including a first pole portion composed of a magnetic film, a second pole portion composed of first and second magnetic films, a gap film, a coil film, and an insulating film,the first pole portion extending backward from the medium opposing surface and having a depressed portion to descend from a first inclination starting point at a first inclination angle &thgr;1 backward from the medium opposing surface, the insulating film being filled up into the depressed portion so that the insulation film includes an inclined surface at least in the side facing the medium opposing surface and it can be located up to the upper side of the surface of the magnetic film constituting the first pole portion, the gap film being adjacent to the first pole portion and having an inclined portion alongside the inclined surface of the insulating film, the coil film being embedded into the insulating film, the first magnetic film having a larger saturated magnetic flux density than the second magnetic film, adjacent to the gap film, and having an inclined portion of a second inclination angle &thgr;2 from a second inclination starting point positioned at the base portion of the inclined portion of the gap, the second magnetic film being formed on the insulating film, adjacent to the first magnetic film, and extending backward from the medium opposing surface to be joined with the magnetic film constituting the first pole portion.