Low-bias-deposited high-density-plasma chemical-vapor-deposition silicate glass layers
    1.
    发明授权
    Low-bias-deposited high-density-plasma chemical-vapor-deposition silicate glass layers 失效
    低偏压沉积高密度等离子体化学气相沉积硅酸盐玻璃层

    公开(公告)号:US06667248B2

    公开(公告)日:2003-12-23

    申请号:US09949414

    申请日:2001-09-05

    IPC分类号: H01L2131

    摘要: A method is provided for forming a fluorinated silicate glass layer with HDP-CVD having a lower dielectric constant without compromising the mechanical properties of hardness and compressive stress. A gaseous mixture comprising a silicon-containing gas, an oxygen-containing gas, and a fluorine-containing gas is provided to a process chamber. The ratio of the flow rate of the fluorine-containing gas to the flow rate of the silicon-containing gas is greater than 0.65. A high-density plasma is generated from the gaseous mixture by applying a source RF power having a power density less than 12 W/cm2. A bias is applied to a substrate in the process chamber at a bias power density greater than 0.8 W/cm2 and less than 2.4 W/cm2. The fluorinated silicate glass layer is deposited onto the substrate using the high-density plasma.

    摘要翻译: 提供了一种用于在不影响硬度和压缩应力的机械性能的情况下形成具有较低介电常数的HDP-CVD的氟化硅酸盐玻璃层的方法。 将包含含硅气体,含氧气体和含氟气体的气体混合物提供到处理室。 含氟气体的流量与含硅气体的流量比大于0.65。 通过施加功率密度小于12W / cm 2的源RF功率,从气体混合物产生高密度等离子体。 以大于0.8W / cm 2且小于2.4W / cm 2的偏置功率密度对处理室中的衬底施加偏压。 使用高密度等离子体将氟化硅酸盐玻璃层沉积在基板上。

    STABILIZING AN OPENED CARBON HARDMASK
    5.
    发明申请
    STABILIZING AN OPENED CARBON HARDMASK 审中-公开
    稳定开放的碳化钨

    公开(公告)号:US20080102553A1

    公开(公告)日:2008-05-01

    申请号:US11555160

    申请日:2006-10-31

    IPC分类号: H01L21/00

    摘要: A process for passivating a carbon-based hard mask, for example, of hydrogenated amorphous carbon, overlying an oxide dielectric which is to be later etched according to the pattern of the hard mask. After the hard mask is photo lithographically etched, it is exposed to a plasma of a hydrogen-containing reducing gas, preferably hydrogen gas, and a fluorocarbon gas, preferably trifluoromethane. The substrate can then be exposed to air without the moisture condensing in the etched apertures of the hard mask.

    摘要翻译: 钝化覆盖氧化物电介质的碳氢化硬掩模(例如氢化无定形碳)的方法,该氧化物电介质将根据硬掩模的图案而被蚀刻。 在硬掩模被光刻蚀刻之后,将其暴露于含氢还原气体,优选氢气和碳氟化合物气体,优选三氟甲烷的等离子体。 然后可以将衬底暴露于空气,而不会在硬掩模的蚀刻孔中凝结水分。