LITHOGRAPHIC APPARATUS, DEVICE MANUFACTURING METHOD AND ASSOCIATED DATA PROCESSING APPARATUS AND COMPUTER PROGRAM PRODUCT

    公开(公告)号:US20170184980A1

    公开(公告)日:2017-06-29

    申请号:US15325048

    申请日:2015-06-09

    Abstract: A lithographic apparatus includes a number of sensors for measuring positions of features on a substrate prior to applying a pattern. Each sensor includes an imaging optical system. Position measurements are extracted from pixel data supplied by an image detector in each sensor. The imaging optical system includes one or more light field modulating elements and the processor processes the pixel data as a light-field image to extract the position measurements. The data processor may derive from each light-field image a focused image of a feature on the substrate, measuring positions of several features simultaneously, even though the substrate is not at the same level below all the sensors. The processor can also include corrections to reduce depth dependency of an apparent position of the feature include a viewpoint correction. The data processor can also derive measurements of heights of features on the substrate.

    LITHOGRAPHIC APPARATUS
    8.
    发明申请
    LITHOGRAPHIC APPARATUS 有权
    LITHOGRAPHIC设备

    公开(公告)号:US20160109812A1

    公开(公告)日:2016-04-21

    申请号:US14965467

    申请日:2015-12-10

    Abstract: A lithographic apparatus including a substrate table position measurement system and a projection system position measurement system to measure a position of the substrate table and the projection system, respectively. The substrate table position measurement system includes a substrate table reference element mounted on the substrate table and a first sensor head. The substrate table reference element extends in a measurement plane substantially parallel to the holding plane of a substrate on substrate table. The holding plane is arranged at one side of the measurement plane and the first sensor head is arranged at an opposite side of the measurement plane. The projection system position measurement system includes one or more projection system reference elements and a sensor assembly. The sensor head and the sensor assembly or the associated projection system measurement elements are mounted on a sensor frame.

    Abstract translation: 一种光刻设备,包括基板台位置测量系统和用于分别测量基板台和投影系统的位置的投影系统位置测量系统。 衬底台位置测量系统包括安装在衬底台上的衬底台参考元件和第一传感器头。 衬底台参考元件在基本上平行于衬底台上的衬底的保持平面的测量平面中延伸。 保持平面布置在测量平面的一侧,第一传感器头布置在测量平面的相对侧。 投影系统位置测量系统包括一个或多个投影系统参考元件和传感器组件。 传感器头和传感器组件或相关联的投影系统测量元件安装在传感器框架上。

    Inspection Method and Apparatus, Substrates for use Therein and Device Manufacturing Method
    9.
    发明申请
    Inspection Method and Apparatus, Substrates for use Therein and Device Manufacturing Method 有权
    检验方法和装置,其使用的基板和装置制造方法

    公开(公告)号:US20160097983A1

    公开(公告)日:2016-04-07

    申请号:US14892880

    申请日:2014-05-02

    Abstract: A substrate is provided with device structures and metrology structures (800). The device structures include materials exhibiting inelastic scattering of excitation radiation of one or more wavelengths. The device structures include structures small enough in one or more dimensions that the characteristics of the inelastic scattering are influenced significantly by quantum confinement. The metrology structures (800) include device-like structures (800b) similar in composition and dimensions to the device features, and calibration structures (800a). The calibration structures are similar to the device features in composition but different in at least one dimension. Using an inspection apparatus and method implementing Raman spectroscopy, the dimensions of the device-like structures can be measured by comparing spectral features of radiation scattered inelastically from the device-like structure and the calibration structure.

    Abstract translation: 衬底具有器件结构和计量结构(800)。 器件结构包括显示一个或多个波长的激发辐射的非弹性散射的材料。 器件结构包括在一个或多个维度上足够小的结构,非弹性散射的特性受到量子限制的显着影响。 测量结构(800)包括与装置特征相似的组成和尺寸的装置状结构(800b)和校准结构(800a)。 校准结构类似于组合中的器件特征,但至少在一个维度上不同。 通过使用实施拉曼光谱的检查装置和方法,可以通过比较从器件状结构和校准结构中弹性散射的辐射的光谱特征来测量器件状结构的尺寸。

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