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    • 7. 发明授权
    • Wafer chuck having thermal plate with interleaved heating and cooling elements
    • 晶圆卡盘具有带有交错加热和冷却元件的热板
    • US06969830B2
    • 2005-11-29
    • US10465716
    • 2003-06-19
    • Kenneth M. Cole, Sr.William M. StoneDouglas S. Olsen
    • Kenneth M. Cole, Sr.William M. StoneDouglas S. Olsen
    • H05B3/18C23C16/00G01R31/28H01L21/00H01L21/02H01L21/66H01L21/683H01L21/687H05B3/70H01B3/68C27C16/00
    • H01L21/67109G01R31/2891H01L21/67103H01L21/68785
    • A workpiece chuck includes a thermal plate assembly which includes both heating and cooling capability. The heating element can be a resistive heater in a coiled configuration disposed in a plane. The cooling can be performed via a cooling fluid circulated through cooling tubes which are also disposed in a coiled configuration in a plane. The plane of the heating element and the cooling tubes can be the same plane, and that plane can be a center plane of the thermal plate assembly. By locating the heating and cooling in the same plane, uniform heating and cooling are achieved. Also, by locating the heating element and cooling tubes in the center of the thermal plate, distortions such as doming and dishing in the thermal plate are eliminated such that the wafer can be held extremely flat on the chuck. The heating element and cooling tubes are coiled in an interleaved fashion to provide uniform heating and cooling while allowing them to simultaneously occupy the same plane.
    • 工件卡盘包括包括加热和冷却能力的热板组件。 加热元件可以是布置在平面中的盘绕构造的电阻加热器。 冷却可以通过冷却管循环的冷却流体进行,冷却管也被设置在平面内的盘绕结构中。 加热元件和冷却管的平面可以是相同的平面,并且该平面可以是热板组件的中心平面。 通过将加热和冷却定位在同一平面上,实现均匀的加热和冷却。 此外,通过将加热元件和冷却管定位在热板的中心,消除了热板中的翘曲和凹陷等变形,使得晶片能够在卡盘上保持非常平坦。 加热元件和冷却管以交错方式盘绕,以提供均匀的加热和冷却,同时允许它们同时占据同一平面。