Blank disc and direct stamper and its manufacturing method

Details Blank disc and direct stamper and its manufacturing method Blank disc and direct stamper and its manufacturing method

2005-08-09

2005-08-09

Chea, Thorl (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

C430S325000, C430S328000, C430S330000, C430S945000

Reexamination Certificate

active

06927016

ABSTRACT:
A method for manufacturing a direct stamper to be used for molding optical discs, includes forming a layer of a crosslinkable substance all over a surface of a base disc, subjecting the crosslinkable substance to a first crosslinking reaction, thereafter, forming a photoresist layer on the crosslinking substance, subsequently, subjecting the photoresist layer to exposure to a laser beam having been modulated by a signal to be recorded, and then to development, so that exposed portions of the photoresist are formed into bumps on the crosslinking substance, and thereafter, further subjecting the crosslinking substance and the photoresist bumps to a second crosslinking reaction.

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