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    • 10. 发明申请
    • ELECTROSTATIC CHUCK APPARATUS
    • 静电卡装置
    • US20090086401A1
    • 2009-04-02
    • US11864288
    • 2007-09-28
    • Tugrul SamirTerry BluckDennis Grimard
    • Tugrul SamirTerry BluckDennis Grimard
    • H01L21/683H01L21/67H02N13/00
    • H01L21/6831
    • An electrostatic chuck includes an angled conduit, or an angled laser drilled passage, through which a heat transfer gas is provided. A segment of the angled conduit and/or the angled laser drilled passage extends along an axis different from an axis of the electric field generated to hold a substrate to the chuck, thereby minimizing plasma arcing and backside gas ionization. A first plug may be inserted into the conduit, wherein a segment of a first exterior channel thereof extends along an axis different from an axis of the electric field. A first and second plug may be inserted into a ceramic sleeve which extends through at least one of the dielectric member and the electrode. Finally, the surface of the dielectric member may comprise embossments arranged at radial distances from the center of the dielectric member so as to improve heat transfer and gas distribution.
    • 静电卡盘包括成角度的导管或成角度的激光钻孔通道,通过该通道提供传热气体。 成角度的管道和/或成角度的激光钻孔通道的一段沿着不同于将基板保持在卡盘上的电场的轴线不同的轴线延伸,从而最小化等离子体电弧放电和背侧气体电离。 第一塞子可以插入导管中,其中第一外部通道的一段沿着不同于电场的轴线的轴线延伸。 第一和第二插头可以插入延伸穿过电介质构件和电极中的至少一个的陶瓷套管中。 最后,电介质构件的表面可以包括布置在离电介质构件的中心的径向距离处的凸起,以便改善传热和气体分布。