THIN FILM MAGNETIC HEAD

摘要

PURPOSE:To solve problems such as the wear and plastic flow of a thin film magnetic head owing to traveling of a magnetic medium and to produce a thin film magnetic head having a long life by using a magnetic metallic material having high hardness on the traveling surface of the recording medium consisting of the thin magnetic metallic film. CONSTITUTION:The thin film magnetic head is constituted by using an amorphous alloy or Fe-Al-Si alloy to the lower thin magnetic metallic film 2 and an Fe-Al-Si alloy for the central rear thin magnetic metallic film 5. The thin film magnetic head made into such constitution permits the formation of the Fe-Al-Si alloy and amorphous alloy, etc. having high hardness into 1-2mum thin film and the working of the film by lift off and ion etching. The Fe-Ni alloy which is easily electrodepositable is laminated on the part of the recording medium except the traveling surface in order to prevent the magnetic flux saturation of the thin magnetic metallic film which is formed as thinly as 1-2mum. The stable thin film magnetic recording and reproduction are thus made possible with the decreased frictional deterioration in traveling of the medium.