| 摘要 |
PURPOSE:To improve the reliability and performance of a vertical head by impressing the lines of magnetic force vertically to the surface of a head supporting board and controlling the magnetic characteristics of a high permeability thin film used for a main magnetic pole at the formation of the thin film to obtain the thin film having isotropic magnetic characteristics. CONSTITUTION:At the formation of the main magnetic pole of the vertical magnetic recording head by a sputtering method, a vapor deposition method or a plating method, a magnet 14 having its magnetizing axis vertically to a base plate 13 immediately under the base plate 13 is arranged in a circular hole on the center of a base plate holder 12 and the lines 15 of magnetic force vertical to the thin film are impressed during the formation of the high permeability thin film. The magnetic characteristics of the high permeability thin film formed by said procedure is easily isotropic and the reliability and performance of the vertical head can be improved. |
