Patent ID: 6210543
Filing Date: 2001-04-03
Classification: G11B,H01F,Y10S,Y10T

Abstract:
A method of manufacturing a combination thin film magnetic head comprising a reading head having a magnetoresistive element layer, and an inductive head composed of a coil layer and a core layer and laminated on the reading head, the method comprising forming a shielding layer on the magnetoresistive element layer with an insulation layer therebetween by a method comprising the steps of:forming a resist layer for a lift off method on the insulation layer;forming an anti-milling layer made of a non-magnetic material on the surface of the resist layer for a lift off method and on a portion of the insulation layer where the resist layer for a lift off method is not formed;removing a portion of the resist layer for a lift off method;forming a soft magnetic material layer on a portion of the insulation layer where the resist layer for a lift off method has been removed, and on the anti-milling layer by sputtering or evaporation;forming a resist layer on the portion of the insulation layer where the resist layer for a lift off method has been removed, with the soft magnetic material layer therebetween;removing the soft magnetic material layer by ion milling to leave the portion of the soft magnetic material layer formed below the resist layer as a shielding layer; andremoving the resist layer formed on the shielding layer.