Hydrogen ashing enhanced with water vapor and diluent gas
    2.
    发明授权
    Hydrogen ashing enhanced with water vapor and diluent gas 有权
    用水蒸气和稀释气增加氢灰分

    公开(公告)号:US07807579B2

    公开(公告)日:2010-10-05

    申请号:US11737731

    申请日:2007-04-19

    IPC分类号: H01L21/302

    摘要: An oxygen-free hydrogen plasma ashing process particularly useful for low-k dielectric materials based on hydrogenated silicon oxycarbide materials. The main ashing step includes exposing a previously etched dielectric layer to a plasma of hydrogen and optional nitrogen, a larger amount of water vapor, and a yet larger amount of argon or helium. Especially for porous low-k dielectrics, the main ashing plasma additionally contains a hydrocarbon gas such as methane. The main ashing may be preceded by a short surface treatment by a plasma of a hydrogen-containing reducing gas such as hydrogen and optional nitrogen.

    摘要翻译: 无氧氢等离子体灰化处理特别适用于基于氢化碳氧化硅材料的低k电介质材料。 主灰化步骤包括将先前蚀刻的电介质层暴露于氢和任选的氮的等离子体,更大量的水蒸汽和更大量的氩或氦。 特别是对于多孔低k电介质,主要灰化等离子体还含有诸如甲烷的烃气。 之前可以通过诸如氢气和任选的氮气的含氢还原气体的等离子体进行短的表面处理。

    HYDROGEN ASHING ENHANCED WITH WATER VAPOR AND DILUENT GAS
    4.
    发明申请
    HYDROGEN ASHING ENHANCED WITH WATER VAPOR AND DILUENT GAS 有权
    氢气与水蒸汽和稀释气体相加

    公开(公告)号:US20080261405A1

    公开(公告)日:2008-10-23

    申请号:US11737731

    申请日:2007-04-19

    IPC分类号: H01L21/302

    摘要: An oxygen-free hydrogen plasma ashing process particularly useful for low-k dielectric materials based on hydrogenated silicon oxycarbide materials. The main ashing step includes exposing a previously etched dielectric layer to a plasma of hydrogen and optional nitrogen, a larger amount of water vapor, and a yet larger amount of argon or helium. Especially for porous low-k dielectrics, the main ashing plasma additionally contains a hydrocarbon gas such as methane. The main ashing may be preceded by a short surface treatment by a plasma of a hydrogen-containing reducing gas such as hydrogen and optional nitrogen.

    摘要翻译: 无氧氢等离子体灰化处理特别适用于基于氢化碳氧化硅材料的低k电介质材料。 主灰化步骤包括将先前蚀刻的电介质层暴露于氢和任选的氮的等离子体,更大量的水蒸汽和更大量的氩或氦。 特别是对于多孔低k电介质,主要灰化等离子体还含有诸如甲烷的烃气。 之前可以通过诸如氢气和任选的氮气的含氢还原气体的等离子体进行短的表面处理。