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公开(公告)号:US20210026152A1
公开(公告)日:2021-01-28
申请号:US17036972
申请日:2020-09-29
Applicant: Samsung Electronics Co., Ltd.
Inventor: Sung-yoon Ryu , Yu-sin Yang , Chung-sam Jun , Hyun-su Kwak , Jung-won Kim
Abstract: Provided are a multilayer structure inspection apparatus and method of inspecting a multilayer structure in a sample without damaging the sample, the multilayer structure inspection apparatus being configured to measure both of reflectance and dispersion without damaging the sample, wherein the reflectance and dispersion are variables which are changed sensitively to a change in a repetitive pattern of the multilayer structure, by measuring values thereof, a structural change of the sample between before and after a process is inspected with high accuracy.
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公开(公告)号:US20160153915A1
公开(公告)日:2016-06-02
申请号:US14955635
申请日:2015-12-01
Applicant: Samsung Electronics Co., Ltd.
Inventor: Kang-woong Ko , Sung-yoon Ryu , Young-hoon Sohn , Gil-woo Song , Tae-heung Ahn , Hyoung-jo Jeon , Sang-kyeong Han , Masahiro Horie , Woo-seok Ko , Yu-sin Yang , Sang-kil Lee , Byeong-hwan Jeon
CPC classification number: G01N21/8806 , G01J4/00 , G01J2004/001 , G01N21/21 , G01N21/211 , G01N21/9501 , G01N21/956 , G01N2021/213 , G01N2021/8848
Abstract: A surface inspecting method includes: irradiating an incident light beam of a first polarized state on a target object, the incident light beam comprising parallel light and having a cross-sectional area: measuring a second polarized state of a reflected light beam reflected from the target object; and performing inspection on an entire area of the target object on which the incident light beam is irradiated, based on a variation between the first polarized state and the second polarized state.
Abstract translation: 表面检查方法包括:在目标物体上照射第一偏振态的入射光束,入射光束包括平行光并具有横截面积:测量从目标反射的反射光束的第二偏振状态 目的; 并且基于第一极化状态和第二极化状态之间的变化,对照射入射光的目标物体的整个区域进行检查。
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公开(公告)号:US20190137776A1
公开(公告)日:2019-05-09
申请号:US16135640
申请日:2018-09-19
Inventor: Sung-yoon Ryu , Yu-sin Yang , Chung-sam Jun , Hyun-su Kwak , Jung-won Kim
Abstract: Provided are a multilayer structure inspection apparatus and method of inspecting a multilayer structure in a sample without damaging the sample, the multilayer structure inspection apparatus being configured to measure both of reflectance and dispersion without damaging the sample, wherein the reflectance and dispersion are variables which are changed sensitively to a change in a repetitive pattern of the multilayer structure, by measuring values thereof, a structural change of the sample between before and after a process is inspected with high accuracy.
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公开(公告)号:US10249544B2
公开(公告)日:2019-04-02
申请号:US15654899
申请日:2017-07-20
Applicant: Samsung Electronics Co., Ltd.
Inventor: Sung-yoon Ryu , Chung-sam Jun , Yu-sin Yang , Yun-jung Jee , Gil-woo Song
Abstract: Provided are a method of inspecting a surface and a method of manufacturing a semiconductor device. The methods include preparing a substrate, selecting a spatial resolution of a first optical device by setting a magnification of an imaging optical system, emitting multi-wavelength light toward a first measurement area of the substrate and obtaining first wavelength-specific images, generating first spectrum data based on the first wavelength-specific images, generating first spectrum data of respective pixels based on the first wavelength-specific images, and extracting a spectrum of at least one first inspection area having a range of the first measurement area or less from the first spectrum data, and analyzing the spectrum. The first optical device includes a light source, an objective lens, a detector, and an imaging optical system. The obtaining first wavelength-specific images includes using the imaging optical system and the detector.
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公开(公告)号:US11494642B2
公开(公告)日:2022-11-08
申请号:US16678755
申请日:2019-11-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Su-il Cho , Sung-yoon Ryu , Yu-sin Yang , Chi-hoon Lee , Hyun-su Kwak , Jung-won Kim
IPC: G06N3/08 , C23C16/52 , H01L27/115 , H01L21/66
Abstract: A thickness prediction network learning method includes measuring spectrums of optical characteristics of a plurality of semiconductor structures each including a substrate and first and second semiconductor material layers alternately stacked thereon to generate sets of spectrum measurement data, measuring thicknesses of the first and second semiconductor material layers to generate sets of thickness data, training a simulation network using the sets of spectrum measurement data and the sets of thickness data, generating sets of spectrum simulation data of spectrums of the optical characteristics of a plurality of virtual semiconductor structures based on thicknesses of first and second virtual semiconductor material layers using the simulation network, each of the first and second virtual semiconductor layers including the same material as the first and second semiconductor material layers, respectively; and training a thickness prediction network by using the sets of spectrum measurement data and the sets of spectrum simulation data.
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公开(公告)号:US11043433B2
公开(公告)日:2021-06-22
申请号:US16803459
申请日:2020-02-27
Applicant: Samsung Electronics Co., Ltd.
Inventor: Sung-yoon Ryu , Chung-sam Jun , Yu-sin Yang , Yun-jung Jee , Gil-woo Song
Abstract: Provided are a method of inspecting a surface and a method of manufacturing a semiconductor device. The methods include preparing a substrate, selecting a spatial resolution of a first optical device by setting a magnification of an imaging optical system, emitting multi-wavelength light toward a first measurement area of the substrate and obtaining first wavelength-specific images, generating first spectrum data based on the first wavelength-specific images, generating first spectrum data of respective pixels based on the first wavelength-specific images, and extracting a spectrum of at least one first inspection area having a range of the first measurement area or less from the first spectrum data, and analyzing the spectrum. The first optical device includes a light source, an objective lens, a detector, and an imaging optical system. The obtaining first wavelength-specific images includes using the imaging optical system and the detector.
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公开(公告)号:US20190130552A1
公开(公告)日:2019-05-02
申请号:US15984774
申请日:2018-05-21
Applicant: Samsung Electronics Co., Ltd.
Inventor: Young-hoon Sohn , Sung-yoon Ryu , Yu-sin Yang
Abstract: A method of inspecting a defect including dividing a semiconductor substrate including the plurality of dies into a plurality of inspection regions, each of the plurality of inspection regions having at least one die, the semiconductor substrate including a pattern provided thereon, obtaining an optical image from each of the plurality of inspection regions, obtaining differential images between a reference region, and comparison regions, the reference region being one of the plurality of inspection regions, the comparison regions being regions other than the reference region from among the plurality of inspection regions, determining an abnormal pixel by performing a signal analysis with respect to respective signal intensities of same-location pixels in the differential images, and designating one or more possible weak patterns by comparing the abnormal pixel with a design pattern may be provided.
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公开(公告)号:US10001444B2
公开(公告)日:2018-06-19
申请号:US14955635
申请日:2015-12-01
Applicant: Samsung Electronics Co., Ltd.
Inventor: Kang-woong Ko , Sung-yoon Ryu , Young-hoon Sohn , Gil-woo Song , Tae-heung Ahn , Hyoung-jo Jeon , Sang-kyeong Han , Masahiro Horie , Woo-seok Ko , Yu-sin Yang , Sang-kil Lee , Byeong-hwan Jeon
IPC: G01N21/88 , G01J4/00 , G01N21/21 , G01N21/956 , G01N21/95
CPC classification number: G01N21/8806 , G01J4/00 , G01J2004/001 , G01N21/21 , G01N21/211 , G01N21/9501 , G01N21/956 , G01N2021/213 , G01N2021/8848
Abstract: A surface inspecting method includes: irradiating an incident light beam of a first polarized state on a target object, the incident light beam comprising parallel light and having a cross-sectional area: measuring a second polarized state of a reflected light beam reflected from the target object; and performing inspection on an entire area of the target object on which the incident light beam is irradiated, based on a variation between the first polarized state and the second polarized state.
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