Patent ID: 6252748
Filing Date: 2001-06-26
Classification: G11B

Abstract:
A thin film magnetic head having at least one write element for writing on a medium, comprising:a first pole portion having a first magnetic film and a second magnetic film;a second pole portion; anda gap film provided between said first pole portion and said second pole portion, said second pole portion having a third magnetic film and a fourth magnetic film, said third magnetic film being adjacent to said gap film, said fourth magnetic film being adjacent to said third magnetic film,wherein said fourth magnetic film includes a first portion including a surface facing the medium and extending from the surface to a point a predetermined distance from the surface, and a second portion starting from the point and extending further from the surface, wherein in said first portion said fourth magnetic film gradually increases in width from adjoining edges of said third magnetic film and said fourth magnetic film to form at least one angle smaller than 90.degree. relative to a plane through the adjoining edges, and wherein in said second portion said fourth magnetic film increases in width along the plane through the adjoining edges.