precision is conspicuous at the pole portion of the second magnetic film. The pole portion of the second magnetic film is opposed to the first magnetic film via the gap film. On the backward area from the pole portion is positioned the insulating film rising up with an inclination of a given angle from the surface of the gap film. The starting point of the rising up corresponds to a Throat Height zero point and the rising up angle corresponds to an Apex Angle.
The second magnetic film constitutes the pole portion parallel to the gap film and the first magnetic film up to the Throat Height zero point and then, rises up with an inclination of the Apex Angle toward the top surface of the insulating film fromyoke portion independently.
To achieve the object, this invention discloses two types of manufacturing method of the thin film magnetic head.
The first type of manufacturing method relates to a method for manufacturing a thin film magnetic head comprising a slider having an air bearing surface on its medium opposing surface and a thin film magnetic head element having a first magnetic film, a coil film, an insulating film, a gap film and a second magnetic film,
the first magnetic film including a first pole portion composed of its edge portion in the side of the air bearing surface and a first yoke portion continuing to the first pole portion and extending backward from the first pole portion,
the gap film being provided at least on the first pole portion, the insulating