| 摘要 |
PURPOSE:To prevent the generation of recesses and projections due to the partial wear of the driving surface of a recording medium, by forming a magnetic permeable film group containing a magneto-resistance effect element having an end counter to a magnetic recording medium and the other end connected magnetically to a magnetic permeable material on a nonmagnetic substrate having the magnetic permeable material buried. CONSTITUTION:A magnetic permeable material 16 is buried into a groove 17 formed to a nonmagnetic substrate 15, and a nonmagnetic insulated layer 18 is formed on an even surface of the substrate. Then a magnetic permeable film having a magneto-resistance effect is etched in a prescribed form to obtain an MR film 4b. Then an electrode 5 is formed in the same way, and a magnetic permeable film 14 is formed via a nonmagnetic insulated film 13. A nonmagnetic insulated film 19 is vapor-deposited on the film 14 with adhesion of a cover glass 20. Then a rubbing surface is polished to obtain a desired head. In such a constitution, a material having high wear resistance is available to a nonmagnetic substrate having a contact with a medium 11. This attains a thin film magnetic head which can work with high stability for a long period of time and with no eccentric wear. |
