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    • 4. 发明申请
    • ELECTROSTATIC CHUCK DEVICE
    • 静电切割装置
    • US20170069519A1
    • 2017-03-09
    • US15248774
    • 2016-08-26
    • SHINKO ELECTRIC INDUSTRIES CO., LTD.
    • NORIO SHIRAIWA
    • H01L21/683
    • H01L21/68757H01L21/6831
    • An electrostatic chuck device includes a base plate, an electrostatic chuck plate coupled to an upper surface of the base plate and including a mount region on which an attraction subject is mounted, an electrostatic electrode embedded in the chuck plate, a focus ring that is located on the upper surface of the base plate and covers an outer side surface and a portion of an upper surface of the chuck plate. A groove is located in the upper surface of the chuck plate at a portion that corresponds to a region between the focus ring and the mount region in a plan view. The groove is filled with a protective layer. The groove is located at a position separated from the electrostatic electrode in a plan view. The protective layer is formed from a material having a higher plasma resistance than a material forming the chuck plate.
    • 一种静电吸盘装置,包括基板,耦合到基板的上表面的静电卡盘板,并且包括安装有吸引物体的安装区域,嵌入卡盘板中的静电电极,位于 在基板的上表面上,并且覆盖卡盘板的外侧面和上表面的一部分。 在平面图中,在卡盘板的上表面中的与聚焦环和安装区域之间的区域对应的部分设置有凹槽。 凹槽填充有保护层。 凹槽在平面图中位于与静电电极分离的位置。 保护层由具有比形成卡板的材料的等离子体电阻高的材料形成。