Plasma reactor and processes using RF inductive coupling and scavenger
temperature control
    9.
    发明授权
    Plasma reactor and processes using RF inductive coupling and scavenger temperature control 失效
    等离子体反应器和使用射频感应耦合和清除温度控制的工艺

    公开(公告)号:US5888414A

    公开(公告)日:1999-03-30

    申请号:US936777

    申请日:1997-09-24

    摘要: A plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching oxygen-containing layers overlying non-oxygen-containing layers with high selectivity. Auxiliary RF bias energy applied to the wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with other etch processes, deposition processes and combined etch/deposition processes. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields. Etching of an oxygen-containing layer overlying a non-oxygen-containing layer can be achieved with high selectivity.

    摘要翻译: 等离子体反应室使用由RF能量(LF,MF或VHF)驱动的天线,其被感应耦合在反应堆穹顶内。 天线在室内产生高密度,低能量的等离子体,用于以高选择性蚀刻覆盖在非含氧层上的含氧层。 施加到晶片支撑阴极的辅助RF偏置能量控制阴极护套电压并且独立于密度来控制离子能量。 公开了各种磁和电压处理增强技术,以及其它蚀刻工艺,沉积工艺和组合蚀刻/沉积工艺。 所公开的发明提供敏感设备的处理而不损坏和不加载,从而提高产量。 可以以高选择性实现覆盖非含氧层的含氧层的蚀刻。