| 摘要 |
In the thin film magnetic head of the present invention, angle of an end face of a heaped layer with respect to a lower magnetic pole layer is made obtuse so as to prevent flux leakage at a rear part of the heaped layer and improve writing characteristics of the magnetic head. The thin film magnetic head comprises: a lower magnetic pole layer; a gap layer provided on the lower magnetic pole layer; a sub-magnetic pole layer provided on the gap layer; an upper magnetic pole layer connected to a rear part of the sub-magnetic pole layer; and a heaped layer made of an electrically insulating material and provided on the rear side of the gap layer and between the lower magnetic pole layer and the sub-magnetic pole layer, the heaped layer having a slope portion, which is extended toward the gap layer and whose height is gradually reduced toward the same.
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