发明授权
US06440333B2 Optical recording medium, and method of manufacturing same 失效
光记录介质及其制造方法

  • 专利标题: Optical recording medium, and method of manufacturing same
  • 专利标题(中): 光记录介质及其制造方法
  • 申请号: US09841986
    申请日: 2001-04-25
  • 公开(公告)号: US06440333B2
    公开(公告)日: 2002-08-27
  • 发明人: Shin Masuhara
  • 申请人: Shin Masuhara
  • 优先权: JP10-048071 19980227
  • 主分类号: B29D1100
  • IPC分类号: B29D1100
Optical recording medium, and method of manufacturing same
摘要:
There are provided an optical recording medium and a method of manufacturing the optical recording medium. The optical recording medium has a pattern of microscopic depressions and projections molded thereon with a high fidelity of replication. The method of manufacturing the optical recording medium comprises the steps of forming a photoresist layer on a substrate; exposing a predetermined area of the photoresist layer formed on the substrate to form a plurality of trains of depressions in the photoresist layer; removing the photoresist layer between the adjoining depression trains to form a master; plating the master with a metal; separating the metal coating to form a master stamper; replicating the master stamper repeatedly an odd number of times to form a mother stamper; replicating the mother stamper to form a resin substrate; and forming at least a light-transparent layer on a surface of the resin substrate on which the mother stamper is replicated. The method can mold a pattern of microscopic depressions and projections with a high accuracy.
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