发明申请
- 专利标题: Method for forming gate in semiconductor device
- 专利标题(中): 在半导体器件中形成栅极的方法
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申请号: US11156287申请日: 2005-06-17
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公开(公告)号: US20060211186A1公开(公告)日: 2006-09-21
- 发明人: Yun Chun , Hyung Choi
- 申请人: Yun Chun , Hyung Choi
- 优先权: KR10-2005-0021390 20050315
- 主分类号: H01L21/8234
- IPC分类号: H01L21/8234 ; H01L21/4763 ; H01L21/3205
摘要:
Disclosed herein is a method for forming a gate in a semiconductor device, which can improve the characteristics of the device. The method comprises the steps of: providing a substrate having active and field regions; selectively etching a portion of the active region to form a trench; forming on the substrate including the trench an amorphous conductive film for forming a gate; subjecting the resulting structure to an annealing process so as to convert the amorphous conductive film into a crystalline conductive film; and selectively etching the crystalline conductive film so as to form a gate covering the corner portion of the trench.
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