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公开(公告)号：US20130270435A1
公开(公告)日：2013-10-17
申请号：US13879051
申请日：2011-10-05
IPC分类号： H01J37/02
CPC分类号： H01J37/023 , H01J37/153 , H01J37/28 , H01J2237/1534
摘要： The electron beam device includes a source of electrons and an objective deflector. The electron beam device obtains an image on the basis of signals of secondary electrons, etc. which are emitted from a material by an electron beam being projected. The electron beam device further includes a bias chromatic aberration correction element, further including an electromagnetic deflector which is positioned closer to the source of the electrons than the objective deflector, and an electrostatic deflector which has a narrower interior diameter than the electromagnetic deflector, is positioned within the electromagnetic deflector such that the height-wise position from the material overlaps with the electromagnetic deflector, and is capable of applying an offset voltage. It is thus possible to provide an electron beam device with which it is possible to alleviate geometric aberration (parasitic aberration) caused by deflection and implement deflection over a wide field of view with high resolution.
摘要翻译： 电子束装置包括电子源和物镜偏转器。 电子束装置基于通过投射的电子束从材料发射的二次电子等的信号获得图像。 电子束装置还包括偏置色差校正元件，该偏置色差校正元件还包括位于比物镜偏转器更靠近电子源的电磁偏转器和具有比电磁偏转器更窄的内径的静电偏转器， 在电磁偏转器内，使得材料的高度位置与电磁偏转器重叠，并且能够施加偏移电压。 因此，可以提供一种电子束装置，通过该电子束装置可以减轻由偏转引起的几何像差（寄生像差），并且在高分辨率的宽视角上实现偏转。
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公开(公告)号：US08735814B2
公开(公告)日：2014-05-27
申请号：US13879051
申请日：2011-10-05
CPC分类号： H01J37/023 , H01J37/153 , H01J37/28 , H01J2237/1534
摘要： The electron beam device includes a source of electrons and an objective deflector. The electron beam device obtains an image on the basis of signals of secondary electrons, etc. which are emitted from a material by an electron beam being projected. The electron beam device further includes a bias chromatic aberration correction element, further including an electromagnetic deflector which is positioned closer to the source of the electrons than the objective deflector, and an electrostatic deflector which has a narrower interior diameter than the electromagnetic deflector, is positioned within the electromagnetic deflector such that the height-wise position from the material overlaps with the electromagnetic deflector, and is capable of applying an offset voltage. It is thus possible to provide an electron beam device with which it is possible to alleviate geometric aberration (parasitic aberration) caused by deflection and implement deflection over a wide field of view with high resolution.
摘要翻译： 电子束装置包括电子源和物镜偏转器。 电子束装置基于通过投射的电子束从材料发射的二次电子等的信号获得图像。 电子束装置还包括偏置色差校正元件，该偏置色差校正元件还包括位于比物镜偏转器更靠近电子源的电磁偏转器和具有比电磁偏转器更窄的内径的静电偏转器， 在电磁偏转器内，使得材料的高度位置与电磁偏转器重叠，并且能够施加偏移电压。 因此，可以提供一种电子束装置，通过该电子束装置可以减轻由偏转引起的几何像差（寄生像差），并且在高分辨率的宽视角上实现偏转。
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公开(公告)号：US09230775B2
公开(公告)日：2016-01-05
申请号：US13451596
申请日：2012-04-20
CPC分类号： H01J37/28 , H01J37/265 , H01J2237/1532 , H01J2237/1536 , H01J2237/2811
摘要： A charged particle instrument including a controlling and operating unit for controlling a charged particle source, deflecting means, and focus changing means and making a data for an image by an electric signal detected by a detector, and a recording unit for preserving a correction coefficient registered at each image-acquisition, in which the controlling and operating unit acquires plural images while changing a focus, and controls an optical condition such that a landing angle of a charged particle beam becomes perpendicular when an image for measurement is acquired on the basis of a position shift amount of a mark in the image and a correction coefficient registered to the recording unit.
摘要翻译： 一种带电粒子仪器，包括用于控制带电粒子源的控制和操作单元，偏转装置和聚焦改变装置，以及通过由检测器检测的电信号为图像提供数据;以及记录单元，用于保持记录的校正系数 在每次图像获取期间，控制和操作单元在改变焦点的同时获取多个图像，并且控制光学条件，使得当基于以下步骤获得用于测量的图像时，带电粒子束的着陆角变为垂直 图像中的标记的位置偏移量和登记到记录单元的校正系数。
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公开(公告)号：US20120286160A1
公开(公告)日：2012-11-15
申请号：US13451596
申请日：2012-04-20
IPC分类号： H01J37/28
CPC分类号： H01J37/28 , H01J37/265 , H01J2237/1532 , H01J2237/1536 , H01J2237/2811
摘要： A charged particle instrument including a controlling and operating unit for controlling a charged particle source, deflecting means, and focus changing means and making a data for an image by an electric signal detected by a detector, and a recording unit for preserving a correction coefficient registered at each image-acquisition, in which the controlling and operating unit acquires plural images while changing a focus, and controls an optical condition such that a landing angle of a charged particle beam becomes perpendicular when an image for measurement is acquired on the basis of a position shift amount of a mark in the image and a correction coefficient registered to the recording unit.
摘要翻译： 一种带电粒子仪器，包括用于控制带电粒子源的控制和操作单元，偏转装置和聚焦改变装置，以及通过由检测器检测的电信号为图像提供数据;以及记录单元，用于保持记录的校正系数 在每次图像获取期间，控制和操作单元在改变焦点的同时获取多个图像，并且控制光学条件，使得当基于以下步骤获得用于测量的图像时，带电粒子束的着陆角变为垂直 图像中的标记的位置偏移量和登记到记录单元的校正系数。
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公开(公告)号：US20130175447A1
公开(公告)日：2013-07-11
申请号：US13812451
申请日：2011-08-26
IPC分类号： H01J37/28
CPC分类号： H01J37/28 , H01J37/153 , H01J2237/1506 , H01J2237/1532 , H01J2237/2826
摘要： Provided is a scanning electron microscope equipped with a high-speed and high-precision astigmatism measuring means to be used when both astigmatism generated by an electron-beam column and astigmatism generated from the surroundings of a measuring sample exist. This scanning electron microscope is characterized in controlling an astigmatism corrector (201) with high-speed and high-precision, to correct the astigmatism, by using both a method of obtaining the astigmatism from the qualities of two-dimensional images to be acquired upon changing the intensity of the astigmatism corrector (201), and a method of measuring the astigmatism from the change in the position displacement of an electron beam that occurs when the electron beam is tilted using a tilt deflector (202).
摘要翻译： 本发明提供一种扫描电子显微镜，其配备有当由电子束柱产生的散光和从测量样品的周围产生的散光存在时使用的高速和高精度散光测量装置。 该扫描电子显微镜的特征在于以高速和高精度控制像散校正器（201），以通过使用从改变后获得的二维图像的质量获得散光的方法来校正像散 散光校正器（201）的强度，以及根据使用倾斜偏转器（202）使电子束倾斜时发生的电子束的位置偏移的变化来测量像散的方法。
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公开(公告)号：US08704175B2
公开(公告)日：2014-04-22
申请号：US13812451
申请日：2011-08-26
IPC分类号： H01J37/28
CPC分类号： H01J37/28 , H01J37/153 , H01J2237/1506 , H01J2237/1532 , H01J2237/2826
摘要： Provided is a scanning electron microscope equipped with a high-speed and high-precision astigmatism measuring means to be used when both astigmatism generated by an electron-beam column and astigmatism generated from the surroundings of a measuring sample exist. This scanning electron microscope is characterized in controlling an astigmatism corrector (201) with high-speed and high-precision, to correct the astigmatism, by using both a method of obtaining the astigmatism from the qualities of two-dimensional images to be acquired upon changing the intensity of the astigmatism corrector (201), and a method of measuring the astigmatism from the change in the position displacement of an electron beam that occurs when the electron beam is tilted using a tilt deflector (202).
摘要翻译： 本发明提供一种扫描电子显微镜，其配备有当由电子束柱产生的散光和从测量样品的周围产生的散光存在时使用的高速和高精度散光测量装置。 该扫描电子显微镜的特征在于以高速和高精度控制像散校正器（201），以通过使用从改变后获得的二维图像的质量获得散光的方法来校正像散 散光校正器（201）的强度，以及根据使用倾斜偏转器（202）使电子束倾斜时发生的电子束的位置偏移的变化来测量像散的方法。
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公开(公告)号：US08816277B2
公开(公告)日：2014-08-26
申请号：US13386540
申请日：2010-07-26
CPC分类号： H01J37/28 , G06T7/74 , G06T2207/10061 , G06T2207/30148 , G06T2207/30204 , H01J37/1478 , H01J2237/24578 , H01J2237/2611 , H01J2237/2817
摘要： An amount of pattern position displacement between observation images acquired by irradiating from two different directions is changed depending on beam deflection for moving an image acquisition position. In a pattern evaluation method that measures astigmatic difference or focus position displacement having a small amount of dose at a high speed using parallax caused by the tilted beam, a correction value obtained in advance by measurement is reflected in an amount of pattern position displacement between observation images obtained by irradiating from at least two different directions and generated in accordance with the amount of beam deflection for moving an image acquisition position. A processing unit calculates an amount of correction of an amount of pattern position displacement depending on beam deflection of a beam deflecting unit for moving an image acquisition position on the sample at a high speed.
摘要翻译： 通过从两个不同方向照射获取的观察图像之间的图案位置位移量根据用于移动图像获取位置的光束偏转而改变。 在使用由倾斜光束引起的视差来高速度地测量具有少量剂量的散光差异或聚焦位置位移的图案评估方法中，通过测量预先获得的校正值反映在观察之间的图案位置位移量 通过从至少两个不同方向照射而产生的并且根据用于移动图像获取位置的光束偏转量而产生的图像。 处理单元计算取决于用于在高速下移动样本上的图像获取位置的光束偏转单元的光束偏转的图案位置位移量的校正量。
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公开(公告)号：US20130026361A1
公开(公告)日：2013-01-31
申请号：US13386540
申请日：2010-07-26
CPC分类号： H01J37/28 , G06T7/74 , G06T2207/10061 , G06T2207/30148 , G06T2207/30204 , H01J37/1478 , H01J2237/24578 , H01J2237/2611 , H01J2237/2817
摘要： An amount of pattern position displacement between observation images acquired by irradiating from two different directions is changed depending on beam deflection for moving an image acquisition position. In a pattern evaluation method that measures astigmatic difference or focus position displacement having a small amount of dose at a high speed using parallax caused by the tilted beam, a correction value obtained in advance by measurement is reflected in an amount of pattern position displacement between observation images obtained by irradiating from at least two different directions and generated in accordance with the amount of beam deflection for moving an image acquisition position. A processing unit calculates an amount of correction of an amount of pattern position displacement depending on beam deflection of a beam deflecting unit for moving an image acquisition position on the sample at a high speed.
摘要翻译： 通过从两个不同方向照射获取的观察图像之间的图案位置位移量根据用于移动图像获取位置的光束偏转而改变。 在使用由倾斜光束引起的视差来高速度地测量具有少量剂量的散光差异或聚焦位置位移的图案评估方法中，通过测量预先获得的校正值反映在观察之间的图案位置位移量 通过从至少两个不同方向照射而产生的并且根据用于移动图像获取位置的光束偏转量而产生的图像。 处理单元计算取决于用于在高速下移动样本上的图像获取位置的光束偏转单元的光束偏转的图案位置位移量的校正量。
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公开(公告)号：US08575547B2
公开(公告)日：2013-11-05
申请号：US12982202
申请日：2010-12-30
申请人： Yasunari Sohda , Shoji Hotta , Shinji Okazaki , Muneyuki Fukuda
发明人： Yasunari Sohda , Shoji Hotta , Shinji Okazaki , Muneyuki Fukuda
CPC分类号： G03F7/7065 , G03F7/70541 , G03F7/70625 , G06T7/0006 , G06T2207/10056 , G06T2207/30148 , H01J2237/221 , H01J2237/24578 , H01J2237/2817 , H01L22/12
摘要： The present invention provides an electron beam measurement technique for measuring the shapes or sizes of portions of patterns on a sample, or detecting a defect or the like. An electron beam measurement apparatus has a unit for irradiating the patterns delineated on a substrate by a multi-exposure method, and classifying the patterns in an acquired image into multiple groups according to an exposure history record. The exposure history record is obtained based on brightness of the patterns and a difference between white bands of the patterns.
摘要翻译： 本发明提供一种电子束测量技术，用于测量样品上图案的形状或尺寸，或检测缺陷等。 电子束测量装置具有通过多曝光方法照射在基板上描绘的图案的单元，并且根据曝光历史记录将所获取的图像中的图案分类为多组。 基于图案的亮度和图案的白色波段之间的差异获得曝光历史记录。
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公开(公告)号：US07884325B2
公开(公告)日：2011-02-08
申请号：US12328161
申请日：2008-12-04
申请人： Yasunari Sohda , Shoji Hotta , Shinji Okazaki , Muneyuki Fukuda
发明人： Yasunari Sohda , Shoji Hotta , Shinji Okazaki , Muneyuki Fukuda
CPC分类号： G03F7/7065 , G03F7/70541 , G03F7/70625 , G06T7/0006 , G06T2207/10056 , G06T2207/30148 , H01J2237/221 , H01J2237/24578 , H01J2237/2817 , H01L22/12
摘要： The present invention provides an electron beam measurement technique for measuring the shapes or sizes of portions of patterns on a sample, or detecting a defect or the like. An electron beam measurement apparatus has a unit for irradiating the patterns delineated on a substrate by a multi-exposure method, and classifying the patterns in an acquired image into multiple groups according to an exposure history record. The exposure history record is obtained based on brightness of the patterns and a difference between white bands of the patterns.
摘要翻译： 本发明提供一种电子束测量技术，用于测量样品上图案的形状或尺寸，或检测缺陷等。 电子束测量装置具有通过多曝光方法照射在基板上描绘的图案的单元，并且根据曝光历史记录将所获取的图像中的图案分类为多组。 基于图案的亮度和图案的白色波段之间的差异获得曝光历史记录。
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