Catadioptric Optical System for Scatterometry
    1.
    发明申请
    Catadioptric Optical System for Scatterometry 有权
    反射折射光学系统

    公开(公告)号:US20100046092A1

    公开(公告)日:2010-02-25

    申请号:US12608654

    申请日:2009-10-29

    IPC分类号: G02B17/08

    摘要: A catadioptric system is provided comprising a correcting plate and an optical system. The correcting plate is configured to condition electromagnetic radiation to correct at least one aberration. The optical system is configured to reflect a first portion of the conditioned electromagnetic radiation, to refract a second portion of the conditioned electromagnetic radiation, and to focus the reflected first portion of the conditioned electromagnetic radiation onto a target portion of a substrate. The first portion of the electromagnetic radiation is not refracted by an optical element, allowing the catadioptric optical system to operate in a broad spectral range.

    摘要翻译: 提供了包括校正板和光学系统的反折射系统。 校正板被配置为调节电磁辐射以校正至少一个像差。 光学系统被配置为反射经调节的电磁辐射的第一部分,以折射经调节的电磁辐射的第二部分,并将经调节的电磁辐射的反射的第一部分聚焦到衬底的目标部分上。 电磁辐射的第一部分不被光学元件折射,允许反射折射光学系统在宽光谱范围内操作。

    Catadioptric optical system for scatterometry
    2.
    发明授权
    Catadioptric optical system for scatterometry 有权
    反折射光学系统用于散射测量

    公开(公告)号:US07633689B2

    公开(公告)日:2009-12-15

    申请号:US11779691

    申请日:2007-07-18

    IPC分类号: G02B17/00 G02B21/00 G02B23/00

    摘要: A catadioptric optical system having a high numerical aperture operates in a wide spectral range. The catadioptric optical system includes a correcting plate, a first reflective surface and a second reflective surface. The correcting plate conditions electromagnetic radiation to correct at least one aberration. The first reflective surface is positioned to reflect the electromagnetic radiation conditioned by the correcting plate. The second reflective surface is positioned to focus the electromagnetic radiation reflected by the first reflective surface onto a target portion of a substrate. The electromagnetic radiation reflected by the first reflective surface and focused by the second reflective surface is not refracted by a refractive element, thereby enabling the catadioptric optical system to operate in a broad spectral range.

    摘要翻译: 具有高数值孔径的反折射光学系统在宽光谱范围内工作。 反折射光学系统包括校正板,第一反射表面和第二反射表面。 校正板调节电磁辐射以校正至少一个像差。 第一反射表面被定位成反射由校正板调节的电磁辐射。 第二反射表面被定位成将由第一反射表面反射的电磁辐射聚焦到基底的目标部分上。 由第一反射表面反射并由第二反射表面聚焦的电磁辐射不被折射元件折射,从而使反射折射光学系统能够在宽光谱范围内工作。

    Catadioptric Optical System for Scatterometry
    3.
    发明申请
    Catadioptric Optical System for Scatterometry 有权
    反射折射光学系统

    公开(公告)号:US20090021845A1

    公开(公告)日:2009-01-22

    申请号:US11779691

    申请日:2007-07-18

    IPC分类号: G02B17/08

    摘要: A catadioptric optical system having a high numerical aperture operates in a wide spectral range. The catadioptric optical system includes a correcting plate, a first reflective surface and a second reflective surface. The correcting plate conditions electromagnetic radiation to correct at least one aberration. The first reflective surface is positioned to reflect the electromagnetic radiation conditioned by the correcting plate. The second reflective surface is positioned to focus the electromagnetic radiation reflected by the first reflective surface onto a target portion of a substrate. The electromagnetic radiation reflected by the first reflective surface and focused by the second reflective surface is not refracted by a refractive element, thereby enabling the catadioptric optical system to operate in a broad spectral range.

    摘要翻译: 具有高数值孔径的反折射光学系统在宽光谱范围内工作。 反折射光学系统包括校正板,第一反射表面和第二反射表面。 校正板调节电磁辐射以校正至少一个像差。 第一反射表面被定位成反射由校正板调节的电磁辐射。 第二反射表面被定位成将由第一反射表面反射的电磁辐射聚焦到基底的目标部分上。 由第一反射表面反射并由第二反射表面聚焦的电磁辐射不被折射元件折射,从而使反射折射光学系统能够在宽光谱范围内工作。

    Inspection apparatus, lithographic apparatus, and device manufacturing method
    4.
    发明授权
    Inspection apparatus, lithographic apparatus, and device manufacturing method 有权
    检验仪器,光刻设备及器件制造方法

    公开(公告)号:US09285687B2

    公开(公告)日:2016-03-15

    申请号:US13608069

    申请日:2012-09-10

    IPC分类号: G03F7/20

    摘要: An inspection apparatus includes an illumination system that receives a first beam and produces second and third beams from the first beam and a catadioptric objective that directs the second beam to reflect from a wafer. A first sensor detects a first image created by the reflected second beam. A refractive objective directs the third beam to reflect from the wafer, and a second sensor detects a second image created by the reflected third beam. The first and second images can be used for CD measurements. The second beam can have a spectral range from about 200 nm to about 425 nm, and the third beam can have a spectral range from about 425 nm to about 850 nm. A third sensor may be provide that detects a third image created by the third beam reflected from the wafer. The third image can be used for OV measurements.

    摘要翻译: 检查装置包括照明系统,其接收第一光束并产生来自第一光束的第二和第三光束;以及反射折射物镜,其引导第二光束从晶片反射。 第一传感器检测由反射的第二光束产生的第一图像。 折射物镜引导第三光束从晶片反射,第二传感器检测由反射的第三光束产生的第二图像。 第一张和第二张图像可用于CD测量。 第二光束可具有从约200nm至约425nm的光谱范围,并且第三光束可具有约425nm至约850nm的光谱范围。 可以提供第三传感器,其检测由从晶片反射的第三光束产生的第三图像。 第三个图像可用于OV测量。

    Inspection Apparatus, Lithographic Apparatus, and Device Manufacturing Method
    5.
    发明申请
    Inspection Apparatus, Lithographic Apparatus, and Device Manufacturing Method 有权
    检验装置,平版印刷装置和装置制造方法

    公开(公告)号:US20130083306A1

    公开(公告)日:2013-04-04

    申请号:US13608069

    申请日:2012-09-10

    IPC分类号: G01B11/02 G03B27/54 G02B17/08

    摘要: An inspection apparatus includes an illumination system that receives a first beam and produces second and third beams from the first beam and a catadioptric objective that directs the second beam to reflect from a wafer. A first sensor detects a first image created by the reflected second beam. A refractive objective directs the third beam to reflect from the wafer, and a second sensor detects a second image created by the reflected third beam. The first and second images can be used for CD measurements. The second beam can have a spectral range from about 200 nm to about 425 nm, and the third beam can have a spectral range from about 425 nm to about 850 nm. A third sensor may be provide that detects a third image created by the third beam reflected from the wafer. The third image can be used for OV measurements.

    摘要翻译: 检查装置包括照明系统,其接收第一光束并产生来自第一光束的第二和第三光束;以及反射折射物镜,其引导第二光束从晶片反射。 第一传感器检测由反射的第二光束产生的第一图像。 折射物镜引导第三光束从晶片反射,第二传感器检测由反射的第三光束产生的第二图像。 第一张和第二张图像可用于CD测量。 第二光束可具有从约200nm至约425nm的光谱范围,并且第三光束可具有约425nm至约850nm的光谱范围。 可以提供第三传感器,其检测由从晶片反射的第三光束产生的第三图像。 第三个图像可用于OV测量。

    Optical integrators for lithography systems and methods
    10.
    发明授权
    Optical integrators for lithography systems and methods 有权
    用于光刻系统和方法的光学积分器

    公开(公告)号:US07630136B2

    公开(公告)日:2009-12-08

    申请号:US11488174

    申请日:2006-07-18

    IPC分类号: G02B27/14

    CPC分类号: G03F7/70075

    摘要: An optical integrator having a first surface and a second surface that is used in a lithographic apparatus to modify light. The first surface is reflective, defines a volume, and is configured to be disposed in an optical illumination system along an optical axis, to surround the optical axis, and to reflect a light along a path incident upon the first surface. The second surface is disposed in the volume and has a first section of the second surface that is semi-reflective and is configured to reflect a first portion of a light along a path incident upon the first section of the second surface and to transmit a second portion of the light along the path incident upon the first section of the second surface. The second surface increases the number of reflections of the light to increase the uniformity of the intensity distribution of the light.

    摘要翻译: 具有第一表面和第二表面的光学积分器,其用于光刻设备中以修改光。 第一表面是反射的,限定了一个体积,并被配置为沿光轴布置在光学照明系统中,以围绕光轴,并且沿着入射在第一表面上的路径反射光。 第二表面设置在体积中并且具有半反射的第二表面的第一部分,并且被配置为沿着入射在第二表面的第一部分上的路径反射光的第一部分,并且透射第二表面 沿着入射到第二表面的第一部分的路径的光的一部分。 第二表面增加了光的反射数以增加光的强度分布的均匀性。