发明申请
- 专利标题: METHOD FOR FORMING PATTERN OF SEMICONDUCTOR DEVICE
- 专利标题(中): 形成半导体器件图案的方法
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申请号: US12163864申请日: 2008-06-27
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公开(公告)号: US20090075485A1公开(公告)日: 2009-03-19
- 发明人: Keun Do BAN , Jun Hyeub SUN
- 申请人: Keun Do BAN , Jun Hyeub SUN
- 申请人地址: KR Icheon-si
- 专利权人: Hynix Semiconductor Inc
- 当前专利权人: Hynix Semiconductor Inc
- 当前专利权人地址: KR Icheon-si
- 优先权: KR10-2007-0094837 20070918
- 主分类号: H01L21/308
- IPC分类号: H01L21/308
摘要:
A method for forming a fine pattern of a semiconductor device comprises: forming a first hard mask film and an etch barrier film over a semiconductor substrate; forming a sacrificial pattern over the etch barrier film; forming a spacer on sidewalls of the sacrificial pattern; removing the sacrificial pattern; etching the etch barrier film and the hard mask film with the spacer as an etch mask to form an etch barrier pattern and a hard mask pattern; and removing the spacer and the etch barrier pattern, thereby improving yield and reliability of the device.
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