发明名称 |
Fabrication method of stamper for optical information recording medium, master disk of stamper for optical information recording medium |
摘要 |
<p>Fabrication method of a stamper for an optical recording medium including the following steps: a step of changing crystal states of the specific portion (104) of a resist layer (103) of a master disk having an etching layer (102) and the resist layer (103) formed on the etching layer through exposure, a step of removing the specific portion (104), a step of removing the portion of the etching layer (102) overlapping the removed portion of the resist layer (103), a step of forming a conductive film (105) from which the resist layer is removed, a step of performing electroforming by using the conductive film as an electrode, and a step of exfoliating the etching layer (102) from the conductive film (105).</p> |
申请公布号 |
EP1511027(A2) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20040020654 |
申请日期 |
2004.08.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
TOMIYAMA, MORIO;ITO, EIICHI;KAWAGUCHI, YUUKO |
分类号 |
G11B7/24;G11B7/26;(IPC1-7):G11B7/26 |
主分类号 |
G11B7/24 |
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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