发明名称 |
Method for manufacturing stamper for information medium manufacture, stamper, and photoresist master disk |
摘要 |
A stamper with a sharp uneven pattern is obtained, and high precision information media can be manufactured using this stamper. A photoresist master 100 is manufactured by forming a light absorption layer 103 with a film thickness T that satisfies T>180 (nm) and a photoresist layer 104 , in that order, on top of a substrate 102 , and then forming an uneven pattern 106 in the photoresist layer 104 by forming and developing a latent image, and a stamper 120 is manufactured by forming a Ni thin film 108 on top of the uneven pattern 106 of the photoresist master 100 by electroless plating, forming a Ni film 110 on top of this Ni thin film 108 by electroforming, and then separating the Ni thin film 108 and the Ni film 110 from the photoresist master 100.
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申请公布号 |
US2005118534(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20040500893 |
申请日期 |
2004.07.07 |
申请人 |
OYAKE HISAJI;TAKAHATA HIROAKI;YONEYAMA KENJI;KAWAGUCHI YUUICHI |
发明人 |
OYAKE HISAJI;TAKAHATA HIROAKI;YONEYAMA KENJI;KAWAGUCHI YUUICHI |
分类号 |
G11B7/26;(IPC1-7):G03C5/00 |
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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