MULTI-STEP PHOTOMASK ETCHING WITH CHLORINE FOR UNIFORMITY CONTROL
    1.
    发明申请
    MULTI-STEP PHOTOMASK ETCHING WITH CHLORINE FOR UNIFORMITY CONTROL 有权
    多级光电子蚀刻用氯乙烯进行均匀控制

    公开(公告)号:US20080142476A1

    公开(公告)日:2008-06-19

    申请号:US11612036

    申请日:2006-12-18

    IPC分类号: C23F1/00

    CPC分类号: G03F1/30

    摘要: Methods for etching quartz are provided herein. In one embodiment, a method of etching quartz includes providing a film stack on a substrate support disposed in a processing chamber, the film stack having a quartz layer partially exposed through a patterned layer; and etching the quartz layer of the film stack in a multi-step process including a first step of etching the quartz layer utilizing a first process gas comprising at least one fluorocarbon process gas and a chlorine-containing process gas; and a second step of etching the quartz layer utilizing a second process gas comprising at least one fluorocarbon process gas.

    摘要翻译: 本文提供了蚀刻石英的方法。 在一个实施例中,蚀刻石英的方法包括在设置在处理室中的衬底支撑件上提供膜堆叠,所述膜堆叠具有部分地通过图案化层暴露的石英层; 并且以多步骤方法蚀刻所述薄膜叠层的石英层,其包括利用包括至少一种氟碳工艺气体和含氯工艺气体的第一工艺气体来蚀刻所述石英层的第一步骤; 以及利用包含至少一种氟碳工艺气体的第二工艺气体蚀刻所述石英层的第二步骤。