Title:
マスク層を有する光学マスター基板及び高密度レリーフ構造の製造方法
Document Type and Number:
Japanese Patent JP2007533064
Kind Code:
A
Abstract:
The invention relates to a master substrate, a method for making a high-density relief structure, and optical discs replicated with the high-density relief structure, the master substrate comprising a substrate layer ( 10 ) and a recording stack deposited on the substrate layer, the recording stack comprising: a mask layer ( 12 ) an interface layer ( 11 ) sandwiched between said mask layer and the substrate, said mask layer comprising a recording material for forming marks and spaces representing an encoded data pattern, said forming of marks by thermal decomposition by a focused laser beam and said marks having a different phase than the unrecorded material. A very high-density relief structure is achieved.
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Inventors:
Elwin Elmainders
Rolf Arohi
Rolf Arohi
Application Number:
JP2007507899A
Publication Date:
November 15, 2007
Filing Date:
April 08, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G11B7/26
Domestic Patent References:
| JPH0845115A | 1996-02-16 | |||
| JPH0660440A | 1994-03-04 | |||
| JPH1097738A | 1998-04-14 | |||
| JPS60170045A | 1985-09-03 | |||
| JP2004203011A | 2004-07-22 | |||
| JP2005078738A | 2005-03-24 |
Foreign References:
| WO2003046896A2 | 2003-06-05 | |||
| WO2004008447A1 | 2004-01-22 | |||
| EP1343154A2 | 2003-09-10 |
Attorney, Agent or Firm:
Tadahiko Ito
Kosaku Sugimura
Shiro Fujitani
Kiyoshi Kuruma
Yoshiyuki Iwasa
Kosaku Sugimura
Shiro Fujitani
Kiyoshi Kuruma
Yoshiyuki Iwasa