APPARATUS AND METHOD FOR FRONT SIDE PROTECTION DURING BACKSIDE CLEANING
    18.
    发明申请
    APPARATUS AND METHOD FOR FRONT SIDE PROTECTION DURING BACKSIDE CLEANING 审中-公开
    背景清洁期间前侧保护的装置和方法

    公开(公告)号:US20110120505A1

    公开(公告)日:2011-05-26

    申请号:US13017569

    申请日:2011-01-31

    CPC分类号: H01L21/6708 B05B1/18

    摘要: Embodiments of the present invention provide apparatus and method for front side protection while processing side and backside of a substrate. One embodiment of the present invention provides a showerhead configured to provide a purge gas to a front side of a substrate during a backside etch processing. The showerhead comprises a body configured to be disposed over the front side of the substrate. The body has a process surface configured to face the front side of the substrate. The process surface has an outer circular region, a central region, a middle region between the outer central region and the central region. The first plurality of holes are distributed in the outer circular region and configured to direct the purge gas towards an edge area of the front side of the substrate. No gas delivery hole is distributed within a substantial portion of the middle region.

    摘要翻译: 本发明的实施例提供了在处理基板的侧面和背面时用于正面保护的装置和方法。 本发明的一个实施例提供了一种喷淋头,其配置为在背面蚀刻处理期间向基板的前侧提供净化气体。 喷头包括构造成设置在基板的前侧上的主体。 主体具有配置为面向基板的前侧的工艺表面。 处理表面具有外圆周区域,中心区域,外部中心区域和中心区域之间的中间区域。 第一多个孔分布在外部圆形区域中,并被配置成将清洗气体引导到衬底前侧的边缘区域。 没有气体输送孔分布在中间区域的大部分内。