Patent ID: 6477004
Filing Date: 2002-11-05
Classification: G11B,Y10T

Abstract:
A thin film magnetic head comprising:a first magnetic layer having a pole portion; a second magnetic layer having a pole portion which constitutes an air bearing surface together with said pole portion of the first magnetic layer and being magnetically coupled with said first magnetic layer; a gap layer made of a non-magnetic material and being interposed between said pole portion of the first magnetic layer and said pole portion of the second magnetic layer; a thin film coil consisting of one or more thin film coil layers and having a portion which is arranged between said first and second magnetic layers and is supported by an insulating material in an electrically isolated manner; and a substrate supporting said first and second magnetic layers, gap layer and thin film coil; wherein said one thin film coil layer or at least one of said more than one thin film coil layers comprises a first insulating layer, coil windings formed by a conductive material deposited in coil-shaped recesses formed in a surface of said first insulating layer having a thickness larger than a height of the coil windings, and a second insulating layer covering said first insulating layer and coil windings.