Manufacturing method and apparatus for optical disc

A method for manufacturing an optical disc comprising:

• bonding a transparent disc substrate having two surfaces thereof on at least one of which a first information is recorded and a first reflective film is formed onto a dummy disc having similar surfaces thereof on at least one of which a second information is recorded and a second reflective film is formed via an adhesive layer;
• and
• applying an external force between the dummy disc and the disc substrate through an integrated center hole penetrated through the dummy disc and the disc substrate at center portion thereof to peel off the dummy disc at a first interface between the dummy disc and the disc substrate and wherein the step of applying the external force includes expanding the dummy disc and the disc substrate through the integrated center hole of the dummy disc to partially peel off the dummy disc from the disc substrate;
• and supplying a compressed air to a space provided between the partially peeled dummy disc and the disc substrate to completely peel off the dummy disc from the disc substrate.

A method for manufacturing an optical disc, comprising:

• bonding a transparent disc substrate having two relatively wide-area surfaces thereof on at least one of which a first information is recorded and a first reflective film is formed onto a dummy disc having the similar relatively wide-area surfaces thereof on at least one which a second information is recorded and a second reflective film is formed via an adhesive layer;
• and
• applying an external force between the dummy disc and the disc substrate through an integrated center hole penetrated through the dummy disc and the disc substrate at center positions thereof to peel off the dummy disc at the first interface between the dummy disc and the disc substrate, wherein
• the applying of the external force between the dummy disc and the disc substrate includes:
• applying a mechanical force between the dummy disc and the disc substrate through the integrated center hole to partially peel off the dummy disc from the disc substrate;
• and supplying a compressed air through the integrated center bole between the partially peeled dummy disc and the disc substrate to completely peel off the dummy disc from the second reflective film, the completely peeled dummy disc being expelled from the second reflective film thereof.