Methods and apparatus for producing stable low k FSG film for HDP-CVD
    2.
    发明申请
    Methods and apparatus for producing stable low k FSG film for HDP-CVD 失效
    用于生产用于HDP-CVD的稳定的低k FSG膜的方法和设备

    公开(公告)号:US20020173167A1

    公开(公告)日:2002-11-21

    申请号:US09818359

    申请日:2001-03-26

    IPC分类号: H01L021/469

    摘要: Methods and apparatus of the present invention deposit fluorinated silicate glass (FSG) in such a manner that it strongly adheres to an overlying or underlying barrier layer or etch stop layer, and has a lower dielectric constant, among other benefits. In one embodiment, silicon tetrafluoride (SiF4), oxygen (O2), and argon (Ar) are used as the reactant gases, with the ratio of oxygen to silicon controlled to be at between about 2:1 to 6:1. Such O2 levels help reduce the amount of degradation of ceramic chamber components otherwise caused by the elimination of silane from the process recipe.

    摘要翻译: 本发明的方法和装置以这样的方式沉积氟化硅酸盐玻璃(FSG),使得它强烈地粘附到上覆的或下面的阻挡层或蚀刻停止层,并具有较低的介电常数以及其它益处。 在一个实施方案中,使用四氟化硅(SiF 4),氧(O 2)和氩(Ar)作为反应气体,其中氧与硅的比例控制在约2:1至6:1之间。 这种O 2水平有助于减少陶瓷室组分的降解量,否则由工艺配方消除硅烷引起。