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Title:
MANUFACTURING METHOD OF DISK-SHAPED RECORDING MEDIUM AND STAMPER MEMBER USABLE FOR MANUFACTURING METHOD OF DISK-SHAPED RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP2005085403
Kind Code:
A
Abstract:

To provide a method for manufacturing a disk-shaped recording medium at a low cost by using a stamper member comprising a resin material, and also provide the stamper member for the method.

An energy ray-curing resin 13 is applied to the inner circumference of a first recording layer formed on a disk-shaped substrate 11, and the stamper member 14 is arranged so that its first transcription surface 15 may face the disk-shaped substrate. The energy ray-curing resin 13 is spin coated between the disk-shaped substrate and the stamper member 14, and the stamper member 14 is exfoliated while a first spacer layer 13a formed from the energy ray-curing resin by means of the radiation of the energy ray is left on the disk-shaped substrate. Then, a second recording layer is formed on the surface of the first spacer layer transcribed from the first transcription surface, and the energy ray-curing resin is applied to the inner circumference of the second recording layer, and then the stamper member after its exfoliation is arranged so that a second transcription surface 16 opposite to the first transcription surface may face the disk-shaped substrate. A third recoding layer is formed on the second recording layer in the same manner as mentioned above.


Inventors:
KOMAKI TAKESHI
Application Number:
JP2003318118A
Publication Date:
March 31, 2005
Filing Date:
September 10, 2003
Export Citation:
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Assignee:
TDK CORP
International Classes:
B29C35/08; B29C39/02; B29C39/08; B29C39/10; B29C43/02; B29C43/10; B29D17/00; G11B7/24; G11B7/24038; G11B7/24056; G11B7/26; B29C59/02; (IPC1-7): G11B7/26; G11B7/24
Attorney, Agent or Firm:
Keijiro Tamura
Kenichi Kobayashi