| 摘要 |
PURPOSE:To obtain a magnetic head having high adhering strength between front and back cores and proper to high density recording by adhering the front core with the back core by a prescribed method. CONSTITUTION:Parallel and plural grooves 15 having width Tw corresponding to track width are formed on a nonmagnetic substrate 14. A metallic magnetic material 16 is charged into the grooves 15 by a sputtering method or the like and then the material 16 is ground to obtain a removed surface 16a. A ferrite block 17 is heated and joined with the removed surface 16a by using glass or the like. The three-layer block is ground until the metallic magnetic material 16 appears on the surface and cut off along alternate long and short dash lines 18 to obtain core half blocks. After forming a groove to be a winding window on the half block, the seam surfaces ground like mirror surfaces are heated and joined by using glass and cut off along alternate long and short dash lines 24. Consequently, the magnetic head having high adhering strength between the front and back cores. |
