Title:
METHOD FOR MANUFACTURING STAMPER FOR OPTICAL DISK
Document Type and Number:
Japanese Patent JP2002150623
Kind Code:
A
Abstract:
To obtain a method for manufacturing a stamper for optical disk, which suppresses surface wobbling (focus error) of a disk after forming as much as possible and manufactures the disk at a low cost.
In this method for manufacturing a stamper for optical disk, a protection tape P is stuck to a signal recording face of a stamper 10A for optical disk to be ground, and the rear face of this stamper 10A is ground to obtain the stamper for optical disk.
Inventors:
SEGAWA YUJI
TAKEDA MINORU
TOYOKAWA MITSURU
IMANISHI SHINGO
TAKEDA MINORU
TOYOKAWA MITSURU
IMANISHI SHINGO
Application Number:
JP2000339482A
Publication Date:
May 24, 2002
Filing Date:
November 07, 2000
Export Citation:
Assignee:
SONY CORP
International Classes:
B29C33/38; C25D1/00; G11B7/26; (IPC1-7): G11B7/26; B29C33/38; C25D1/00
Attorney, Agent or Firm:
Osamu Matsumura