发明名称 |
SEMI-MANUFACTURED STAMPER AND METHOD OF MANUFACTURING THE SAME |
摘要 |
The invention relates to a stamper for replication of optical discs and to a method of obtaining such a stamper. The method comprises the steps of: a) obtaining a substantially disc-shaped member (100) having a first surface (105; 106); and a second surface (112) forming a back surface of the semi-manufactured stamper; said first surface being provided with a guide track (6; 6') for indicating structurable surface portions (106') of said member (100; 130); said structurable surface portions (106') being flat and substantially unstructured; b) applying a layer (120; 240;) sensitive to irradiation on said first surface (105) such that an unexposed and exposable semi-manufactured stamper is provided; c) enclosing the unexposed semi-manufactured stamper in a protective package such that the sensitive film is maintained substantially unexposed; and d) treating (S30) the semi-manufactured stamper, before performing step c), said treatment including: d1) treating said second surface (112) of the semi-manufactured stamper such that a mean surface deviation value (Rz) below (2) micrometer is obtained.
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申请公布号 |
WO9904393(B1) |
申请公布日期 |
1999.05.27 |
申请号 |
WO1998SE01387 |
申请日期 |
1998.07.15 |
申请人 |
TOOLEX ALPHA AB;BILLMAN, AAKE;OEHMAN, OVE |
发明人 |
BILLMAN, AAKE;OEHMAN, OVE |
分类号 |
G11B7/26;(IPC1-7):G11B7/26;B29C33/38 |
主分类号 |
G11B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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