公开(公告)号：US07888642B2

公开(公告)日：2011-02-15

申请号：US12188567

申请日：2008-08-08

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

IPC: H01J49/48 ,  G21K5/04

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：US07598471B2

公开(公告)日：2009-10-06

申请号：US11714885

申请日：2007-03-07

Applicant: Muneki Hamashima ,  Takao Kato ,  Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake

Inventor： Muneki Hamashima ,  Takao Kato ,  Mamoru Nakasuji ,  Nobuharu Noji ,  Tohru Satake

IPC: B23H9/00 ,  B23H1/04

CPC classification number: F01N3/2828 ,  F01N2260/18 ,  F01N2330/06 ,  H01J37/06 ,  H01J37/28

Abstract: A method of machining a cathode used in an electron gun. The method includes steps of placing an object to be machined, which is a material of the cathode, and a machining electrode in an electrically insulating oil; applying a discharge current to the machining electrode; and machining the object to be machined to have a shape corresponding to the shape of the machining electrode by means of electric discharge machining of the machining electrode. The machining electrode includes a disk, recesses formed on a front surface of the disk, a protrusion provided on a back surface of the disk, and a hole for mounting a lead wire for applying discharge current to the machining electrode. Bumps corresponding to the shape of the recesses of the machining electrode are formed on the object to be machined by means of the electric discharge machining.

Abstract translation: 一种加工电子枪阴极的方法。 该方法包括以下步骤：将作为阴极材料的待加工对象和电绝缘油中的加工电极放置; 向加工电极施加放电电流; 并且通过加工电极的放电加工将被加工物加工成具有与加工电极的形状对应的形状。 加工电极包括盘，形成在盘的前表面上的凹部，设置在盘的后表面上的突起，以及用于安装用于向加工电极施加放电电流的引线的孔。 通过放电加工在被加工物体上形成与加工电极的凹部的形状相对应的凸起。

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：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：USRE40221E1

公开(公告)日：2008-04-08

申请号：US10986576

申请日：2004-11-12

Applicant: Muneki Hamashima ,  Yoichi Watanabe ,  Yoshiaki Kohama

Inventor： Muneki Hamashima ,  Yoichi Watanabe ,  Yoshiaki Kohama

IPC: H01J37/28

CPC classification number: H01J37/265 ,  G01N23/225 ,  H01J37/244 ,  H01J37/28 ,  H01J37/292 ,  H01J2237/2446 ,  H01J2237/2817

Abstract: This invention relates to an object observation apparatus and observation method. The object observation apparatus is characterized by including a drivable stage on which a sample is placed, an irradiation optical system which is arranged to face the sample on the stage, and emits an electron beam as a secondary beam, an electron detection device which is arranged to face the sample, causes to project, as a primary beam, at least one of a secondary electron, reflected electron, and back-scattering electron generated by the sample upon irradiation of the electron beam, and generates image information of the sample, a stage driving device which is adjacent to the stage to drive the stage, and a deflector arranged between the sample and the electron detection device to deflect the secondary beam, the electron detection device having a converter arranged on a detection surface to convert the secondary beam into light, an array image sensing unit which is adjacent to the converter, has pixels of a plurality of lines each including a plurality of pixels on the detection surface, sequentially transfers charges of pixels of each line generated upon reception of light of an optical image obtained via the converter to corresponding pixels of an adjacent line at a predetermined timing, adds, every transfer, charges generated upon reception of light after the transfer at the pixels which received the charges, and sequentially outputs charges added up to a line corresponding to an end, and a control unit connected to the array image sensing unit to output a transfer signal for sequentially transferring charges of pixels of each line to an adjacent line, and the control unit having a stage scanning mode in which the array image sensing unit is controlled in accordance with a variation in projection position of the secondary beam projected on the electron detection device that is generated by movement of the stage device, and a deflector operation mode in which the array image sensing unit is controlled in accordance with a variation in projection position of the secondary beam projected on the detection device by the deflector.

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：US06953944B2

公开(公告)日：2005-10-11

申请号：US10705497

申请日：2003-11-12

Applicant: Yoshiaki Kohama ,  Akihiro Goto ,  Muneki Hamashima ,  Yukiharu Okubo

Inventor： Yoshiaki Kohama ,  Akihiro Goto ,  Muneki Hamashima ,  Yukiharu Okubo

IPC: G01Q30/20 ,  H01J37/28 ,  G01N21/86

CPC classification number: H01J37/28 ,  H01J2237/2817

Abstract: A scanning device and method includes a movable stage on which a specimen is positioned, an irradiating device for electron beam irradiation of the specimen, a detection device for generating a picture of the irradiation region by detecting a secondary beam including secondary or reflected electrons from the irradiation region, and imaging electron optical system for imaging the secondary beam on a detection surface. A secondary beam detector including a fluorescent unit arranged on the detection surface to convert the secondary beam into light, one-dimensional line sensors for forming electric charge by photoelectric conversion, an array imaging element for accumulating the electric charge in a predetermined line of the line sensors, and a two-dimensional imaging element which emits electric charge by means of photoelectric conversion. A corresponding method is also disclosed.

Abstract translation: 一种扫描装置及方法，其特征在于，包括：移动台，其上设有试样;照射装置，用于对试样进行电子束照射;检测装置，用于通过检测包含二次或反射电子 照射区域和用于在检测表面上成像次级束的成像电子光学系统。 一种辅助光束检测器，包括布置在检测表面上以将次级光束转换为光的荧光单元，用于通过光电转换形成电荷的一维线传感器，用于在线的预定线中累积电荷的阵列成像元件 传感器和通过光电转换发射电荷的二维成像元件。 还公开了相应的方法。

公开(公告)号：US07601972B2

公开(公告)日：2009-10-13

申请号：US11907097

申请日：2007-10-09

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

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

IPC: H01J37/18

CPC classification number: G03F7/70616 ,  G01N23/225 ,  H01J37/05 ,  H01J37/06 ,  H01J37/073 ,  H01J37/075 ,  H01J37/185 ,  H01J37/20 ,  H01J37/222 ,  H01J37/226 ,  H01J37/244 ,  H01J37/28 ,  H01J2237/0435 ,  H01J2237/057 ,  H01J2237/06316 ,  H01J2237/082 ,  H01J2237/202 ,  H01J2237/20228 ,  H01J2237/204 ,  H01J2237/22 ,  H01J2237/2446 ,  H01J2237/24485 ,  H01J2237/24564 ,  H01J2237/248 ,  H01J2237/2482 ,  H01J2237/2806 ,  H01J2237/2816 ,  H01J2237/2817

Abstract: An inspection apparatus and a semiconductor device manufacturing method using the same. The inspection apparatus is used for defect inspection, line width measurement, surface potential measurement or the like of a sample such as a wafer. In the inspection apparatus, a plurality of charged particles is delivered from a primary optical system to the sample, and secondary charged particles emitted from the sample are separated from the primary optical system and introduced through a secondary optical system to a detector. Irradiation of the charged particles is conducted while moving the sample. Irradiation spots of the charged particles are arranged by N rows along a moving direction of the sample and by M columns along a direction perpendicular thereto. Every row of the irradiation spots of the charged particles is shifted successively by a predetermined amount in a direction perpendicular to the moving direction of the sample.

公开(公告)号：US20070272859A1

公开(公告)日：2007-11-29

申请号：US11808497

申请日：2007-06-11

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.

Abstract translation: 本发明的目的是提供一种改进的电子束装置，其处理量，精度等得到改进。本发明的电子束装置的特征之一是具有多个光学系统，每个光学系统 包括用于用多个一次电子束扫描和照射样品的一次电子光学系统; 用于检测通过用一次电子束照射样品而发射的多个次级光束的检测器装置; 以及用于将二次电子束从样品引导到检测器装置的二次电子光学系统; 全部配置为使得多个光学系统用其一次电子束扫描样品的不同区域，并且检测从各个区域中的每一个发射的各个二次电子束。 这是什么使得更高的吞吐量成为可能。 为了提供高精度，该装置被配置为使得其光学系统的轴线可以通过各种方法对准和校正像差。

公开(公告)号：US20070045536A1

公开(公告)日：2007-03-01

申请号：US11350009

申请日：2006-02-09

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

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

IPC: G21K7/00

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: The present invention relates to a substrate inspection apparatus for inspecting a pattern formed on a substrate by irradiating a charged particle beam onto the substrate. The substrate inspection apparatus comprises: an electron beam apparatus including a charged particle beam source for emitting a charged particle beam, a primary optical system for irradiating the charged particle beam onto the substrate, a secondary optical system into which a secondary charged particle beam is introduced, the secondary charged particle beam being emitted from the substrate by an irradiation of the charged particle beam, a detection system for detecting the secondary charged particle beam introduced into said secondary optical system and outputting as an electric signal, and a process control system for processing and evaluating the electric signal; a stage unit for holding the substrate and moving the substrate relatively to said electron beam apparatus; a working chamber capable of shielding at least an upper region of the stage unit form outside to control under desired atmosphere; and a substrate load-unload mechanism for transferring the substrate into or out of the stage.

Abstract translation: 本发明涉及一种基板检查装置，用于通过将带电粒子束照射到基板上来检查形成在基板上的图案。 基板检查装置包括：电子束装置，其包括用于发射带电粒子束的带电粒子束源，用于将带电粒子束照射到基板上的主光学系统，引入二次带电粒子束的二次光学系统 通过照射带电粒子束从基板发射的二次带电粒子束，用于检测引入到所述二次光学系统中并输出作为电信号的二次带电粒子束的检测系统和用于处理的过程控制系统 并评估电信号; 用于保持基板并相对于所述电子束装置移动基板的载物台单元; 能够至少屏蔽舞台单元的上部区域的工作室形成外部以在期望的气氛下进行控制; 以及用于将衬底转移到或离开工作台的衬底装载 - 卸载机构。