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    • 6. 发明授权
    • Method and apparatus for purging the back side of a substrate during
chemical vapor processing
    • 用于在化学气相处理期间净化衬底的背面的方法和装置
    • US5884412A
    • 1999-03-23
    • US687166
    • 1996-07-24
    • James V. TietzBenjamin BiermanDavid S. Ballance
    • James V. TietzBenjamin BiermanDavid S. Ballance
    • C23C16/44C23C16/455F26B11/18
    • C23C16/45521C23C16/455
    • A method of processing a disk-shaped substrate, or wafer, during a chemical vapor process includes a backside purge of the substrate with a purge gas. The backside purge is obtained by spinning the substrate about a central axis, directing a flow of the purge gas over the backside of the spinning substrate, and causing the purge gas to flow in an outward radial direction with the spinning substrate. An apparatus in a vapor processing system structured for conducting the backside purge includes a support mechanism structured and arranged to support the substrate and spin the substrate about a central axis, and a conduit coupled to a source of purge gas, structured and arranged to direct a flow of the purge gas over a backside of the substrate while the substrate is spinning such that the spinning substrate causes the purge gas to flow radially outward.
    • 在化学蒸汽处理过程中处理盘形基板或晶片的方法包括用吹扫气体对基板进行背面吹扫。 背面吹扫是通过围绕中心轴线旋转衬底而获得的,该吹扫气体引导吹扫气体流过纺丝衬底的背面,并使吹扫气体与旋转衬底沿向外径向流动。 构造用于进行背面清洗的蒸气处理系统中的装置包括构造和布置成支撑基板并围绕中心轴线旋转基板的支撑机构,以及耦合到吹扫气体源的导管,其被构造和布置成引导 当衬底旋转时,吹扫气体在衬底的背面上流动,使得纺丝衬底使吹扫气体径向向外流动。
    • 10. 发明授权
    • Magnetically-levitated rotor system for an RTP chamber
    • 用于RTP室的磁悬浮转子系统
    • US6157106A
    • 2000-12-05
    • US879497
    • 1997-05-16
    • James V. TietzBenjamin Bierman
    • James V. TietzBenjamin Bierman
    • H01L21/205H01L21/00H01L21/26H01L21/687H02K7/09
    • H01L21/68785F16C32/047H01L21/68792
    • Accomodations for a magnetically levitated rotating system in an RTP chamber are provided. The system includes a magnetically permeable rotor; a cylindrical thin wall concentric with and surrounding the rotor; and a magnetic stator assembly adjacent the cylindrical thin wall. The radial distance between the rotor and the magnetic stator assembly is small enough that a magnetic field created by the stator assembly magnetically levitates the rotor but is great enough that the rotor does not physically contact the thin wall upon thermal expansion. The system is such that the relative positions of a plurality of sensors which determine the position of a rotating frame is maintained upon dismantling. Thermal isolation of the area including the rotor is accomplished from the reactive gases in a processing area of the RTP chamber. The rotor may be cooled by a number of cooling chambers formed within the chamber.
    • 提供了一个用于RTP室中的磁悬浮旋转系统的住宿。 该系统包括导磁转子; 与转子同心并围绕转子的圆柱形薄壁; 以及邻近圆柱形薄壁的磁性定子组件。 转子和磁性定子组件之间的径向距离足够小,使得由定子组件产生的磁场使转子磁悬浮,但足够大,使得转子在热膨胀时不与薄壁物理接触。 该系统使得在拆卸时保持确定旋转框架的位置的多个传感器的相对位置。 包括转子在内的区域的热隔离由RTP室的处理区域内的反应性气体完成。 转子可以由在室内形成的多个冷却室冷却。