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Patent Searching and Data


Title:
PRODUCTION OF STAMPER FOR OPTICAL DISK
Document Type and Number:
Japanese Patent JPH0660439
Kind Code:
A
Abstract:

PURPOSE: To transfer lots of stampers by sputtering a metal element or inorg. compd. having high melting point on the surface of the master disk of photosensitive resin film to form a thin film.

CONSTITUTION: A thin film 2 is formed by sputtering on the master disk of a photosensitive resin film having at least one of guide grooves and rugged pattern in which information is recorded by using a metal or inorg. compd. having low melting point. Thereby, a peeling layer having small particles size can be formed. Or, by forming a metal thin film 2 having good adhesion property with the photosensitive resin film and then a metal thin film having good peeling property with the stamper 8 is laminated to form a multilayer structure, adhesion property with the master disk is improved and the stamper 8 has higher peeling property. Thus, lots of stampers can be formed by transferring from the master disk.


Inventors:
ANDO KEIKICHI
ANZAI YUMIKO
MIYAMURA YOSHINORI
MIYAMOTO JIICHI
HORIGOME SHINKICHI
Application Number:
JP20782292A
Publication Date:
March 04, 1994
Filing Date:
August 04, 1992
Export Citation:
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Assignee:
HITACHI LTD
HITACHI MAXELL
International Classes:
G11B7/26; (IPC1-7): G11B7/26
Attorney, Agent or Firm:
Ogawa Katsuo