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Patent Searching and Data


Title:
TRANSFER METHOD FOR DISK SUBSTRATE
Document Type and Number:
Japanese Patent JPH03225641
Kind Code:
A
Abstract:

PURPOSE: To well transfer the rugged patterns of a stamper to a UV curing resin layer by maintaining the stamper in a constant temp. state and bringing the stamper into pressurized contact with a disk substrate coated with a UV curing resin.

CONSTITUTION: The disk substrate 7 coated with the UV curing resin is disposed on the stamper 10 of a transfer device 11 in such a manner that the UV curing resin comes into tight contact with the stamper 10. The stamper 10 is held on a stamper holding part 14. This stamper holding part 14 is constituted of a magnet adapter, magnet chuck and holder. A pipe is installed to the thick plate holder of the holder and hot water is circulated. The stamper 10 is maintained in the constant temp. state in such a manner and the disk substrate 7 is pressed by a pressing device 12 to the stamper 10 device, by which the rugged patterns of the stamper 10 are well transferred.


Inventors:
ANEZAKI YOSHIKAZU
SASAKI KOJI
WATANABE HIDETOSHI
SUZUKI KOJI
Application Number:
JP1883290A
Publication Date:
October 04, 1991
Filing Date:
January 31, 1990
Export Citation:
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Assignee:
SONY CORP
International Classes:
B29C43/02; B29C43/18; B29C43/52; B29D17/00; G11B7/26; G11B11/10; G11B11/105; B29C33/04; B29C35/08; B29L17/00; (IPC1-7): B29C43/18; B29C43/52; B29L17/00; G11B7/26; G11B11/10
Domestic Patent References:
JPH01163025A1989-06-27
JPS63160035A1988-07-02
JPS60174619A1985-09-07