Vacuum cleaning systems for polishing pads, and related methods
    5.
    发明授权
    Vacuum cleaning systems for polishing pads, and related methods 有权
    抛光垫用真空清洗系统及相关方法

    公开(公告)号:US09452506B2

    公开(公告)日:2016-09-27

    申请号:US14530163

    申请日:2014-10-31

    CPC classification number: B24B53/017

    Abstract: Vacuum cleaning systems and related methods are disclosed. A polishing pad in combination with a fluid, such as a slurry, contacts a substrate to planarize material at the surface thereof and resultantly creates debris. A cleaning system includes an enclosure body having an inlet opening which may be placed proximate to the polishing pad and an exit opening in communication with a vacuum source to remove the debris and the fluid from the polishing pad through a passageway connecting the inlet and exit openings. By including contact members secured to the enclosure body and configured to form an abutment against a working surface of the polishing pad, a Venturi effect zone between the enclosure body and the working surface of the polishing pad may be created to dislodge fluid and debris from the working surface. In this manner, scratches and contamination are avoided for later-polished substrates.

    Abstract translation: 公开了真空清洁系统及相关方法。 与诸如浆料的流体结合的抛光垫与衬底接触以在其表面平坦化材料并且导致碎屑。 清洁系统包括具有可以靠近抛光垫设置的入口开口的外壳主体和与真空源连通的出口,以通过连接入口和出口的通道从抛光垫移除碎屑和流体 。 通过包括固定到外壳主体并被配置为形成与抛光垫的工作表面的抵接件的接触构件,可以产生外壳主体和抛光垫的工作表面之间的文丘里效应区,以将流体和碎屑从 工作面 以这种方式,可以避免稍后抛光的基材产生划伤和污染。

    System and process for in situ byproduct removal and platen cooling during CMP

    公开(公告)号:US10350728B2

    公开(公告)日:2019-07-16

    申请号:US14919406

    申请日:2015-10-21

    Abstract: Polishing pad cleaning systems and related methods are disclosed. A rotatable platen comprising a polishing pad in combination with a fluid, such as a polishing fluid, contacts a substrate to planarize material at the surface thereof and resultantly creates debris. A cleaning system introduces a spray system to remove debris from the polishing pad to prevent substrate damage and improve efficiency, a waste removal system for removing used spray, used polishing fluid, and debris from the polishing pad, and a polishing fluid delivery system for providing fresh polishing fluid to the polishing pad, such that the substrate only receives fresh polishing fluid upon each complete rotation of the platen. In this manner, within die performance is enhanced, the range of certain CMP processes is improved, scratches and contamination are avoided for each polished substrate and for later-polished substrates, and platen temperatures are reduced.

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