公开(公告)号：US07205540B2

公开(公告)日：2007-04-17

申请号：US11262844

申请日：2005-11-01

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

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

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

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

摘要： 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.

摘要翻译： 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：US07521692B2

公开(公告)日：2009-04-21

申请号：US11896519

申请日：2007-09-04

申请人： Masahiro Hatakeyama ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe ,  Nobuharu Noji

发明人： Masahiro Hatakeyama ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe ,  Nobuharu Noji

IPC分类号： G01K1/08 ,  H01J3/14 ,  H01J3/26

CPC分类号： H01J37/222 ,  G01N21/956 ,  H01J37/224 ,  H01J37/244 ,  H01J2237/2445 ,  H01J2237/2447 ,  H01R13/2421 ,  H04N5/2253 ,  Y10S439/935

摘要： An electron beam apparatus comprises a TDI sensor 64 and a feed-through device 50. The feed-through device has a socket contact 54 for interconnecting a pin 52 attached to a flanged 51 for separating different environments and the other pin 53 making a pair with the pin 52, in which the pin 52, the other pin 53 and the socket contact 54 together construct a connecting block, and the socket contact 54 has an elastic member 61. Accordingly, even if a large number of connecting blocks are provided, the connecting force may be kept to such a low level as to prevent the breakage in the sensor. The pin 53 is connected with the TDI sensor 64, in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system to as small as possible so that a maximal acceptable distortion within the field of view may be set larger. Further, the number of integration stage may be determined such that the data rate of the TDI sensor would not be reduced but the number of pins would not be increased as much as possible. Preferably, the number of line count may be almost equal to the number of integration stages.

摘要翻译： 电子束装置包括TDI传感器64和馈通装置50.馈通装置具有插座触点54，用于互连连接到凸缘51的引脚52，用于分离不同的环境，而另一个引脚53与 销52，销52，另一销53和插座接触54一起构成连接块，插座触头54具有弹性构件61.因此，即使设置了大量的连接块， 连接力可以保持在如此低的水平，以防止传感器中的破损。 引脚53与TDI传感器64连接，其中像素阵列已经基于图像投影光学系统的光学特性被自适应地配置。 该传感器具有可以将图像投影光学系统的视野尽可能地减小的多个积分级，使得视野内的最大可接受失真可以被设定得更大。 此外，可以确定积分级的数量，使得TDI传感器的数据速率不会降低，但是引脚的数量不会尽可能多地增加。 优选地，行计数的数量可以几乎等于积分级数。

公开(公告)号：US20080099697A1

公开(公告)日：2008-05-01

申请号：US11898358

申请日：2007-09-11

申请人： Kenji Watanabe ,  Takeshi Murakami ,  Ryo Tajima ,  Masahiro Hatakeyama ,  Masatoshi Tsuneoka ,  Nobuharu Noji

发明人： Kenji Watanabe ,  Takeshi Murakami ,  Ryo Tajima ,  Masahiro Hatakeyama ,  Masatoshi Tsuneoka ,  Nobuharu Noji

IPC分类号： G21K5/10

CPC分类号： H01J37/28 ,  H01J37/026 ,  H01J37/153 ,  H01J37/29 ,  H01J2237/0047 ,  H01J2237/1532 ,  H01J2237/216

摘要： [Problem] To adjust astigmatism quickly with a simple algorithm by utilizing an autofocus estimation value of an image obtained from a pattern formed on a sample. [Means] A charged particle beam apparatus 300 for observing and estimating a sample W by applying a charged particle beam to sample W to detect secondary charged particles, such as electrons emitted from the sample, reflected electrons and backscattered electrons comprises astigmatism adjusting means 17 for adjusting astigmatism of the charged particle beam. Astigmatism adjusting means 17 is supplied with a correction voltage which maximizes a focus estimation value obtained from a pattern formed on sample W. Astigmatism adjusting means 17 is a multipole including a plurality of pairs of electrodes or coils facing each other to place the optical axis of the charged particle beam at the center. Also disclosed is a charged particle beam apparatus 400 capable of observation and estimation of a sample surface in a condition where no charge up exists over the whole sample W.

摘要翻译： [问题]通过利用从样品上形成的图案获得的图像的自动聚焦估计值，通过简单的算法快速调节像散。 用于通过对样品W施加带电粒子束以检测从样品发射的电子，反射电子和反向散射电子的二次带电粒子来观察和估计样品W的带电粒子束装置300包括散光调节装置17，用于 调整带电粒子束的散光。 散光调节装置17被提供校正电压，该校正电压使得从样本W上形成的图案获得的聚焦估计值最大化。散光调节装置17是包括多对电极或线圈彼此面对的多极，以将光轴 带电粒子束在中心。 还公开了一种能够在整个样品W上不存在电荷的情况下能够观察和估计样品表面的带电粒子束装置400。

公开(公告)号：US20060237646A1

公开(公告)日：2006-10-26

申请号：US10543151

申请日：2004-01-27

申请人： Kenji Watanabe ,  Takeshi Murakami ,  Masahiro Hatakeyama ,  Yoshinao Hirabayashi ,  Tohru Satake ,  Nobuharu Noji ,  Yuichiro Yamazaki ,  Ichirota Nagahama

发明人： Kenji Watanabe ,  Takeshi Murakami ,  Masahiro Hatakeyama ,  Yoshinao Hirabayashi ,  Tohru Satake ,  Nobuharu Noji ,  Yuichiro Yamazaki ,  Ichirota Nagahama

IPC分类号： G21K7/00

CPC分类号： H01J37/32211 ,  G01N23/225 ,  H01J37/32357 ,  H01J2237/2441 ,  H01J2237/2446

摘要： An apparatus capable of detecting defects of a pattern on a sample with high accuracy and reliability and at a high throughput, and a semiconductor manufacturing method using the same are provided. The electron beam apparatus is a mapping-projection-type electron beam apparatus for observing or evaluating a surface of the sample by irradiating the sample with a primary electron beam and forming on a detector an image of reflected electrons emitted from the sample. An electron impact-type detector such as an electron impact-type CCD or an electron impact-type TDI is used as the detector for detecting the reflected electrons. The reflected electrons are selectively detected from an energy difference between the reflected electrons and secondary electrons emitted from the sample. To eliminate charge-up caused on the sample surface by irradiation with the primary electron beam, the surface of the sample is covered with a cover placed above the sample and a gas is supplied to the space above the sample covered with the cover. The gas is brought into contact with the sample surface to reduce charge-up on the sample surface.

公开(公告)号：US07157703B2

公开(公告)日：2007-01-02

申请号：US10651105

申请日：2003-08-29

申请人： Mamoru Nakasuji ,  Tohru Satake ,  Nobuharu Noji ,  Shoji Yoshikawa ,  Takeshi Murakami

发明人： Mamoru Nakasuji ,  Tohru Satake ,  Nobuharu Noji ,  Shoji Yoshikawa ,  Takeshi Murakami

IPC分类号： H01J37/26

CPC分类号： H01J37/28 ,  H01J2237/0492 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2806 ,  H01J2237/2817

摘要： Provided is an electron beam system, in which an electron beam emitted from an electron gun is irradiated to a stencil mask, and the electron beam that has passed through the stencil mask is magnified by an electron lens and then detected by a detector having a plurality of pixels so as to form an image of the sample. Further provided is an electron beam system, in which a primary electron beam emitted from an electron gun is directed to a sample surface of a sample prepared as a subject to be inspected, and an electron image formed by a secondary electron beam emanated from the sample is magnified and detected, wherein an NA aperture is disposed in a path common to both of the primary electron beam and the secondary electron beam. An electron lens is disposed in the vicinity of a sample surface, and in this arrangement, a crossover produced by the electron gun, the electron lens and the NA aperture may be in conjugate relationships relative to each other with respect to the primary electron beam.

摘要翻译： 提供了一种电子束系统，其中从电子枪发射的电子束照射到模板掩模，并且已经通过模板掩模的电子束被电子透镜放大，然后由具有多个 以形成样品的图像。 进一步提供了一种电子束系统，其中从电子枪发射的一次电子束被引导到作为待检查对象制备的样品的样品表面，并且由从样品发出的二次电子束形成的电子图像 被放大和检测，其中NA孔径设置在一次电子束和二次电子束共同的路径中。 电子透镜设置在样品表面附近，并且在这种布置中，由电子枪，电子透镜和NA孔径产生的交叉可以相对于一次电子束相对于彼此的共轭关系。

公开(公告)号：US06998611B2

公开(公告)日：2006-02-14

申请号：US10234152

申请日：2002-09-05

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

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

IPC分类号： G01N23/00 ,  H01L21/66 ,  H01G23/00

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

摘要： 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 ExB 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.

公开(公告)号：US08525127B2

公开(公告)日：2013-09-03

申请号：US13398112

申请日：2012-02-16

申请人： Nobuharu Noji ,  Yoshihiko Naito ,  Hirosi Sobukawa ,  Kenji Terao ,  Masahiro Hatakeyama ,  Katsuya Okumura

发明人： Nobuharu Noji ,  Yoshihiko Naito ,  Hirosi Sobukawa ,  Kenji Terao ,  Masahiro Hatakeyama ,  Katsuya Okumura

IPC分类号： G21K5/10

CPC分类号： H01J37/265 ,  G01R31/307 ,  H01J37/04 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2594 ,  H01J2237/2817

摘要： Provided is a method and an apparatus for inspecting a sample surface with high accuracy. Provided is a method for inspecting a sample surface by using an electron beam method sample surface inspection apparatus, in which an electron beam generated by an electron gun of the electron beam method sample surface inspection apparatus is irradiated onto the sample surface, and secondary electrons emanating from the sample surface are formed into an image toward an electron detection plane of a detector for inspecting the sample surface, the method characterized in that a condition for forming the secondary electrons into an image on a detection plane of the detector is controlled such that a potential in the sample surface varies in dependence on an amount of the electron beam irradiated onto the sample surface.

摘要翻译： 提供了一种用于以高精度检查样品表面的方法和装置。 提供了一种使用电子束法样品表面检查装置检查样品表面的方法，其中由电子束法样品表面检查装置的电子枪产生的电子束照射到样品表面上，并且发射二次电子 从样品表面形成为检测样品表面的检测器的电子检测面的图像，其特征在于，将检测器的检测面上的二次电子形成为图像的条件进行控制，使得 样品表面的电位根据照射到样品表面上的电子束的量而变化。

公开(公告)号：US20120145921A1

公开(公告)日：2012-06-14

申请号：US13398112

申请日：2012-02-16

申请人： Nobuharu Noji ,  Yoshihiko Naito ,  Hirosi Sobukawa ,  Kenji Terao ,  Masahiro Hatakeyama ,  Katsuya Okumura

发明人： Nobuharu Noji ,  Yoshihiko Naito ,  Hirosi Sobukawa ,  Kenji Terao ,  Masahiro Hatakeyama ,  Katsuya Okumura

IPC分类号： G21K5/10

CPC分类号： H01J37/265 ,  G01R31/307 ,  H01J37/04 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2594 ,  H01J2237/2817

摘要： Provided is a method and an apparatus for inspecting a sample surface with high accuracy. Provided is a method for inspecting a sample surface by using an electron beam method sample surface inspection apparatus, in which an electron beam generated by an electron gun of the electron beam method sample surface inspection apparatus is irradiated onto the sample surface, and secondary electrons emanating from the sample surface are formed into an image toward an electron detection plane of a detector for inspecting the sample surface, the method characterized in that a condition for forming the secondary electrons into an image on a detection plane of the detector is controlled such that a potential in the sample surface varies in dependence on an amount of the electron beam irradiated onto the sample surface.

摘要翻译： 提供了一种用于以高精度检查样品表面的方法和装置。 提供了一种使用电子束法样品表面检查装置检查样品表面的方法，其中由电子束法样品表面检查装置的电子枪产生的电子束照射到样品表面上，并且发射二次电子 从样品表面形成为检测样品表面的检测器的电子检测面的图像，其特征在于，将检测器的检测面上的二次电子形成为图像的条件进行控制，使得 样品表面的电位根据照射到样品表面上的电子束的量而变化。

公开(公告)号：US07285010B2

公开(公告)日：2007-10-23

申请号：US10476795

申请日：2002-05-14

申请人： Masahiro Hatakeyama ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe ,  Nobuharu Noji

发明人： Masahiro Hatakeyama ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe ,  Nobuharu Noji

IPC分类号： H01R1/01

CPC分类号： H01J37/222 ,  G01N21/956 ,  H01J37/224 ,  H01J37/244 ,  H01J2237/2445 ,  H01J2237/2447 ,  H01R13/2421 ,  H04N5/2253 ,  Y10S439/935

摘要： An electron beam apparatus comprises a TDI sensor (64) and a feed-through device (50). The feed-through device has a socket contact (54) for interconnecting a pin (52) attached to a flanged (51) for separating different environments. The other pin (53) making a pair with the pin (52) and the socket contact (54) together construct a connecting block, and the socket contact (54) has an elastic member (61). The pin (53) is connected with the TDI sensor (64), in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system. Further, the number of integration stage may be determined such that the data rate of the TDI sensor would not be reduced but the number of pins would not be increased as much as possible. Preferably, the number of line count may be almost equal to the number of integration stages.

摘要翻译： 电子束装置包括TDI传感器（64）和馈通装置（50）。 馈通装置具有用于互连连接到带法兰（51）的销（52）的插座触点（54），用于分离不同的环境。 的。 与销（52）和插座触头（54）成对的另一个销（53）一起构成连接块，并且插座触头（54）具有弹性构件（61）。 引脚（53）与TDI传感器（64）连接，其中像素阵列已经基于图像投影光学系统的光学特性被自适应地配置。 该传感器具有可以减少图像投影光学系统的视野的多个积分级。 此外，可以确定积分级的数量，使得TDI传感器的数据速率不会降低，但是引脚的数量不会尽可能多地增加。 优选地，行计数的数量可以几乎等于积分级数。

公开(公告)号：US20060219909A1

公开(公告)日：2006-10-05

申请号：US11435128

申请日：2006-05-17

申请人： Masahiro Hatakeyama ,  Takeshi Murakami ,  Tohru Satake ,  Nobuharu Noji ,  Ichirota Nagahama ,  Yuichiro Yamazaki

发明人： Masahiro Hatakeyama ,  Takeshi Murakami ,  Tohru Satake ,  Nobuharu Noji ,  Ichirota Nagahama ,  Yuichiro Yamazaki

IPC分类号： G21K7/00 ,  G01N23/00

CPC分类号： H01J37/244 ,  G01N21/9501 ,  G03F1/84 ,  H01J37/285 ,  H01J2237/2441 ,  H01J2237/2446

摘要： A detecting apparatus for detecting a fine geometry on a surface of a sample, wherein an irradiation beam is irradiated against the sample placed in a different environment different from an atmosphere and a secondary radiation emanated from the sample is detected by a sensor, and wherein the sensor is disposed at an inside of the different environment, a processing device to process detection signals from the sensor is disposed at an outside of the different environment, and a transmission means transmits detection signals from the sensor to the processing device.