Positioning system, lithographic apparatus and device manufacturing method
    13.
    发明授权
    Positioning system, lithographic apparatus and device manufacturing method 有权
    定位系统,光刻设备及器件制造方法

    公开(公告)号:US09383659B2

    公开(公告)日:2016-07-05

    申请号:US14407038

    申请日:2013-06-13

    CPC classification number: G03F7/70775 G03F7/70783

    Abstract: There is provided a positioning system for positioning an object in a lithographic apparatus. The positioning system includes a support, a position measurement device, a deformation sensor and a processor. The support is constructed to hold the object. The position measurement device is configured to measure a position of the support. The position measurement device includes at least one position sensor target and a plurality of position sensors to cooperate with the at least one position sensor target to provide a redundant set of position signals representing the position of the support. The deformation sensor is arranged to provide a deformation signal representing a deformation of one of the support and the position measurement device. The processor is configured to calibrate one of the position measurement device and the deformation sensor based on the deformation signal and the redundant set of position signals.

    Abstract translation: 提供了一种用于将物体定位在光刻设备中的定位系统。 定位系统包括支撑件,位置测量装置,变形传感器和处理器。 构造支撑件来保持对象。 位置测量装置被配置为测量支撑件的位置。 所述位置测量装置包括至少一个位置传感器目标和多个位置传感器,以与所述至少一个位置传感器目标配合,以提供代表所述支撑件的位置的冗余的一组位置信号。 变形传感器被布置成提供表示支撑件和位置测量装置之一的变形的变形信号。 处理器被配置为基于变形信号和冗余的位置信号集来校准位置测量装置和变形传感器之一。

    LITHOGRAPHIC APPARATUS, DEVICE MANUFACTURING METHOD AND DISPLACEMENT MEASUREMENT SYSTEM
    14.
    发明申请
    LITHOGRAPHIC APPARATUS, DEVICE MANUFACTURING METHOD AND DISPLACEMENT MEASUREMENT SYSTEM 有权
    平面设备,设备制造方法和位移测量系统

    公开(公告)号:US20150212428A1

    公开(公告)日:2015-07-30

    申请号:US14419910

    申请日:2013-08-02

    CPC classification number: G03F7/70483 G03F7/70725 G03F7/70775

    Abstract: A lithographic apparatus including a moveable object (WT) and a displacement measuring system arranged to determine a position quantity of the moveable object. The displacement measuring system includes an encoder (BC) and a grid structure. One of the encoder and the grid structure is connected to the moveable object. The grid structure includes a high precision grid portion (HG) and a low precision grid portion (LG). The encoder is arranged to cooperate with the high precision grid portion to determine the position quantity relative to the grid structure with a high precision. The encoder is arranged to cooperate with the low precision grid portion to determine the position quantity relative to the grid structure with a low precision.

    Abstract translation: 一种光刻设备,包括可移动物体(WT)和位移测量系统,其布置成确定可移动物体的位置量。 位移测量系统包括编码器(BC)和网格结构。 编码器和网格结构之一连接到可移动对象。 栅格结构包括高精度栅格部分(HG)和低精度栅格部分(LG)。 编码器配置成与高精度格栅部分配合,以高精度确定相对于格栅结构的位置量。 编码器配置成与低精度格栅部分配合,以较低精度确定相对于格栅结构的位置数量。

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