Method for manufacturing disc-shaped optical recording medium

摘要

A method for manufacturing a disc-shaped optical recording medium is provided, according to which a disc-shaped substrate with no central hole is accurately and stable positioned, when the substrate is spin-coated. A circular recess is formed in the center of a non-coated surface opposite to the surface to be coated of the disc-shaped substrate in the spin-coating step, and a ring-shaped raised rim to fit with the circular recess is provided on the side of a substrate holding portion supporting the disc-shaped substrate during spin-coating. The ring-shaped raised rim is fitted with the circular recess, so that the disc-shaped substrate is accurately positioned and held during the spin-coating step.