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    • 1. 发明授权
    • Welded susceptor assembly
    • 焊接基座组件
    • US5522937A
    • 1996-06-04
    • US237084
    • 1994-05-03
    • Sandy M. ChewDale R. DuBoisRonald L. RoseManus Wong
    • Sandy M. ChewDale R. DuBoisRonald L. RoseManus Wong
    • C23C16/44C23C16/458C23C16/50H01L21/205H01L21/302H01L21/3065H01L21/683H01L21/687C23C16/00
    • H01L21/68764C23C16/458H01L21/68707H01L21/68785H01L21/68792
    • A susceptor support arm assembly in a substrate processing chamber includes a secure ground connection between the susceptor and ground. An aluminum wire rope is welded to a winged terminal lug which is tightly inserted into a hole in a susceptor hub. The wings of the lug are then welded to the hub. The wire rope, now permanently attached to the susceptor hub, is routed through an opening in the susceptor end of a ceramic susceptor support arm, able to pass the ground end lug of the wire rope, through a channel in the support arm back to the susceptor arm support device, and to ground. The channel in the susceptor arm has grooves in its sides to receive a paddle shaped ceramic cover to enclose the channel and the bottom of the hub end of the susceptor arm. The cover insulates, isolates, and shields the grounding wire and thermocouple leads being routed from the susceptor hub back to the support end of the susceptor arm from exposure to the high intensity radiant energy directed at the back of the susceptor. Conical spring washers and shoulder screws, attach the metallic pieces (e.g. the susceptor hub) to the ceramic susceptor hub arm allowing for the differential thermal expansion between pieces without overstressing the ceramic material clamped. Surface treatment of the metallic pieces enhances their corrosion resistance.
    • 衬底处理室中的感受器支撑臂组件包括在基座和地面之间的牢固接地连接。 铝丝绳焊接到紧密插入基座毂孔中的翼形端子凸耳上。 接头的翼部然后焊接到轮毂。 现在永久地连接到基座轮毂上的钢丝绳穿过陶瓷基座支撑臂的基座端部的开口,该开口能够使钢丝索的接地端部凸起通过支撑臂中的通道回到 感受器臂支撑装置,并接地。 基座臂中的通道在其侧面具有凹槽,以容纳桨形陶瓷盖以封闭通道和基座臂的毂端的底部。 盖子将接地线和热电偶引线绝缘,隔离和屏蔽,从接受器轮毂回到基座臂的支撑端,暴露于指向基座背面的高强度辐射能。 圆锥形弹簧垫圈和肩螺钉,将金属片(例如,基座毂)连接到陶瓷基座轮毂臂上,允许片之间的不同热膨胀,而不会对夹持的陶瓷材料施加过大的应力。 金属片的表面处理提高了其耐腐蚀性。