PURPOSE:To easily and possibly produce a thin film magnetic head where a level difference between a lead line layer and an insulation layer and the level difference in the pole part of an upper core layer are small by digging a groove on a substrate and burying a lower core layer and the lead line layer in the groove. CONSTITUTION:The titled head has the lower core layer 2a and the lead line layer 2b formed by being buried in the grooves 1a and 1b which are digged on a nonmagnetic substrate 1 and also has the pole part 3a, an up-and-down core contact part 3b and a coil contact part 3c formed on the above-mentioned layers 2a and 2b. And coil layers 5 in a first layer, formed spirally in plane, is provided on a gap layer 4 so as not to position on the pole part 3a and the up-and-down core contact part 3b. And a main part is sequentially constituted with the layer insulation layer 6, the coil layers 7 in a second layer, layer insulation layer 8 and the upper core layer 9. Thus the level difference between the lead line layer 2b and the insulation layers 6 and 8 becomes small, so that the disconnection of a coil is not caused so much and also the disconnection in the coil contact part 3c is reduced. As a result, the yield of the thin film magnetic head can be remarkably improved.
展开▼
