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公开(公告)号：US09080971B2
公开(公告)日：2015-07-14
申请号：US14516540
申请日：2014-10-16
Applicant: KLA-Tencor Corporation
Inventor： Daniel Kandel , Vladimir Levinski , Alexander Svizher , Joel Seligson , Andrew Hill , Ohad Bachar , Amnon Manassen , Yung-Ho Alex Chuang , Ilan Sela , Moshe Markowitz , Daria Negri , Efraim Rotem
CPC classification number: G01N21/47 , G01B11/02 , G01B11/0641 , G01B2210/56 , G01N21/211 , G01N21/9501 , G01N21/956 , G01N2021/4792 , G01N2201/06113 , G01N2201/105 , G03F7/70625 , G03F7/70633
Abstract: Various metrology systems and methods are provided. One metrology system includes a light source configured to produce a diffraction-limited light beam, an apodizer configured to shape the light beam in the entrance pupil of illumination optics, and optical elements configured to direct the diffraction-limited light beam from the apodizer to an illumination spot on a grating target on a wafer and to collect scattered light from the grating target. The metrology system further includes a field stop and a detector configured to detect the scattered light that passes through the field stop. In addition, the metrology system includes a computer system configured to determine a characteristic of the grating target using output of the detector.
Abstract translation: 提供了各种计量系统和方法。 一个计量系统包括被配置为产生衍射受限光束的光源，被配置为使照明光学器件的入射光瞳中的光束成形的变迹器，以及被配置为将来自变迹器的衍射受限光束引导到 在晶片上的光栅目标上的照明点并且收集来自光栅目标的散射光。 测量系统还包括场停止器和检测器，其被配置为检测通过场停止器的散射光。 此外，计量系统包括被配置为使用检测器的输出来确定光栅目标的特性的计算机系统。
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公开(公告)号：US10261014B2
公开(公告)日：2019-04-16
申请号：US14583447
申请日：2014-12-26
Applicant: KLA-Tencor Corporation
Inventor： Noam Sapiens , Joel Seligson , Vladimir Levinski , Daniel Kandel , Yoel Feler , Barak Bringoltz , Amnon Manassen , Eliav Benisty
Abstract: Metrology systems and methods are provided herein, which comprise an optical element that is positioned between an objective lens of the system and a target. The optical element is arranged to enhance evanescent modes of radiation reflected by the target. Various configurations are disclosed: the optical element may comprise a solid immersion lens, a combination of Moiré-elements and solid immersion optics, dielectric-metal-dielectric stacks of different designs, and resonating elements to amplify the evanescent modes of illuminating radiation. The metrology systems and methods are configurable to various metrology types, including imaging and scatterometry methods.
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公开(公告)号：US09442369B1
公开(公告)日：2016-09-13
申请号：US13949332
申请日：2013-07-24
Applicant: KLA-Tencor Corporation
Inventor： Dmitry Shur , Joel Seligson
CPC classification number: G03F1/68
Abstract: An electro-deposition apparatus deposits a first pattern of a lithographic mask. The electro-deposition apparatus then deposits a second pattern of the lithographic mask, at least partially offset from the first pattern. The resulting lithographic mask includes a first pattern having a minimum feature resolution size and maximum pitch, and a second pattern having the same minimum feature resolution size and maximum pitch. The first pattern and second pattern are at least partially offset such that a fractional portion of the second pattern is realized and light transmission is more precisely controlled.
Abstract translation: 电沉积装置沉积光刻掩模的第一图案。 然后，电沉积装置沉积至少部分地偏离第一图案的光刻掩模的第二图案。 所得到的光刻掩模包括具有最小特征分辨率尺寸和最大间距的第一图案，以及具有相同的最小特征分辨率尺寸和最大间距的第二图案。 第一图案和第二图案至少部分地偏移，使得实现第二图案的分数部分，并且更精确地控制光透射。
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公开(公告)号：US20150198524A1
公开(公告)日：2015-07-16
申请号：US14583447
申请日：2014-12-26
Applicant: KLA-Tencor Corporation
Inventor： Noam Sapiens , Joel Seligson , Vladimir Levinski , Daniel Kandel , Yoel Feler , Barak Bringoltz , Amnon Manassen , Eliav Benisty
IPC: G01N21/47
CPC classification number: G01N21/4788 , G01N2201/06113 , G02B27/56 , G02B27/58
Abstract: Metrology systems and methods are provided herein, which comprise an optical element that is positioned between an objective lens of the system and a target. The optical element is arranged to enhance evanescent modes of radiation reflected by the target. Various configurations are disclosed: the optical element may comprise a solid immersion lens, a combination of Moiré-elements and solid immersion optics, dielectric-metal-dielectric stacks of different designs, and resonating elements to amplify the evanescent modes of illuminating radiation. The metrology systems and methods are configurable to various metrology types, including imaging and scatterometry methods.
Abstract translation: 本文提供的计量系统和方法包括位于系统的物镜和目标之间的光学元件。 光学元件布置成增强目标反射的辐射消散模式。 公开了各种配置：光学元件可以包括固体浸没透镜，莫尔元件和固体浸没光学元件的组合，不同设计的介电金属 - 电介质叠层以及用于放大照明辐射的渐逝模式的谐振元件。 计量系统和方法可配置为各种计量类型，包括成像和散射方法。
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公开(公告)号：US08873054B2
公开(公告)日：2014-10-28
申请号：US13865104
申请日：2013-04-17
Applicant: KLA-Tencor Corporation
Inventor： Daniel Kandel , Vladimir Levinski , Alexander Svizher , Joel Seligson , Andrew Hill , Ohad Bachar , Amnon Manassen , Yung-Ho Alex Chuang , Ilan Sela , Moshe Markowitz , Daria Negri , Efraim Rotem
IPC: G01J4/00 , G01B11/14 , G01B11/04 , G01B11/00 , G01N21/47 , G01B11/02 , G03F7/20 , G01B11/06 , G01N21/21 , G01N21/956
CPC classification number: G01N21/47 , G01B11/02 , G01B11/0641 , G01B2210/56 , G01N21/211 , G01N21/9501 , G01N21/956 , G01N2021/4792 , G01N2201/06113 , G01N2201/105 , G03F7/70625 , G03F7/70633
Abstract: Various metrology systems and methods are provided. One metrology system includes a light source configured to produce a diffraction-limited light beam, an apodizer configured to shape the light beam in the entrance pupil of illumination optics, and optical elements configured to direct the diffraction-limited light beam from the apodizer to an illumination spot on a grating target on a wafer and to collect scattered light from the grating target. The metrology system further includes a field stop and a detector configured to detect the scattered light that passes through the field stop. In addition, the metrology system includes a computer system configured to determine a characteristic of the grating target using output of the detector.
Abstract translation: 提供了各种计量系统和方法。 一个计量系统包括被配置为产生衍射受限光束的光源，被配置为使照明光学器件的入射光瞳中的光束成形的变迹器，以及被配置为将来自变迹器的衍射受限光束引导到 在晶片上的光栅目标上的照明点并且收集来自光栅目标的散射光。 测量系统还包括场停止器和检测器，其被配置为检测通过场停止器的散射光。 此外，计量系统包括被配置为使用检测器的输出来确定光栅目标的特性的计算机系统。
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Patent Agency Ranking
公开(公告)号：US10274425B2
公开(公告)日：2019-04-30
申请号：US15589801
申请日：2017-05-08
Applicant: KLA-Tencor Corporation
Inventor： Joel Seligson , Noam Sapiens , Daniel Kandel
Abstract: Contrast enhancement in a metrology tool may include generating a beam of illumination, directing a portion of the generated beam onto a surface of a spatial light modulator (SLM), directing at least a portion of the generated beam incident on the surface of the SLM through an aperture of an aperture stop and onto one or more target structures of one or more samples, and generating a selected illumination pupil function of the illumination transmitted through the aperture utilizing the SLM in order to establish a contrast level of one or more field images of the one or more target structures above a selected contrast threshold, and performing one or more metrology measurements on the one or more target structures utilizing the selected illumination pupil function.
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公开(公告)号：US10139528B1
公开(公告)日：2018-11-27
申请号：US15408351
申请日：2017-01-17
Applicant: KLA-Tencor Corporation
Inventor： Joel Seligson , Vladimir Levinski , Yuri Paskover , Amnon Manassen , Daniel Kandel , Andrew V. Hill
Abstract: Objective lenses and corresponding optical systems and metrology tools, as well as methods are provided. Objective lenses comprise a central region conforming to specified imaging requirements and a peripheral region conforming to specified scatterometry requirements. The optical systems may comprise common-path optical elements configured to handle both imaging and scatterometry signals received through the objective lens. Using a single objective lens simplifies the design of the optical system while maintaining, simultaneously, the performance requirements for imaging as well as for scatterometry.
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公开(公告)号：US20160003735A1
公开(公告)日：2016-01-07
申请号：US14794294
申请日：2015-07-08
Applicant: KLA-Tencor Corporation
Inventor： Joel Seligson , Noam Sapiens , Daniel Kandel
IPC: G01N21/47
CPC classification number: G01N21/47 , G01B11/02 , G01N21/00 , G03F7/70633
Abstract: Contrast enhancement in a metrology tool may include generating a beam of illumination, directing a portion of the generated beam onto a surface of a spatial light modulator (SLM), directing at least a portion of the generated beam incident on the surface of the SLM through an aperture of an aperture stop and onto one or more target structures of one or more samples, and generating a selected illumination pupil function of the illumination transmitted through the aperture utilizing the SLM in order to establish a contrast level of one or more field images of the one or more target structures above a selected contrast threshold, and performing one or more metrology measurements on the one or more target structures utilizing the selected illumination pupil function.
Abstract translation: 计量工具中的对比度增强可以包括产生照射光束，将所产生的光束的一部分引导到空间光调制器（SLM）的表面上，引导入射到SLM的表面上的所产生的光束的至少一部分通过 孔径的孔径停止并且连接到一个或多个样本的一个或多个目标结构上，并且利用SLM生成通过孔径透射的照明的选择的照明光瞳函数，以便建立一个或多个场图像的对比度 所述一个或多个目标结构在所选择的对比度阈值之上，以及利用所选择的照明光瞳功能对所述一个或多个目标结构执行一个或多个度量测量。
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公开(公告)号：US20130229661A1
公开(公告)日：2013-09-05
申请号：US13865104
申请日：2013-04-17
Applicant: KLA-TENCOR CORPORATION
Inventor： Daniel Kandel , Vladimir Levinski , Alexander Svizher , Joel Seligson , Andrew Hill , Ohad Bachar , Amnon Manassen , Yung-Ho Alex Chuang , Ilan Sela , Moshe Markowitz , Daria Negri , Efraim Rotem
IPC: G01N21/47
CPC classification number: G01N21/47 , G01B11/02 , G01B11/0641 , G01B2210/56 , G01N21/211 , G01N21/9501 , G01N21/956 , G01N2021/4792 , G01N2201/06113 , G01N2201/105 , G03F7/70625 , G03F7/70633
Abstract: Various metrology systems and methods are provided. One metrology system includes a light source configured to produce a diffraction-limited light beam, an apodizer configured to shape the light beam in the entrance pupil of illumination optics, and optical elements configured to direct the diffraction-limited light beam from the apodizer to an illumination spot on a grating target on a wafer and to collect scattered light from the grating target. The metrology system further includes a field stop and a detector configured to detect the scattered light that passes through the field stop. In addition, the metrology system includes a computer system configured to determine a characteristic of the grating target using output of the detector.
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公开(公告)号：US20170307523A1
公开(公告)日：2017-10-26
申请号：US15589801
申请日：2017-05-08
Applicant: KLA-Tencor Corporation
Inventor： Joel Seligson , Noam Sapiens , Daniel Kandel
CPC classification number: G01N21/47 , G01B11/02 , G01N21/00 , G03F7/70633
Abstract: Contrast enhancement in a metrology tool may include generating a beam of illumination, directing a portion of the generated beam onto a surface of a spatial light modulator (SLM), directing at least a portion of the generated beam incident on the surface of the SLM through an aperture of an aperture stop and onto one or more target structures of one or more samples, and generating a selected illumination pupil function of the illumination transmitted through the aperture utilizing the SLM in order to establish a contrast level of one or more field images of the one or more target structures above a selected contrast threshold, and performing one or more metrology measurements on the one or more target structures utilizing the selected illumination pupil function.
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