Method of etching
    12.
    发明授权
    Method of etching 有权
    蚀刻方法

    公开(公告)号:US09048066B2

    公开(公告)日:2015-06-02

    申请号:US13934531

    申请日:2013-07-03

    CPC classification number: H01J37/20 H01J37/321 H01J37/32862 H01J2237/334

    Abstract: A method is for etching successive substrates on a platen in an inductively coupled plasma chamber in which the etching process results in carbonaceous deposits in the chamber. The method includes (a) interrupting the etching processing of substrates, (b) running an oxygen or oxygen containing plasma within the chamber and removing gaseous by-products, and (c) resuming the etch processing of substrates. The method is characterized in that it further includes the step of running an argon plasma in the chamber after step (b) with the platen biased.

    Abstract translation: 一种方法是用于在电感耦合等离子体室中的压板上蚀刻连续的衬底,其中蚀刻工艺导致腔室中的碳质沉积物。 该方法包括(a)中断衬底的蚀刻处理,(b)在室内运行含氧或含氧等离子体并除去气体副产物,以及(c)恢复衬底的蚀刻处理。 该方法的特征在于它还包括在步骤(b)之后在压板偏压的情况下在室中运行氩等离子体的步骤。

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