Patent ID: 6259585
Filing Date: 2001-07-10
Classification: G11B

Abstract:
An inverted hybrid thin film magnetic head comprising:a substrate made of a non-magnetic insulating material and having a surface in which a recessed portion is formed, a groove being formed in the substrate such that the groove extends from the recessed portion to an air bearing surface;an inductive recording element formed to be supported by said substrate; anda magnetoresistive reading element formed to be supported by said inductive recording element;wherein said inductive recording element includes:a first magnetic film having a portion formed on an inner surface of said recessed portion and a pole portion formed within said groove to extend from said portion formed on the inner surface of the recessed portion up to the air bearing surface;a thin film coil formed within said recessed portion and having a plurality of conductive coil turns;an insulating film formed within said recessed portion such that said conductive turns of the thin film coil are supported and isolated by said insulating film;a gap film made of a non-magnetic material and including a portion formed within said groove on said pole portion of the first magnetic film; anda second magnetic film formed on said gap film and having a pole portion which is within said groove opposed to said pole portion of the first magnetic film via said portion of the gap film formed within the groove and a portion which is magnetically coupled with said first magnetic film at a position remote from said pole portion; andsaid magnetoresistive reading element includes:a first shield gap film made of a non-magnetic insulating material and formed on said second magnetic film;a magnetoresistive film formed on said first shield gap film such that a side edge of the magnetoresistive film is exposed on said air bearing surface;a second shield gap film made of a non-magnetic insulating material and formed on the magnetoresistive film and first shield gap film; anda third magnetic film formed on said second shield gap film.