发明名称 |
METHOD AND DEVICE FOR FOCUS MONITOR, AND MANUFACTURING METHOD OF SEMICONDUCTOR |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and a device for focus monitor which have a high detection sensitivity in the z direction and don't require replacement of an illumination aperture and to provide a manufacturing method of a semiconductor device. SOLUTION: The focus monitor method uses modified illumination to transfer the pattern of a photo mask 5 for phase shift focus monitor to a photo resist 21b on a semiconductor substrate 21a. The photo mask 5 for phase shift focus monitor has first and second light transmission parts 5c and 5d adjacent to each other across a light shielding pattern 5b between them and is so constituted that a phase difference other than 180 deg. may be given for respective exposure light transmitted through the first and second light transmission parts 5c and 5d.</p> |
申请公布号 |
JP2003057800(A) |
申请公布日期 |
2003.02.26 |
申请号 |
JP20010241865 |
申请日期 |
2001.08.09 |
申请人 |
MITSUBISHI ELECTRIC CORP |
发明人 |
NAKAO SHUJI;MIYAMOTO YUKI;MAEJIMA SHINROKU |
分类号 |
G02B7/28;G03F1/30;G03F1/44;G03F1/68;G03F7/207;H01L21/027;(IPC1-7):G03F1/08 |
主分类号 |
G02B7/28 |
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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