| 摘要 |
PURPOSE:To prevent partial wear of a magnetic head by putting an adhesive glass layer, which is formed on a substrate and a magnetic material formed on a substrate consisting of the same materials as said substrate and adhering them in a powder by pressurizing and heating to make a base material. CONSTITUTION:An amorphous magnetic material 2 is formed on a crystallized glass substrate 1 by sputtering, and a lead glass layer 4 for adhesion is formed on a crystallized glass substrate 3 consisting of the same materials as the substrate 1 by sputtering, and the substrate 3 is put on the substrate 1, and they are arranged in alumina powder 5 in a cylinder 8, and they are heated and adhered by an electric furnace in the state where pressures are applied from above and below in directions of arrows 9, thus producing the substrate base material; and this base material is cut to complete a video head chip. The adhesive glass layer 4 obtained in this manner is formed uniformly with less defects such as air bubbles, and partial wear for tape sliding is prevented. |
