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公开(公告)号：US07582885B2
公开(公告)日：2009-09-01
申请号：US11401878
申请日：2006-04-12
IPC分类号： H01J1/50
CPC分类号： H01J41/14 , H01J37/28 , H01J41/12 , H01J2237/0245 , H01J2237/062 , H01J2237/06341 , H01J2237/1825
摘要： A small-sized charged particle beam apparatus capable of maintaining high vacuum even during emission of an electron beam is provided. A nonevaporative getter pump is placed upstream of differential pumping of an electron optical system of the charged particle beam apparatus, and a minimum number of ion pumps are placed downstream, so that both the pumps are used in combination. Further, by mounting a detachable coil on an electron gun part, the inside of a column can be maintained under high vacuum with a degree of vacuum in the order of 10−8 Pa.
摘要翻译： 提供即使在电子束的发射期间也能保持高真空的小尺寸带电粒子束装置。 将非蒸发性吸气泵放置在带电粒子束装置的电子光学系统的差分泵浦的上游，并且将最少数量的离子泵放置在下游，使得两个泵组合使用。 此外，通过将可拆卸线圈安装在电子枪部件上，可以将真空度保持在10-8Pa以下的真空度的高真空下。
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公开(公告)号：US07615765B2
公开(公告)日：2009-11-10
申请号：US11589821
申请日：2006-10-31
CPC分类号： H01J37/18 , H01J37/28 , H01J2237/022 , H01J2237/1825 , H01J2237/188 , H01J2237/31749
摘要： There is provided a compact charged particle beam apparatus with a non-evaporable getter pump which maintains high vacuum even during emission of an electron beam without generating foreign particles. The apparatus comprises: a charged particle source; a charged particle optics which focuses a charged particle beam emitted from the charged particle source on a sample and performs scanning; and means of vacuum pumping which evacuates the charged particle optics. The means of vacuum pumping has a differential pumping structure with two or more vacuum chambers connected through an opening in series. A pump made of non-evaporable getter alloy is placed in an upstream vacuum chamber with a high degree of vacuum, and a gas absorbing surface of the non-evaporable getter alloy is fixed without contact with another part.
摘要翻译： 提供了一种具有非蒸发性吸气泵的紧凑型带电粒子束装置，即使在电子束的发射期间也能保持高真空而不产生异物。 该装置包括：带电粒子源; 带电粒子光学器件，其将从带电粒子源发射的带电粒子束聚焦在样品上并执行扫描; 以及抽空带电粒子光学元件的真空泵送装置。 真空泵送装置具有差分泵送结构，其中两个或多个真空室通过串联的开口连接。 将由不可蒸发的吸气剂合金制成的泵放置在具有高真空度的上游真空室中，并且非蒸发性吸气剂合金的气体吸收表面固定而不与另一部分接触。
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公开(公告)号：US20070102650A1
公开(公告)日：2007-05-10
申请号：US11589821
申请日：2006-10-31
CPC分类号： H01J37/18 , H01J37/28 , H01J2237/022 , H01J2237/1825 , H01J2237/188 , H01J2237/31749
摘要： There is provided a compact charged particle beam apparatus with a non-evaporable getter pump which maintains high vacuum even during emission of an electron beam without generating foreign particles. The apparatus comprises: a charged particle source; a charged particle optics which focuses a charged particle beam emitted from the charged particle source on a sample and performs scanning; and means of vacuum pumping which evacuates the charged particle optics. The means of vacuum pumping has a differential pumping structure with two or more vacuum chambers connected through an opening in series. A pump made of non-evaporable getter alloy is placed in an upstream vacuum chamber with a high degree of vacuum, and a gas absorbing surface of the non-evaporable getter alloy is fixed without contact with another part.
摘要翻译： 提供了一种具有非蒸发性吸气泵的紧凑型带电粒子束装置，即使在电子束的发射期间也能保持高真空而不产生异物。 该装置包括：带电粒子源; 带电粒子光学器件，其将从带电粒子源发射的带电粒子束聚焦在样品上并执行扫描; 以及抽空带电粒子光学元件的真空泵送装置。 真空泵送装置具有差分泵送结构，其中两个或多个真空室通过串联的开口连接。 将由不可蒸发的吸气剂合金制成的泵放置在具有高真空度的上游真空室中，并且非蒸发性吸气剂合金的气体吸收表面固定而不与另一部分接触。
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公开(公告)号：US20060231773A1
公开(公告)日：2006-10-19
申请号：US11401878
申请日：2006-04-12
IPC分类号： G21G5/00
CPC分类号： H01J41/14 , H01J37/28 , H01J41/12 , H01J2237/0245 , H01J2237/062 , H01J2237/06341 , H01J2237/1825
摘要： A small-sized charged particle beam apparatus capable of maintaining high vacuum even during emission of an electron beam is provided. A nonevaporative getter pump is placed upstream of differential pumping of an electron optical system of the charged particle beam apparatus, and a minimum number of ion pumps are placed downstream, so that both the pumps are used in combination. Further, by mounting a detachable coil on an electron gun part, the inside of a column can be maintained under high vacuum with a degree of vacuum in the order of 10−8 Pa.
摘要翻译： 提供即使在电子束的发射期间也能保持高真空的小尺寸带电粒子束装置。 将非蒸发性吸气泵放置在带电粒子束装置的电子光学系统的差分泵浦的上游，并且将最少数量的离子泵放置在下游，使得两个泵组合使用。 此外，通过将可拆卸线圈安装在电子枪部件上，可以将真空度保持在10 -8 Pa以下的真空度的高真空下。
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公开(公告)号：US20080067396A1
公开(公告)日：2008-03-20
申请号：US11749181
申请日：2007-05-16
IPC分类号： H01J1/50
CPC分类号： H01J37/143 , H01J37/28 , H01J2237/1405 , H01J2237/2813 , H01J2237/31749
摘要： The present invention provides a compact electron lens causing little aberration, and a charged particle beam apparatus such as a scanning electron microscope that is super compact and offers a high resolution. An upper magnetic pole and a sample-side magnetic pole are magnetically coupled to the respective poles of a permanent magnet that is made of a highly strong magnetic material such as a rare-earth cobalt system or a neodymium-iron-boron system, that is axially symmetrical, and that has a hole in the center thereof. An inner gap is created on the side of a center axis. Thus, a magnetic lens is formed axially. Moreover, a semi-stationary magnetic path that shields an outside magnetic field and has the magnetic reluctance thereof regulated is disposed outside. The sample-side magnetic pole and magnetic path defines a region where magnetic reluctance is the highest outside the permanent magnet. A space defined by the permanent magnet, upper magnetic pole, sample-die magnetic pole, and semi-stationary magnetic path is filled with a filling made of a non-magnetic material. Thus, an objective lens is constructed.
摘要翻译： 本发明提供一种产生很小像差的小型电子透镜，以及诸如扫描电子显微镜的带电粒子束装置，其具有超级紧凑并且提供高分辨率。 上磁极和样本侧磁极磁耦合到由诸如稀土钴体系或钕铁硼体系的高强度磁性材料制成的永磁体的各极上，即， 轴向对称，并且在其中心具有孔。 在中心轴的一侧产生内部间隙。 因此，磁性透镜轴向形成。 此外，将外部磁场屏蔽并具有调节磁阻的半静态磁路设置在外部。 样品侧磁极和磁路限定永磁体外磁阻最高的区域。 由永磁体，上磁极，样品芯磁极和半静态磁路限定的空间填充有由非磁性材料制成的填充物。 因此，构成物镜。
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公开(公告)号：US07759652B2
公开(公告)日：2010-07-20
申请号：US11749181
申请日：2007-05-16
IPC分类号： H01J1/50
CPC分类号： H01J37/143 , H01J37/28 , H01J2237/1405 , H01J2237/2813 , H01J2237/31749
摘要： The present invention provides a compact electron lens causing little aberration, and a charged particle beam apparatus such as a scanning electron microscope that is super compact and offers a high resolution. An upper magnetic pole and a sample-side magnetic pole are magnetically coupled to the respective poles of a permanent magnet that is made of a highly strong magnetic material such as a rare-earth cobalt system or a neodymium-iron-boron system, that is axially symmetrical, and that has a hole in the center thereof. An inner gap is created on the side of a center axis. Thus, a magnetic lens is formed axially. Moreover, a semi-stationary magnetic path that shields an outside magnetic field and has the magnetic reluctance thereof regulated is disposed outside. The sample-side magnetic pole and magnetic path defines a region where magnetic reluctance is the highest outside the permanent magnet. A space defined by the permanent magnet, upper magnetic pole, sample-die magnetic pole, and semi-stationary magnetic path is filled with a filling made of a non-magnetic material. Thus, an objective lens is constructed.
摘要翻译： 本发明提供一种产生很小像差的小型电子透镜，以及诸如扫描电子显微镜的带电粒子束装置，其具有超级紧凑并且提供高分辨率。 上磁极和样本侧磁极磁耦合到由诸如稀土钴体系或钕铁硼体系的高强度磁性材料制成的永磁体的各极上，即， 轴向对称，并且在其中心具有孔。 在中心轴的一侧产生内部间隙。 因此，磁性透镜轴向形成。 此外，将外部磁场屏蔽并具有调节磁阻的半静态磁路设置在外部。 样品侧磁极和磁路限定永磁体外磁阻最高的区域。 由永磁体，上磁极，样品芯磁极和半静态磁路限定的空间填充有由非磁性材料制成的填充物。 因此，构成物镜。
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7.发明申请Charged particle beam apparatus and method for charged particle beam adjustment 有权带电粒子束装置和带电粒子束调整方法公开(公告)号：US20070284542A1
公开(公告)日：2007-12-13
申请号：US11715506
申请日：2007-03-08
申请人： Takeshi Ogashiwa , Mitsugu Sato , Atsushi Takane , Toshihide Agemura , Yuusuke Narita , Takeharu Shichiji , Shinichi Tomita , Sukehiro Ito , Junichi Katane
发明人： Takeshi Ogashiwa , Mitsugu Sato , Atsushi Takane , Toshihide Agemura , Yuusuke Narita , Takeharu Shichiji , Shinichi Tomita , Sukehiro Ito , Junichi Katane
IPC分类号： G01N21/00
CPC分类号： G01N23/22 , H01J37/1471 , H01J37/28 , H01J2237/1501
摘要： A charged particle beam apparatus facilitating adjusting the beam center axis of a charged particle beam in a case where optical conditions are modified or in a case where the beam center axis of the charged particle beam is moved due to state variation of the apparatus. When the beam center axis of a primary charged particle beam is adjusted with a deflector (aligner), a processing step (1) for measuring the sensitivity of the aligner and a processing step (2) for detecting the deviation between the center of the primary charged particle beam and the center of the objective aperture are provided. The charged particle beam apparatus has means for determining the aligner set values, using the aligner sensitivity measured in the processing step (1) and the amount of deviation detected in the processing step (2), such that the primary charged particle beam passes through the center of the objective aperture and controlling the aligner using the aligner set values.
摘要翻译： 在光学条件被修改的情况下或者由于装置的状态变化使带电粒子束的束中心轴移动的情况下，有利于调整带电粒子束的束中心轴的带电粒子束装置。 当用偏转器（对准器）调整初级带电粒子束的束中心轴时，用于测量对准器的灵敏度的处理步骤（1）和用于检测初级带电粒子的中心之间的偏差的处理步骤（2） 提供带电粒子束和物镜孔的中心。 带电粒子束装置具有使用在处理步骤（1）中测量的对准器灵敏度和在处理步骤（2）中检测到的偏差量来确定对准器设定值的装置，使得初级带电粒子束通过 物镜光圈中心，并使用对准器设定值控制对准器。
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公开(公告)号：US08304723B2
公开(公告)日：2012-11-06
申请号：US12725857
申请日：2010-03-17
申请人： Toshihide Agemura , Mitsugu Sato
发明人： Toshihide Agemura , Mitsugu Sato
CPC分类号： G01R31/307 , G01N23/2251 , H01J37/28 , H01J2237/15 , H01J2237/24564 , H01J2237/24592 , H01J2237/2487 , H01J2237/28 , H01J2237/2817
摘要： In a defect inspection apparatus which combines a plurality of probes for measuring electric properties of a specimen including a fine circuit line pattern with a charged particle beam apparatus, the charged particle beam apparatus reduces a degradation in resolution even with an image-shift of ±75 μm or more. The defect inspection apparatus has a CAD navigation function associated with an image-shift function. The CAD navigation function uses coordinates for converting an image-shift moving amount to a DUT stage moving amount in communications between an image processing unit for processing charged particle beam images and a memory for storing information on circuit line patterns. The defect inspection provides the user with significantly improved usability.
摘要翻译： 在将包含精细电路线图案的样本的电特性的多个探针与带电粒子束装置组合的缺陷检查装置中，带电粒子束装置即使图像偏移为±75，也降低了分辨率的劣化 μm以上。 缺陷检查装置具有与图像移位功能相关联的CAD导航功能。 CAD导航功能在用于处理带电粒子束图像的图像处理单元和用于存储关于电路线图案的信息的存储器之间的通信中使用用于将图像移位移动量转换为DUT阶段移动量的坐标。 缺陷检查为用户提供了显着提高的可用性。
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公开(公告)号：US20100187416A1
公开(公告)日：2010-07-29
申请号：US12725857
申请日：2010-03-17
申请人： Toshihide AGEMURA , Mitsugu Sato
发明人： Toshihide AGEMURA , Mitsugu Sato
CPC分类号： G01R31/307 , G01N23/2251 , H01J37/28 , H01J2237/15 , H01J2237/24564 , H01J2237/24592 , H01J2237/2487 , H01J2237/28 , H01J2237/2817
摘要： In a defect inspection apparatus which combines a plurality of probes for measuring electric properties of a specimen including a fine circuit line pattern with a charged particle beam apparatus, the charged particle beam apparatus reduces a degradation in resolution even with an image-shift of ±75 μm or more. The defect inspection apparatus has a CAD navigation function associated with an image-shift function. The CAD navigation function uses coordinates for converting an image-shift moving amount to a DUT stage moving amount in communications between an image processing unit for processing charged particle beam images and a memory for storing information on circuit line patterns. The defect inspection provides the user with significantly improved usability.
摘要翻译： 在将包含精细电路线图案的样本的电特性的多个探针与带电粒子束装置组合的缺陷检查装置中，带电粒子束装置即使图像偏移为±75，也降低了分辨率的劣化 μm以上。 缺陷检查装置具有与图像移位功能相关联的CAD导航功能。 CAD导航功能在用于处理带电粒子束图像的图像处理单元和用于存储关于电路线图案的信息的存储器之间的通信中使用用于将图像移位移动量转换为DUT阶段移动量的坐标。 缺陷检查为用户提供了显着提高的可用性。
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公开(公告)号：US07705303B2
公开(公告)日：2010-04-27
申请号：US12068789
申请日：2008-02-12
申请人： Toshihide Agemura , Mitsugu Sato
发明人： Toshihide Agemura , Mitsugu Sato
IPC分类号： H01J37/304
CPC分类号： G01R31/307 , G01N23/2251 , H01J37/28 , H01J2237/15 , H01J2237/24564 , H01J2237/24592 , H01J2237/2487 , H01J2237/28 , H01J2237/2817
摘要： In a defect inspection apparatus which combines a plurality of probes for measuring electric properties of a specimen including a fine circuit line pattern with a charged particle beam apparatus, the charged particle beam apparatus reduces a degradation in resolution even with an image-shift of ±75 μm or more. The defect inspection apparatus has a CAD navigation function associated with an image-shift function. The CAD navigation function uses coordinates for converting an image-shift moving amount to a DUT stage moving amount in communications between an image processing unit for processing charged particle beam images and a memory for storing information on circuit line patterns. The defect inspection provides the user with significantly improved usability.
摘要翻译： 在将包含精细电路线图案的样本的电特性的多个探针与带电粒子束装置组合的缺陷检查装置中，带电粒子束装置即使图像偏移为±75，也降低了分辨率的劣化 μm以上。 缺陷检查装置具有与图像移位功能相关联的CAD导航功能。 CAD导航功能在用于处理带电粒子束图像的图像处理单元和用于存储关于电路线图案的信息的存储器之间的通信中使用用于将图像移位移动量转换为DUT阶段移动量的坐标。 缺陷检查为用户提供了显着提高的可用性。
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