Process for producing molding stamper for data recording medium

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430323, 430397, 430 5, G03C 500, G11B 372

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051477637

ABSTRACT:
A process for producing a stamper having a roller form is disclosed. The process includes the steps of: forming a layer of a photoresist on a stamper substrate having a roller form; causing a flexible exposure mask having a predetermined pattern to substantially contact the roller stamper substrate and exposing the roller stamper substrate to light by the medium of the exposure mask; subjecting the photoresist layer to development thereby to form on the stamper substrate a pattern of the photoresist corresponding to the pattern of the exposure mask; and forming on the stamper substrate an unevenness pattern corresponding to the pattern of the photoresist.

REFERENCES:
patent: 4778747 (1988-12-01), Ohta et al.
patent: 4888266 (1989-12-01), Lacotte et al.

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