Method of manufacturing glass substrate for magnetic disks, and glass substrate for magnetic disks

Abstract

There is provided a method of manufacturing a glass substrate for magnetic disks, according to which circumferential direction texture can be formed without bringing about a drop in anisotropy, thus enabling coating with a magnetic recording layer having a large magnetic coercivity. In a texturing step, a tape is used while a diamond slurry is fed onto at least one main surface of a glass substrate member that has been processed into a substantially circular shape, thus forming a linear texture in a circumferential direction on the at least one main surface. In a chemical strengthening step, the mechanical strength of the glass substrate member is chemically strengthened to a level required of the glass substrate for magnetic disks. The texturing step is carried out after the chemical strengthening step.

Dependencies are inferred from the claim text.