Patent ID: 6643095
Filing Date: 2003-11-04
Classification: G11B,H01F

Abstract:
A thin-film magnetic head comprising: a medium facing surface that faces toward a recording medium; a first magnetic layer and a second magnetic layer magnetically coupled to each other and including magnetic pole portions opposed to each other and placed in regions of the magnetic layers on a side of the medium facing surface, each of the magnetic layers including at least one layer; a gap layer provided between the pole portions of the first and second magnetic layers; a thin-film coil at least a part of which is placed between the first and second magnetic layers, the at least part of the coil being insulated from the first and second magnetic layers; and a lead connected to the thin-film coil, the coil being formed on a flat surface and having a first portion connected to the lead, and a second portion that is other than the first portion, the head further comprising:an auxiliary layer disposed between the flat surface and the first portion of the coil, for making a distance between the flat surface and the first portion greater than a distance between the flat surface and the second portion; and an insulating layer covering the second portion and having a first surface that touches the flat surface and a second surface, opposite to the first surface, that touches the lead, wherein the second surface is flattened so that the first portion is exposed adjacent to the second surface.