| 摘要 |
PURPOSE:To obtain a magnetic head with which an effective gap width and an optical gap width can be made equiv. and the accuracy of the gap width is improved by disposing a non-magnetic conductive material in a recess for regulating the track width of a magnetic head, and packing a non-magnetic packing material having affinity with the non-magnetic conductive material in the recess on the surface of the non-magnetic conductive material. CONSTITUTION:Thin films 5, 5' of non-magnetic conductive materials are formed in the recesses 4, 4' of rectangular parallelopiped blocks 1, 1' formed of a high permeability magnetic material such as Mn-Zn ferrite or the like. A thin film layer 6 of a non- magnetic material having high hardness is formed on the flat surface between the recesses 4 on the top surface of the block 1 at the thickness (g) equiv. to the gap width of a magnetic head. A thin glass film layer 7 having a low softening point is formed at the thickness (g) or below on the flat surface, polished to a specular surface, in the part of the block 1 except the part where the layer 6 is formed. These rectangular parallelopiped blocks are butted in such a way that the recesses 4 and 4' formed thereto coincide exactly with each other and bar-like glass 8 having a relatively low softening point is disposed in the groove formed of the grooves 2 and 2' provided to the butted blocks 1 and 1'. When the blocks 1, 1' are heated under pressure from both sides, the glass 8 softens so as to be filled in the groove constituted of the grooves 2 and 2'. |
