Method of manufacturing a stamper suitable for producing optical discs

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United States of America Patent

PATENT NO 6238846
SERIAL NO

09307184

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Abstract

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A method of manufacturing a stamper for producing optical discs involves the application of a photoresist film to a substrate and subsequently structuring the photoresist film by exposing and developing the photoresist film. The method is characterized in that an electrically conducting substrate is used. The substrate having the structured photoresist film thereon is subjected to passivation treatment, and is further subject to galvanic treatment for the purpose of forming a nickel layer thereon. After the nickel layer is formed, the nickel layer is separated from the substrate so as to obtain a stamper. The stamper can be used to prepare optical discs.

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Patent Owner(s)

Patent OwnerAddress
SINGULUS MASTERING B VMARINUS VAN MEELWEG 2 5657 EN EINDHOVEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tacken, Roland Anthony Eindhoven, NL 15 32

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