MANUFACTURE OF STAMPER FOR OPTICAL DISC

Title:

MANUFACTURE OF STAMPER FOR OPTICAL DISC

Document Type and Number:

Japanese Patent JPH09109276

Kind Code:

A

Abstract:

To provide a method for manufacturing a high-quality stamper at a high yield by automated steps.

This method for manufacturing a stamper for an optical disc consists of a photosensitive layer forming step of forming a photosensitive layer after cleaning a substrate, a drying step of drying the photosensitive layer, a photosensitive step of performing photosensitization according to desired data, an electroconductive step of performing an electroconductive process of a surface by electroless plating, and a metal layer forming step of forming a nickel metal layer on an electroconductive surface using an electrocasting method. When performing these steps, under the electroconductive process, at least, the surface is treated with a negative charge neutralizing agent, then is treated with a tin-palladium treating agent, and further, is treated with a promoter to remove the tin component. After that, the surface is treated with an electroless nickel liquid. Every process in the electroconductive step represents a method for manufacturing a stamper for an optical disc using a spin coating process.

Inventors:

KAMIYAMA KENICHI
ICHIMURA IKUHISA
TSURUGA TETSUYA

Application Number:

JP26878095A

Publication Date:

April 28, 1997

Filing Date:

October 17, 1995

Export Citation:

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Assignee:

KAO CORP

International Classes:

B29C33/38; B29D17/00; G11B7/26; (IPC1-7): B29D17/00; B29C33/38; G11B7/26

Attorney, Agent or Firm:

Osamu Hatori (1 person outside)

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