Systems and methods that mitigate contamination and modify surface characteristics during ion implantation processes through the introduction of gases
    2.
    发明授权
    Systems and methods that mitigate contamination and modify surface characteristics during ion implantation processes through the introduction of gases 有权
    通过引入气体减少离子注入过程中的污染和改变表面特性的系统和方法

    公开(公告)号:US07511287B2

    公开(公告)日:2009-03-31

    申请号:US11273039

    申请日:2005-11-14

    IPC分类号: H01J37/36

    摘要: A contamination mitigation or surface modification system for ion implantation processes includes a gas source, a controller, a valve, and a process chamber. The gas source provides delivery of a gas, be it atmospheric or reactive, to the valve and is controlled by the controller. The valve is located on or about the process chamber and controllably adjusts flow rate and/or composition of the gas to the process chamber. The process chamber holds a target device, such as a target wafer and permits interaction of the gas with an ion beam to mitigate contamination of the target wafer and/or to modify the existing properties of the processing environment or target device to change a physical or chemical state or characteristic thereof. The controller selects and adjusts composition of the gas and flow rate according to contaminants present within the ion beam, or lack thereof, as well total or partial pressure analysis.

    摘要翻译: 用于离子注入工艺的污染减轻或表面改性系统包括气源,控制器,阀和处理室。 气体源提供气体(无论是大气还是反应性)到阀门的输送,并由控制器控制。 阀位于处理室上或周围,并可控制地调节气体和/或组成气体到处理室。 处理室保持诸如目标晶片的目标装置,并且允许气体与离子束的相互作用以减轻目标晶片的污染和/或修改处理环境或目标装置的现有属性以改变物理或 化学状态或其特性。 控制器根据存在于离子束内的污染物或其缺乏以及全部或分压分析来选择和调整气体和流速的组成。