Apparatus with etchant mixing assembly for removal of unwanted electroplating deposits
    1.
    发明授权
    Apparatus with etchant mixing assembly for removal of unwanted electroplating deposits 失效
    具有用于去除不需要的电镀沉积物的蚀刻剂混合组件的装置

    公开(公告)号:US06494219B1

    公开(公告)日:2002-12-17

    申请号:US09614406

    申请日:2000-07-12

    IPC分类号: B08B308

    摘要: Embodiments of the invention generally provide an etchant mixing assembly for a semiconductor processing system. The etchant mixing assembly includes at least one acid source, at least one oxidizer source, a mixing tank selectively in fluid communication with the at least one acid source and the at least one oxidizer source, and a mixed etchant tank in fluid communication with the mixing tank. Additionally, a system controller configured to sense a low level of fluid in the mixed etchant tank, cause a fresh fluid solution to be mixed in the mixing tank, and cause the fresh fluid solution to the communicated to the mixed etchant tank is also provided in the etchant mixing assembly.

    摘要翻译: 本发明的实施例通常提供用于半导体处理系统的蚀刻剂混合组件。 蚀刻剂混合组件包括至少一个酸源,至少一个氧化剂源,选择性地与至少一个酸源和至少一个氧化剂源流体连通的混合罐,以及与混合物流体连通的混合蚀刻剂罐 坦克。 另外,系统控制器被配置为感测混合蚀刻剂槽中的低水平的流体,使得新鲜的流体溶液在混合罐中混合,并且使新鲜的流体溶液与混合的蚀刻剂槽相连,也提供在 蚀刻剂混合组件。