Use of silicon containing gas for CD and profile feature enhancements of gate and shallow trench structures
    3.
    发明授权
    Use of silicon containing gas for CD and profile feature enhancements of gate and shallow trench structures 有权
    使用含硅气体用于CD和轮廓特征增强了栅极和浅沟槽结构

    公开(公告)号:US07098141B1

    公开(公告)日:2006-08-29

    申请号:US10376227

    申请日:2003-03-03

    IPC分类号: H01L21/302

    摘要: A semiconductor manufacturing process provides a shallow trench in a silicon layer using a silicon containing etch gas to provide controlled top and/or bottom rounding of the trench or to enhance profile control and/or critical dimension control by controlled deposition across a semiconductor substrate. A gate structure can be etched on a semiconductor substrate using a silicon containing gas to enhance profile control and/or critical dimension control.

    摘要翻译: 半导体制造工艺使用含硅蚀刻气体在硅层中提供浅沟槽,以提供受控的沟槽的顶部和/或底部圆整,或通过半导体衬底上的受控沉积来增强轮廓控制和/或临界尺寸控制。 可以使用含硅气体在半导体衬底上蚀刻栅极结构,以增强轮廓控制和/或临界尺寸控制。