Patent ID: 6205007
Filing Date: 2001-03-20
Classification: G11B

Abstract:
A thin-film magnetic head having a head face and comprising:a flux-guiding element of a magnetically permeable material terminating in the head face; anda magnetoresistive element oriented transversely to the head face, a peripheral area of the magnetoresistive element extending parallel to the head face and opposite the flux-guiding element for forming a magnetic connection between the magnetoresistive element and the flux-guiding element,and in which:the flux-guiding element and the peripheral area of the magnetoresistive element constitute a common magnetic contact face;the magnetically permeable material of the flux-guiding element is electrically insulating; andthe magnetically permeable material of the flux-guiding element satisfies the condition: ##EQU6##in which:c is a numerical value of more than 1/3;r.sub.f is the resistivity of the material of the flux-guiding element;r.sub.m is the resistivity of the material of the magnetoresistive element;t.sub.1 is the thickness, viewed in a direction transverse to the magnetoresistive element, of the flux-guiding element;t.sub.m is the thickness of the magnetoresistive element;h.sub.1 is the height, viewed from the head face, of the flux-guiding element; andb is the width, viewed in a direction transverse to the head face, of the magnetoresistive element.