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    • 4. 发明授权
    • Integrated platen assembly for a chemical mechanical planarization system
    • 用于化学机械平面化系统的集成压板组件
    • US06503131B1
    • 2003-01-07
    • US09931156
    • 2001-08-16
    • Timothy J. FranklinDan A. Marohl
    • Timothy J. FranklinDan A. Marohl
    • B24B700
    • B24B37/16B24B9/10B24B21/04B24B21/20
    • Generally, a method and apparatus for supporting a web of polishing material. In one embodiment, the apparatus includes a platen and a blocker valve. The platen includes a support surface adapted to support the polishing material and a port fluidly coupled to the support surface. A housing that includes a supply port and an exit port has a venturi body disposed therein. The blocker valve has a first state whereby a flow through the housing and blocker valve causes vacuum to be drawn through the port disposed in the platen by the venturi body. In another embodiment, the flow through the venturi may be reversed by changing the state of the blocker valve to blow air through the port disposed in the platen, thereby placing the polishing material and the support surface of the platen in a spaced-apart relation.
    • 通常,用于支撑抛光材料的网的方法和装置。 在一个实施例中,该装置包括压板和阻塞阀。 压板包括适于支撑抛光材料的支撑表面和流体地联接到支撑表面的端口。 包括供给口和出口的壳体具有设置在其中的文丘里体。 阻塞阀具有第一状态,由此通过壳体和阻塞阀的流动导致真空通过文丘里管体设置在压板中的端口被抽吸。 在另一个实施例中,可以通过改变阻塞阀的状态来改变通过文丘里管的流动,从而通过设置在压板中的端口吹送空气,从而将抛光材料和压板的支撑表面间隔开来。