CN107250766B - 具有经减小聚焦误差灵敏度的光学度量 - Google Patents

具有经减小聚焦误差灵敏度的光学度量 Download PDF

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CN107250766B
CN107250766B CN201680009293.7A CN201680009293A CN107250766B CN 107250766 B CN107250766 B CN 107250766B CN 201680009293 A CN201680009293 A CN 201680009293A CN 107250766 B CN107250766 B CN 107250766B
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detector
illumination
incidence
plane
sample
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CN107250766A (zh
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S·克里许南
G·V·庄
D·Y·王
刘学峰
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KLA Corp
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KLA Tencor Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G01N21/211—Ellipsometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2803—Investigating the spectrum using photoelectric array detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/9501—Semiconductor wafers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J2003/425—Reflectance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G01N21/211—Ellipsometry
    • G01N2021/213—Spectrometric ellipsometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06113—Coherent sources; lasers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/068—Optics, miscellaneous

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
CN201680009293.7A 2015-02-22 2016-02-10 具有经减小聚焦误差灵敏度的光学度量 Active CN107250766B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201562119243P 2015-02-22 2015-02-22
US62/119,243 2015-02-22
US14/833,370 2015-08-24
US14/833,370 US9970863B2 (en) 2015-02-22 2015-08-24 Optical metrology with reduced focus error sensitivity
PCT/US2016/017399 WO2016133765A1 (en) 2015-02-22 2016-02-10 Optical metrology with reduced focus error sensitivity

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CN107250766A CN107250766A (zh) 2017-10-13
CN107250766B true CN107250766B (zh) 2020-11-06

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US (1) US9970863B2 (enExample)
JP (1) JP6758309B2 (enExample)
KR (1) KR102296806B1 (enExample)
CN (1) CN107250766B (enExample)
DE (1) DE112016000853B4 (enExample)
IL (1) IL253670A0 (enExample)
SG (1) SG11201706232UA (enExample)
TW (1) TWI673487B (enExample)
WO (1) WO2016133765A1 (enExample)

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IL263106B2 (en) 2018-11-19 2023-02-01 Nova Ltd Integrated measurement system
US11060982B2 (en) * 2019-03-17 2021-07-13 Kla Corporation Multi-dimensional model of optical dispersion
WO2021005067A1 (en) 2019-07-08 2021-01-14 Asml Netherlands B.V. Metrology method and associated computer product
US11385167B2 (en) * 2019-10-01 2022-07-12 Onto Innovation Inc. Beamsplitter based ellipsometer focusing system
EP4065957A1 (de) * 2019-11-28 2022-10-05 EV Group E. Thallner GmbH Vorrichtung und verfahren zur vermessung eines substrats
CN115540766B (zh) * 2021-06-30 2025-08-05 深圳中科飞测科技股份有限公司 光学设备的聚焦方法及聚焦系统、设备和存储介质
CN114660048B (zh) * 2022-05-18 2022-08-19 合肥金星智控科技股份有限公司 预测数值校正方法、光谱设备、计算机设备和存储介质
CN115096208A (zh) * 2022-06-06 2022-09-23 上海精测半导体技术有限公司 一种宽光谱椭偏测量设备
US12449352B2 (en) * 2023-06-15 2025-10-21 Kla Corporation Optics for measurement of thick films and high aspect ratio structures
US20250076185A1 (en) * 2023-08-31 2025-03-06 Kla Corporation Angle Of Incidence And Azimuth Angle Resolved Spectroscopic Ellipsometry For Semiconductor Metrology
US20250110042A1 (en) * 2023-10-03 2025-04-03 Kla Corporation Spectroscopic Ellipsometry With Detector Resolved Numerical Aperture For Deep Structure Metrology

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US20030133102A1 (en) * 2002-01-16 2003-07-17 Jon Opsal Optical metrology tool having improved contrast
CN1662789A (zh) * 2002-06-18 2005-08-31 音质技术公司 对单一特征的光学度量
US20090279090A1 (en) * 2006-07-27 2009-11-12 Robert Gregory Wolf Multiple measurement techniques including focused beam scatterometry for characterization of samples
US20100296096A1 (en) * 2007-05-23 2010-11-25 Horvath Zoltan Gyoergy Imaging optical inspection device with a pinhole camera
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Also Published As

Publication number Publication date
KR20170118919A (ko) 2017-10-25
SG11201706232UA (en) 2017-09-28
US9970863B2 (en) 2018-05-15
DE112016000853T5 (de) 2017-11-09
DE112016000853B4 (de) 2024-10-24
KR102296806B1 (ko) 2021-08-31
TW201643405A (zh) 2016-12-16
CN107250766A (zh) 2017-10-13
IL253670A0 (en) 2017-09-28
TWI673487B (zh) 2019-10-01
US20160245741A1 (en) 2016-08-25
JP6758309B2 (ja) 2020-09-23
WO2016133765A1 (en) 2016-08-25
JP2018508995A (ja) 2018-03-29

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