Substrate measurement method and apparatus
    63.
    发明授权
    Substrate measurement method and apparatus 失效
    基板测量方法和装置

    公开(公告)号:US08497976B2

    公开(公告)日:2013-07-30

    申请号:US12574231

    申请日:2009-10-06

    摘要: A method and apparatus for measurement of a characteristic of a substrate. A target is present on the substrate and a measurement is performed during a scanning movement of the substrate. The scanning movement of the substrate is a linear movement and the measurement includes obtaining a reflected image of the target using a pulsed light source, the duration of a single light pulse being less than 100 psec. A lithographic apparatus includes such a measurement apparatus, and a device manufacturing method includes such a measurement method.

    摘要翻译: 一种用于测量衬底特性的方法和装置。 在基板上存在靶,并且在基板的扫描运动期间进行测量。 基板的扫描运动是线性运动,并且测量包括使用脉冲光源获得目标的反射图像,单个光脉冲的持续时间小于100psec。 光刻设备包括这样的测量设备,并且包括这种测量方法的设备制造方法。

    Lithographic apparatus and device manufacturing method involving a level sensor having a detection grating including three or more segments
    64.
    发明授权
    Lithographic apparatus and device manufacturing method involving a level sensor having a detection grating including three or more segments 有权
    涉及具有包括三个或更多个段的检测光栅的液位传感器的平版印刷设备和设备制造方法

    公开(公告)号:US08351024B2

    公开(公告)日:2013-01-08

    申请号:US12722924

    申请日:2010-03-12

    IPC分类号: G03B27/58

    CPC分类号: G01B11/0608 G03F9/7034

    摘要: A level sensor configured to determine a height level of a substrate is disclosed. The level sensor includes a projection unit to project a measurement beam having a substantially periodic radiation intensity on the substrate; a detection unit to receive the measurement beam after reflection on the substrate, the detection unit having a detection grating arranged to receive the reflected measurement beam, the detection grating comprising at least one array of three or more segments together having a length substantially equal to a length of a period of the measurement beam projected on the detection grating, and configured to split the reflected measurement beam in three or more reflected measurement beam parts, and three or more detectors each arranged to receive one of the three or more measurement beam parts; and a processing unit to calculate a height level on the basis of the measurement beam parts.

    摘要翻译: 公开了一种配置成确定基板的高度水平的液位传感器。 液位传感器包括:投影单元,用于将具有基本上周期性辐射强度的测量光束投射到基板上; 检测单元,用于在所述基板上反射之后接收所述测量光束,所述检测单元具有布置成接收所述反射的测量光束的检测光栅,所述检测光栅包括三个或更多个段的至少一个阵列,所述三个或更多个段的长度基本上等于 投影在检测光栅上的测量光束的周期的长度,并且被配置为将反射的测量光束分成三个或更多个反射的测量光束部分,以及三个或更多个检测器,每个检测器被布置成接收三个或更多个测量光束部分中的一个; 以及处理单元,其基于测量光束部分来计算高度水平。

    Inspection Apparatus and Method, Lithographic Apparatus and Lithographic Processing Cell
    68.
    发明申请
    Inspection Apparatus and Method, Lithographic Apparatus and Lithographic Processing Cell 有权
    检验设备和方法,平版印刷设备和平版印刷加工单元

    公开(公告)号:US20120033193A1

    公开(公告)日:2012-02-09

    申请号:US13186895

    申请日:2011-07-20

    IPC分类号: G03B27/54 G01J3/36

    摘要: An inspection apparatus measures a property of a substrate including a periodic structure. An illumination system provides a beam of radiation with an illumination profile including a plurality of illuminated portions. A radiation projector projects the beam of radiation onto the substrate. A detector detects radiation scattered from the periodic structure and separately detects first order diffracted radiation and at least one higher order of diffracted radiation of each of the illuminated portions. A processor determines the property of the substrate from the detected radiation. The plurality of illuminated portions are arranged such that first order diffracted radiation arising from one or more of the illuminated portions are not overlapped by zeroth order or first order diffracted radiation arising from any other of the illuminated portions. Furthermore, the plurality of illuminated portions are arranged such that first order diffracted radiation arising from the one or more of the illuminated portions are overlapped by at least one of the higher orders of diffracted radiation arising from any other of the illuminated portions.

    摘要翻译: 检查装置测量包括周期性结构的基板的性质。 照明系统提供具有包括多个照明部分的照明轮廓的辐射束。 辐射投影仪将辐射束投影到基板上。 检测器检测从周期性结构散射的辐射,并分别检测每个照明部分的一级衍射辐射和衍射辐射的至少一个高阶。 处理器根据检测到的辐射来确定衬底的性质。 多个照明部分被布置成使得从一个或多个被照射部分产生的一级衍射辐射不会被任何其他照明部分产生的零级或一级衍射辐射重叠。 此外,多个照明部分被布置成使得由一个或多个被照射部分产生的一阶衍射辐射与从任何其他照明部分产生的衍射辐射的较高阶数中的至少一个重叠。

    Inspection Method For Lithography
    69.
    发明申请
    Inspection Method For Lithography 有权
    光刻检验方法

    公开(公告)号:US20110229830A1

    公开(公告)日:2011-09-22

    申请号:US13060390

    申请日:2009-09-08

    CPC分类号: G03F7/70633 G03F7/70625

    摘要: The present invention relates to an inspection apparatus and method which include projecting a measurement radiation beam onto a target on a substrate in order to measure the radiation reflected from the target and obtain information related to properties of the substrate. In the present embodiments, the measurement spot, which is the focused beam on the substrate, is larger than the target. Information regarding the radiation reflected from the target is kept and information regarding the radiation reflected from the surface around the target is eliminated. This is done either by having no reflecting (or no specularly reflecting) surfaces around the target or by having known structures around the target, the information from which may be recognized and removed from the total reflected beam. The reflected beam is measured in the pupil plane of the projector such that the information obtained is related to diffraction orders of the reflected beam and profile, critical dimension or overlay of structures on the substrate may be determined.

    摘要翻译: 本发明涉及一种检查装置和方法,其包括将测量辐射束投射到基板上的目标上,以便测量从目标反射的辐射,并获得与基板的特性有关的信息。 在本实施例中,作为基板上的聚焦光束的测量点大于目标。 关于从目标反射的辐射的信息被保留,并且关于从目标周围的表面反射的辐射的信息被消除。 这可以通过在靶周围没有反射(或没有镜面反射)表面或通过在靶周围具有已知结构来完成,可以从总反射光束识别和去除信息。 在投影仪的瞳平面中测量反射光束,使得所获得的信息与反射光束的衍射级和轮廓,基底上的结构的临界尺寸或重叠相关。

    Overlay Measurement Apparatus, Lithographic Apparatus and Device Manufacturing Method Using Such Overlay Measurement Apparatus
    70.
    发明申请
    Overlay Measurement Apparatus, Lithographic Apparatus and Device Manufacturing Method Using Such Overlay Measurement Apparatus 有权
    覆盖测量装置,平版印刷装置和使用这种覆盖测量装置的装置制造方法

    公开(公告)号:US20110188020A1

    公开(公告)日:2011-08-04

    申请号:US13000229

    申请日:2009-05-14

    IPC分类号: G03B27/72 G01J4/00

    CPC分类号: G03F7/70633

    摘要: An overlay measurement apparatus has a polarized light source for illuminating a sample with a polarized light beam and an optical system to capture light that is scattered by the sample. The optical system includes a polarizer for transmitting an orthogonal polarization component that is orthogonal to a polarization direction of the polarized light beam. A detector measures intensity of the orthogonal polarization component. A processing unitise connected to the detector, and is arranged to process the orthogonal polarization component for overlay metrology measurement using asymmetry data derived from the orthogonal polarization component.

    摘要翻译: 覆盖测量装置具有用于利用偏振光束照射样本的偏振光源和用于捕获被样品散射的光的光学系统。 光学系统包括偏振器,用于透射与偏振光束的偏振方向正交的正交偏振分量。 检测器测量正交偏振分量的强度。 一种与检测器连接的处理单元,并且被布置为使用从正交偏振分量导出的不对称数据来处理用于覆盖测量测量的正交偏振分量。