| 摘要 |
PURPOSE:To prevent polishing strains, scratches, etc., from remaining on the surface of an insulating film and to obtain the thin-film magnetic head having excellent magnetic characteristics by polishing a substrate by using a polisher in a suspension contg. >=1 kinds of powders selected from TiO2, Fe2O3 or V2O5. CONSTITUTION:The insulating film 2 consisting of Al2O3 or SiO2 is formed on the substrate 1 consisting of a sintered body. The substrate 1 on which the insulating film 2 is formed is put into the suspension contg. >=1 kinds of the powders selected from the TiO2, Fe2O3 or V2O5 and the surface of the insulating film 2 is polished in this suspension by using a polisher. The thin-film magnetic head having improved magnetic characteristics is obtd. if the magnetic film 3 is formed on the insulating film 2 subjected to surface polishing. |
