发明名称 |
Semiconductor device with core and periphery regions |
摘要 |
A method for forming a semiconductor device that includes a line and space pattern with variable pitch and critical dimensions in a layer on a substrate. The substrate includes a first region (e.g., a core region) and a second region (e.g., a periphery region). A first sub-line and space pattern in the first region comprises a space of a dimension (A) less than achievable by lithographic processes alone. Further, a second sub-line and space pattern in the second region comprises at least one line including a second critical dimension (B) achievable by lithography. The method uses two critical masking steps to form a hard mask that includes in the core region a critical dimension (A) less than achievable at a resolution limit of lithography. Further, the method uses a single etch step to transfer the pattern of the hard mask to the layer.
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申请公布号 |
US6995437(B1) |
申请公布日期 |
2006.02.07 |
申请号 |
US20040869774 |
申请日期 |
2004.06.16 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
KINOSHITA HIROYUKI;SUN YU;BANERJEE BASAB;FOSTER CHRISTOPHER M.;BEHNKE JOHN R.;TABERY CYRUS |
分类号 |
H01L31/119;H01L21/8242;H01L21/8246;H01L27/105 |
主分类号 |
H01L31/119 |
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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