Patent ID: 8137161

Claim:
A disk-shaped substrate manufacturing method, where a disk-shaped substrate is ground under a dust removal environment that is not a clean room as a previous step of a process performed in a clean room, comprising: grinding a disk-shaped substrate in a grinding apparatus that contains piping or wiring of the grinding apparatus on which dust accumulates on the piping or wiring and falls therefrom; generating an air stream downward from an upper area with respect to the grinding apparatus placed in the dust removal environment during grinding the disk-shaped substrate in the grinding apparatus; performing the grinding in a grinding apparatus that is arranged on an upper floor face of a floor while water is present on a lower floor face of the floor, the upper floor face being made of a board having penetration holes or a mesh member, and the lower floor face supporting the upper floor face so as to be located above the lower floor face with a distance; guiding dust made by the grinding apparatus to the water by use of the air stream; and reducing contact of dust accumulated on the piping or the wiring and falling therefrom to the disk-shaped substrate in processing by grinding the disk-shaped substrate in a grinding apparatus that contains the piping or wiring of the grinding apparatus below a processing area of the grinding apparatus.