公开(公告)号：US07829871B2

公开(公告)日：2010-11-09

申请号：US12177733

申请日：2008-07-22

Applicant: Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

Inventor： Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

IPC: H01J40/14 ,  G02B26/08

CPC classification number: G01N23/225 ,  H01J37/06 ,  H01J37/073 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: An electron beam apparatus such as a sheet beam based testing apparatus has an electron-optical system for irradiating an object under testing with a primary electron beam from an electron beam source, and projecting an image of a secondary electron beam emitted by the irradiation of the primary electron beam, and a detector for detecting the secondary electron beam image projected by the electron-optical system; specifically, the electron beam apparatus comprises beam generating means 2004 for irradiating an electron beam having a particular width, a primary electron-optical system 2001 for leading the beam to reach the surface of a substrate 2006 under testing, a secondary electron-optical system 2002 for trapping secondary electrons generated from the substrate 2006 and introducing them into an image processing system 2015, a stage 2003 for transportably holding the substrate 2006 with a continuous degree of freedom equal to at least one, a testing chamber for the substrate 2006, a substrate transport mechanism for transporting the substrate 2006 into and out of the testing chamber, an image processing analyzer 2015 for detecting defects on the substrate 2006, a vibration isolating mechanism for the testing chamber, a vacuum system for holding the testing chamber at a vacuum, and a control system 2017 for displaying or storing positions of defects on the substrate 2006.

Abstract translation: 诸如基于片材束的测试装置的电子束装置具有电子光学系统，用于用来自电子束源的一次电子束照射待测物体，并且投射通过照射的二次电子束的图像 一次电子束和用于检测由电子 - 光学系统投影的二次电子束图像的检测器; 具体地，电子束装置包括用于照射具有特定宽度的电子束的光束产生装置2004，用于引导光束到达正在测试的基底2006的表面的初级电子 - 光学系统2001，二次电子光学系统2002 用于捕获从衬底2006产生的二次电子并将它们引入到图像处理系统2015中，用于以等于至少一个的连续自由度可移动地保持衬底2006的阶段2003，用于衬底2006的测试室，衬底 用于将基板2006输送到测试室中的传送机构，用于检测基板2006上的缺陷的图像处理分析器2015，用于测试室的隔振机构，用于将测试室保持在真空的真空系统，以及 用于在基板2006上显示或存储缺陷位置的控制系统2017。

公开(公告)号：US20090101816A1

公开(公告)日：2009-04-23

申请号：US12073892

申请日：2008-03-11

Applicant: Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

Inventor： Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

IPC: G01N23/00 ,  A61N5/00

CPC classification number: H01J37/20 ,  G01N23/2204 ,  G01N23/225 ,  H01J37/05 ,  H01J37/28 ,  H01J2237/202 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2801 ,  H01J2237/2817 ,  H01L21/6833 ,  H01L2223/54466

Abstract: A system for further enhancing speed, i.e. improving throughput in a SEM-type inspection apparatus is provided. An inspection apparatus for inspecting a surface of a substrate produces a crossover from electrons emitted from an electron beam source 25•1, then forms an image under a desired magnification in the direction of a sample W to produce a crossover. When the crossover is passed, electrons as noises are removed from the crossover with an aperture, an adjustment is made so that the crossover becomes a parallel electron beam to irradiate the substrate in a desired sectional form. The electron beam is produced such that the unevenness of illuminance is 10% or less. Electrons emitted from the sample W are detected by a detector 25•11.

Abstract translation: 提供了一种用于进一步提高速度的系统，即提高SEM型检查装置中的生产量。 用于检查基板的表面的检查装置产生从电子束源25.1发射的电子的交叉，然后在样品W的方向上以期望的倍率形成图像以产生交叉。 当交叉通过时，作为噪声的电子从具有孔的交叉点移除，进行调整，使得交叉成为平行电子束以以期望的分段形式照射基板。 产生电子束，使照度不均匀为10％以下。 由检测器25.11检测从样品W发射的电子。

公开(公告)号：US07423267B2

公开(公告)日：2008-09-09

申请号：US11528673

申请日：2006-09-28

Applicant: Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Kenji Watanabe ,  Takao Kato ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima

Inventor： Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Kenji Watanabe ,  Takao Kato ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima

IPC: G01N23/00

CPC classification number: B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J37/06 ,  H01J37/063 ,  H01J37/073 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J37/3174 ,  H01J2237/0435 ,  H01J2237/0635 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/2446 ,  H01J2237/24485 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: The present invention provides an electron beam apparatus for irradiating a sample with primary electron beams to detect secondary electron beams generated from a surface of the sample by the irradiation for evaluating the sample surface. In the electron beam apparatus, an electron gun has a cathode for emitting primary electron beams. The cathode includes a plurality of emitters for emitting primary electron beams, arranged apart from one another on a circle centered at an optical axis of a primary electro-optical system. The plurality of emitters are arranged such that when the plurality of emitters are projected onto a straight line parallel with a direction in which the primary electron beams are scanned, resulting points on the straight line are spaced at equal intervals.

Abstract translation: 本发明提供了一种用于用一次电子束照射样品的电子束装置，以通过用于评估样品表面的照射来检测从样品表面产生的二次电子束。 在电子束装置中，电子枪具有用于发射一次电子束的阴极。 阴极包括用于发射一次电子束的多个发射器，其以在主电光系统的光轴为中心的圆周彼此分开布置。 多个发射器被布置成使得当多个发射器投射到与一次电子束扫描的方向平行的直线上时，直线上的所得点以相等的间隔隔开。

公开(公告)号：US07417236B2

公开(公告)日：2008-08-26

申请号：US11360704

申请日：2006-02-24

Applicant: Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

Inventor： Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

IPC: H01J37/20

CPC classification number: G01N23/225 ,  H01J37/06 ,  H01J37/073 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: An electron beam apparatus such as a sheet beam based testing apparatus has an electron-optical system for irradiating an object under testing with a primary electron beam from an electron beam source, and projecting an image of a secondary electron beam emitted by the irradiation of the primary electron beam, and a detector for detecting the secondary electron beam image projected by the electron-optical system; specifically, the electron beam apparatus comprises beam generating means 2004 for irradiating an electron beam having a particular width, a primary electron-optical system 2001 for leading the beam to reach the surface of a substrate 2006 under testing, a secondary electron-optical system 2002 for trapping secondary electrons generated from the substrate 2006 and introducing them into an image processing system 2015, a stage 2003 for transportably holding the substrate 2006 with a continuous degree of freedom equal to at least one, a testing chamber for the substrate 2006, a substrate transport mechanism for transporting the substrate 2006 into and out of the testing chamber, an image processing analyzer 2015 for detecting defects on the substrate 2006, a vibration isolating mechanism for the testing chamber, a vacuum system for holding the testing chamber at a vacuum, and a control system 2017 for displaying or storing positions of defects on the substrate 2006.

Abstract translation: 诸如基于片材束的测试装置的电子束装置具有电子光学系统，用于用来自电子束源的一次电子束照射待测物体，并且投射通过照射的二次电子束的图像 一次电子束和用于检测由电子 - 光学系统投影的二次电子束图像的检测器; 具体地，电子束装置包括用于照射具有特定宽度的电子束的光束产生装置2004，用于引导光束到达正在测试的基底2006的表面的初级电子 - 光学系统2001，二次电子光学系统2002 用于捕获从衬底2006产生的二次电子并将它们引入到图像处理系统2015中，用于以等于至少一个的连续自由度可移动地保持衬底2006的阶段2003，用于衬底2006的测试室，衬底 用于将基板2006输送到测试室中的传送机构，用于检测基板2006上的缺陷的图像处理分析器2015，用于测试室的隔振机构，用于将测试室保持在真空的真空系统，以及 用于在基板2006上显示或存储缺陷位置的控制系统2017。

公开(公告)号：US20080173815A1

公开(公告)日：2008-07-24

申请号：US12068589

申请日：2008-02-08

Applicant: Mamoru Nakasuji ,  Tohru Satake ,  Nobuharu Noji ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima ,  Yoshiaki Kohama ,  Yukiharu Okubo

Inventor： Mamoru Nakasuji ,  Tohru Satake ,  Nobuharu Noji ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima ,  Yoshiaki Kohama ,  Yukiharu Okubo

IPC: G01N23/00

CPC classification number: H01J37/20 ,  G01N23/225 ,  G01N23/2251 ,  H01J37/06 ,  H01J37/073 ,  H01J37/185 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: The purpose of the invention is to provide an improved electron beam apparatus with improvements in throughput, accuracy, etc. One of the characterizing features of the electron beam apparatus of the present invention is that it has a plurality of optical systems, each of which comprises a primary electron optical system for scanning and irradiating a sample with a plurality of primary electron beams; a detector device for detecting a plurality of secondary beams emitted by irradiating the sample with the primary electron beams; and a secondary electron optical system for guiding the secondary electron beams from the sample to the detector device; all configured so that the plurality of optical systems scan different regions of the sample with their primary electron beams, and detect the respective secondary electron beams emitted from each of the respective regions. This is what makes higher throughput possible. To provide high accuracy, the apparatus is configured such that the axes of its optical systems can be aligned, and aberrations corrected, by a variety of methods.

公开(公告)号：US07241993B2

公开(公告)日：2007-07-10

申请号：US09891511

申请日：2001-06-27

Applicant: Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Shin Oowada ,  Mutsumi Saito ,  Yuichiro Yamazaki ,  Takamitsu Nagai ,  Ichirota Nagahama

Inventor： Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Shin Oowada ,  Mutsumi Saito ,  Yuichiro Yamazaki ,  Takamitsu Nagai ,  Ichirota Nagahama

IPC: H01J37/28

CPC classification number: H01J29/70 ,  G01N23/225 ,  G01N23/2251 ,  G01N23/227 ,  H01J37/06 ,  H01J37/073 ,  H01J37/141 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/266 ,  H01J37/28 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817 ,  H01L21/6719 ,  H01L21/67213

Abstract: An inspection apparatus by an electron beam comprises: an electron-optical device 70 having an electron-optical system for irradiating the object with a primary electron beam from an electron beam source, and a detector for detecting the secondary electron image projected by the electron-optical system; a stage system 50 for holding and moving the object relative to the electron-optical system; a mini-environment chamber 20 for supplying a clean gas to the object to prevent dust from contacting to the object; a working chamber 31 for accommodating the stage device, the working chamber being controllable so as to have a vacuum atmosphere; at least two loading chambers 41, 42 disposed between the mini-environment chamber and the working chamber, adapted to be independently controllable so as to have a vacuum atmosphere; and a loader 60 for transferring the object to the stage system through the loading chambers.

Abstract translation: 电子束检查装置包括：电子光学装置70，具有用于从电子束源向一个电子束照射物体的电子 - 光学系统;以及用于检测由电子束投射的二次电子图像的检测器， 光学系统; 用于相对于电子 - 光学系统保持和移动物体的平台系统50; 微型环境室20，用于向物体供应清洁气体，以防止灰尘与物体接触; 用于容纳平台装置的工作室31，工作室可控制为具有真空气氛; 设置在微环境室和工作室之间的至少两个装载室41,42适于独立控制以具有真空气氛; 以及用于通过装载室将物体传送到舞台系统的装载器60。

公开(公告)号：US07205540B2

公开(公告)日：2007-04-17

申请号：US11262844

申请日：2005-11-01

Applicant: Mamoru Nakasuji ,  Takao Kato ,  Kenji Watanabe ,  Shoji Yoshikawa ,  Tohru Satake ,  Nobuharu Noji

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Kenji Watanabe ,  Shoji Yoshikawa ,  Tohru Satake ,  Nobuharu Noji

IPC: G21K7/00 ,  H01J37/28 ,  H01L21/66 ,  G01N23/00

CPC classification number: B82Y10/00 ,  G01N23/225 ,  G01R31/307 ,  H01J37/242 ,  H01J37/265 ,  H01J37/28 ,  H01J2237/221 ,  H01J2237/24507 ,  H01J2237/2817

Abstract: An electron beam apparatus is provided for reliably measuring a potential contrast and the like at a high throughput in a simple structure. The electron beam apparatus for irradiating a sample, such as a wafer, formed with a pattern with an electron beam to evaluate the sample comprises an electron-optical column for accommodating an electron beam source, an objective lens, an E×B separator, and a secondary electron beam detector; a stage for holding the sample, and relatively moving the sample with respect to the electron-optical column; a working chamber for accommodating the stage and capable of controlling the interior thereof in a vacuum atmosphere; a loader for supplying a sample to the stage; a voltage applying mechanism for applying a voltage to the sample, and capable of applying at least two voltages to a lower electrode of the objective lens; and an alignment mechanism for measuring a direction in which dies are arranged on the sample. When the sample is evaluated, a direction in which the stage is moved is corrected to align with the direction in which the dies are arranged.

Abstract translation: 提供电子束装置，用于以简单的结构以高通量可靠地测量电位对比度等。 用于照射形成有电子束图案的晶片的样品（如晶片）以评估样品的电子束装置包括用于容纳电子束源的电子 - 光学柱，物镜，ExB分离器和次级 电子束检测器 用于保持样品的阶段，并相对于电子 - 光学柱相对移动样品; 用于容纳舞台并能够在真空气氛中控制其内部的工作室; 用于将样品供应到载物台的装载机; 电压施加机构，用于向样品施加电压，并且能够向物镜的下电极施加至少两个电压; 以及用于测量模具布置在样品上的方向的对准机构。 当评估样品时，对载物台移动的方向进行校正，使其与模具的排列方向一致。

公开(公告)号：US20070018101A1

公开(公告)日：2007-01-25

申请号：US11528673

申请日：2006-09-28

Applicant: Mamoru Nakasuji ,  Nobuhara Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Kenji Watanabe ,  Takao Kato ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima

Inventor： Mamoru Nakasuji ,  Nobuhara Noji ,  Tohru Satake ,  Masahiro Hatakeyama ,  Kenji Watanabe ,  Takao Kato ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shoji Yoshikawa ,  Toshifumi Kimba ,  Shin Oowada ,  Mutsumi Saito ,  Muneki Hamashima

IPC: G21K7/00

CPC classification number: B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J37/06 ,  H01J37/063 ,  H01J37/073 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J37/3174 ,  H01J2237/0435 ,  H01J2237/0635 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/2446 ,  H01J2237/24485 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: The present invention provides an electron beam apparatus for irradiating a sample with primary electron beams to detect secondary electron beams generated from a surface of the sample by the irradiation for evaluating the sample surface. In the electron beam apparatus, an electron gun has a cathode for emitting primary electron beams. The cathode includes a plurality of emitters for emitting primary electron beams, arranged apart from one another on a circle centered at an optical axis of a primary electro-optical system. The plurality of emitters are arranged such that when the plurality of emitters are projected onto a straight line parallel with a direction in which the primary electron beams are scanned, resulting points on the straight line are spaced at equal intervals.

Abstract translation: 本发明提供了一种用于用一次电子束照射样品的电子束装置，以通过用于评估样品表面的照射来检测从样品表面产生的二次电子束。 在电子束装置中，电子枪具有用于发射一次电子束的阴极。 阴极包括用于发射一次电子束的多个发射器，其以在主电光系统的光轴为中心的圆周彼此分开布置。 多个发射器被布置成使得当多个发射器投射到与一次电子束扫描的方向平行的直线上时，直线上的所得点以相等的间隔隔开。

公开(公告)号：US07109484B2

公开(公告)日：2006-09-19

申请号：US10989368

申请日：2004-11-17

Applicant: Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

Inventor： Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake ,  Toshifumi Kimba ,  Hirosi Sobukawa ,  Tsutomu Karimata ,  Shin Oowada ,  Shoji Yoshikawa ,  Mutsumi Saito

IPC: H01J37/28 ,  G01N23/22

CPC classification number: G01N23/225 ,  H01J37/06 ,  H01J37/073 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/244 ,  H01J37/28 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/24564 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: An electron beam apparatus such as a sheet beam based testing apparatus has an electron-optical system for irradiating an object under testing with a primary electron beam from an electron beam source, and projecting an image of a secondary electron beam emitted by the irradiation of the primary electron beam, and a detector for detecting the secondary electron beam image projected by the electron-optical system. Specifically, the electron beam apparatus comprises beam generating means 2004 for irradiating an electron beam having a particular width, a primary electron-optical system 2001 for leading the beam to reach the surface of a substrate 2006 under testing, a secondary electron-optical system 2002 for trapping secondary electrons generated from the substrate 2006 and introducing them into an image processing system 2015, a stage 2003 for transportably holding the substrate 2006 with a continuous degree of freedom equal to at least one, a testing chamber for the substrate 2006, a substrate transport mechanism for transporting the substrate 2006 into and out of the testing chamber, an image processing analyzer 2015 for detecting defects on the substrate 2006, a vibration isolating mechanism for the testing chamber, a vacuum system for holding the testing chamber at a vacuum, and a control system 2017 for displaying or storing positions of defects on the substrate 2006.

Abstract translation: 诸如基于片材束的测试装置的电子束装置具有电子光学系统，用于用来自电子束源的一次电子束照射待测物体，并且投射通过照射的二次电子束的图像 一次电子束和用于检测由电子 - 光学系统投影的二次电子束图像的检测器。 具体地，电子束装置包括用于照射具有特定宽度的电子束的光束产生装置2004，用于引导光束到达待测基板2006的表面的初级电子 - 光学系统2001，二次电子光学系统2002 用于捕获从衬底2006产生的二次电子并将它们引入到图像处理系统2015中，用于以等于至少一个的连续自由度可移动地保持衬底2006的阶段2003，用于衬底2006的测试室，衬底 用于将基板2006输送到测试室中的传送机构，用于检测基板2006上的缺陷的图像处理分析器2015，用于测试室的隔振机构，用于将测试室保持在真空的真空系统，以及 用于在基板2006上显示或存储缺陷位置的控制系统2017。

公开(公告)号：US20060118719A1

公开(公告)日：2006-06-08

申请号：US11290688

申请日：2005-12-01

Applicant: Kenji Watanabe ,  Hirosi Sobukawa ,  Nobuharu Noji ,  Tohru Satake ,  Shoji Yoshikawa ,  Tsutomu Karimata ,  Mamoru Nakasuji ,  Masahiro Hatakeyama ,  Takeshi Murakami ,  Yuichiro Yamazaki ,  Ichirota Nagahama ,  Takamitsu Nagai ,  Kazuyoshi Sugihara

Inventor： Kenji Watanabe ,  Hirosi Sobukawa ,  Nobuharu Noji ,  Tohru Satake ,  Shoji Yoshikawa ,  Tsutomu Karimata ,  Mamoru Nakasuji ,  Masahiro Hatakeyama ,  Takeshi Murakami ,  Yuichiro Yamazaki ,  Ichirota Nagahama ,  Takamitsu Nagai ,  Kazuyoshi Sugihara

IPC: G21K7/00

CPC classification number: H01J37/28 ,  H01J37/224 ,  H01J37/244 ,  H01J2237/006 ,  H01J2237/20221 ,  H01J2237/2445 ,  H01J2237/2817

Abstract: An electron beam inspection system of the image projection type includes a primary electron optical system for shaping an electron beam emitted from an electron gun into a rectangular configuration and applying the shaped electron beam to a sample surface to be inspected. A secondary electron optical system converges secondary electrons emitted from the sample. A detector converts the converged secondary electrons into an optical image through a fluorescent screen and focuses the image to a line sensor. A controller controls the charge transfer time of the line sensor at which the picked-up line image is transferred between each pair of adjacent pixel rows provided in the line sensor in association with the moving speed of a stage for moving the sample.