Patent ID: 6671135
Filing Date: 2003-12-30
Classification: B82Y,G11B

Abstract:
A combination type thin film magnetic head including a magnetoresistive type reproducing head portion and an inductive type recording head portion, comprising:a substrate having a recessed portion formed in a surface thereof; a magnetic shield layer formed on a portion of the surface of the substrate disposed between the recessed portion and an air bearing surface; a shield gap layer made of an non-magnetic and electrically insulating material and formed on the magnetic shield layer; a magnetoresistive reproducing element embedded within the shield gap layer; a first magnetic layer having a pole portion formed on the shield gap layer and an extended portion extending along a bottom wall of the recessed portion, said pole portion being exposed on the air bearing surface; a thin film coil having a portion provided on the extended portion of the first magnetic layer to be embedded within the recessed portion such that coil windings of the thin film coil are isolated by an insulating layer; a write gap layer made of a non-magnetic material and provided at least on the pole portion of the first magnetic layer; and a second magnetic layer having a pole portion which is opposed to the pole portion of the first magnetic layer via the write gap layer, a portion of the second magnetic layer remote from the pole portion thereof being magnetically coupled with a portion of the first magnetic layer remote from the pole portion of the first magnetic layer, said pole portion of the second magnetic layer being exposed on the air bearing surface; wherein the portion of the thin film coil is fully embedded within the recessed portion such that the portion of the thin film coil is positioned closer to the substrate than the magnetoresistive reproducing element.