| 摘要 |
PURPOSE:To improve the sliding resistant strength to a magnetic head by polishing an Al substrate formed with hard films on sheet surfaces, forming intermediate films thereon and interspersing the projections of the hard films into the intermediate films. CONSTITUTION:After both faces of the Al substrate 1 are polished, Ni-P plating films 2 are formed on both faces and the two faces of the substrate subjected to the Ni-P plating are polished to specular surfaces. Ti is then sputtered and formed on both faces of the substrate to form the intermediate films 3 thereon. The projections 4 are interspersed over the entire surface formed with the intermediate films 3. Magnetic media 5 consisting of iron oxide are formed on the substrate and lubricating films 6 consisting of fluorine are formed thereon. The surfaces thereof have the sectional shape in which the projections are formed and the projections 4 formed in the stage of forming the intermediate films 3 remain on the surface. The hard projections of a very small height are uniformly dispersed on the substrate surface in the above-mentioned manner and therefore, the sliding resistant strength such as CSS characteristic by the slider part of the magnetic head is remarkably improved.
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