Patent ID: 6381093
Filing Date: 2002-04-30
Classification: G11B

Abstract:
A thin film magnetic head comprising:at least one write element, said write element comprising a first pole portion, a second pole portion and a gap film provided between said first pole portion and said second pole portion, said second pole portion having a third magnetic film provided adjacent to said gap film and a fourth magnetic film provided adjacent to said third magnetic film, wherein said third magnetic film and said fourth magnetic film each have a surface facing opposite a medium at an air bearing surface of the thin film magnetic head; said third magnetic film has a width (W20) at a position receding from the surface thereof facing opposite said medium which is larger than a width (W21) at said surface facing opposite said medium, said fourth magnetic film is formed separate from said third magnetic film and has a width (W22) at said surface facing opposite said medium which is larger than said width (W21) of said third magnetic film at said surface facing opposite said medium, and the width (W22) of said fourth magnetic film differs from the width (W20) of said third magnetic film at the receding position.