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1.发明申请公开(公告)号：US20050072941A1
公开(公告)日：2005-04-07
申请号：US10958141
申请日：2004-10-05
申请人： Sayaka Tanimoto , Yasunari Sohda , Yoshinori Nakayama , Osamu Kamimura , Haruo Yoda , Masaki Hosoda
发明人： Sayaka Tanimoto , Yasunari Sohda , Yoshinori Nakayama , Osamu Kamimura , Haruo Yoda , Masaki Hosoda
IPC分类号： G21K5/04 , G03F7/20 , H01J37/04 , H01J37/09 , H01J37/305 , H01J37/317 , H01L21/027 , H01J37/302
CPC分类号： H01J37/3177 , B82Y10/00 , B82Y40/00 , H01J37/04 , H01J37/317
摘要： Disclosed is equipment for charged-particle beam lithography capable of executing exposure even when an electron beam with a bad property is produced due to a failure in some multibeam forming element, without replacing the failing multibeam forming element and without reducing the exposure accuracy. The equipment includes means for forming a plurality of charged-particle beams arranged at predetermined intervals; a plurality of blankers which act on the plurality of charged-particle beams individually; a common blanker which acts on all of the plurality of charged-particle beams; and a blanking restriction for causing those charged-particle beams which are given predetermined deflection by the plurality of blankers to reach onto a sample, with a signal applied to the common blanker, and blocking those charged-particle beams which are not given the predetermined deflection by the plurality of blankers to the sample. The equipment blocks beams with bad properties to the sample and executes exposure using only those beams which have bad properties.
摘要翻译： 本发明公开了即使由于某些多波束形成元件的故障而产生具有不良特性的电子束也能够进行曝光的带电粒子束光刻设备，而不更换故障多波束形成元件而不降低曝光精度。 该设备包括用于形成以预定间隔布置的多个带电粒子束的装置; 分别作用在多个带电粒子束上的多个阻挡器; 作用于所有多个带电粒子束的常见消隐器; 以及消隐限制，用于使得由多个消隐器给予预定偏转的那些带电粒子束到达样本，信号施加到公共消隐器，并且阻挡未被给予预定偏转的那些带电粒子束 通过多个消隐器到样品。 设备阻挡样品性能不良的光束，并仅使用具有不良特性的光束执行曝光。
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2.发明授权公开(公告)号：US07105842B2
公开(公告)日：2006-09-12
申请号：US10958141
申请日：2004-10-05
申请人： Sayaka Tanimoto , Yasunari Sohda , Yoshinori Nakayama , Osamu Kamimura , Haruo Yoda , Masaki Hosoda
发明人： Sayaka Tanimoto , Yasunari Sohda , Yoshinori Nakayama , Osamu Kamimura , Haruo Yoda , Masaki Hosoda
IPC分类号： H01J37/302 , G03F7/20
CPC分类号： H01J37/3177 , B82Y10/00 , B82Y40/00 , H01J37/04 , H01J37/317
摘要： Disclosed is equipment for charged-particle beam lithography capable of executing exposure even when an electron beam with a bad property is produced due to a failure in some multibeam forming element, without replacing the failing multibeam forming element and without reducing the exposure accuracy. The equipment includes means for forming a plurality of charged-particle beams arranged at predetermined intervals; a plurality of blankers which act on the plurality of charged-particle beams individually; a common blanker which acts on all of the plurality of charged-particle beams; and a blanking restriction for causing those charged-particle beams which are given predetermined deflection by the plurality of blankers to reach onto a sample, with a signal applied to the common blanker, and blocking those charged-particle beams which are not given the predetermined deflection by the plurality of blankers to the sample. The equipment blocks beams with bad properties to the sample and executes exposure using only those beams which have bad properties.
摘要翻译： 本发明公开了即使由于某些多波束形成元件的故障而产生具有不良特性的电子束也能够进行曝光的带电粒子束光刻设备，而不更换故障多波束形成元件而不降低曝光精度。 该设备包括用于形成以预定间隔布置的多个带电粒子束的装置; 分别作用在多个带电粒子束上的多个阻挡器; 作用于所有多个带电粒子束的常见消隐器; 以及消隐限制，用于使得由多个消隐器给予预定偏转的那些带电粒子束到达样本，信号施加到公共消隐器，并且阻挡未被给予预定偏转的那些带电粒子束 通过多个消隐器到样品。 设备阻挡样品性能不良的光束，并仅使用具有不良特性的光束执行曝光。
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公开(公告)号：US20050072939A1
公开(公告)日：2005-04-07
申请号：US10957695
申请日：2004-10-05
IPC分类号： G01B11/00 , G03F7/20 , G03F9/00 , H01J37/304 , H01J37/305 , H01J37/317 , H01L21/027 , H01L21/68
CPC分类号： H01J37/3174 , B82Y10/00 , B82Y40/00 , H01J37/3045 , H01J2237/2482
摘要： The present invention provides a writing technique which can perform high-accuracy overlay writing in electron beam writing equipment performing mark detection by light. Electron beam writing equipment has an electron source; an electron optical system illuminating an electron beam emitted from the electron source onto a sample for scanning to form a desired pattern on the sample; a stage mounting the sample; a mark substrate provided on the stage; means beaming a light beam for position detection which is on the same side as the illumination direction of the electron beam for illuminating the mark substrate; light detection means which is on the same side as the means beaming a light beam for detecting reflected light reflected on the mark substrate; and electron detection means which is on the side opposite the light detection means with respect to the mark substrate for detecting a transmitted electron obtained by illumination of the electron beam onto the mark substrate, wherein relative position information of the light beam and the electron beam is obtained based on the signals of the detected reflected light and transmitted electron.
摘要翻译： 本发明提供了一种写入技术，其能够通过光执行标记检测的电子束写入设备中执行高精度重叠写入。 电子束写入设备具有电子源; 电子光学系统将从电子源发射的电子束照射到样品上以进行扫描以在样品上形成所需图案; 安装样品的阶段; 设置在台上的标记基板; 意味着将用于位置检测的光束照射在与用于照射标记基板的电子束的照射方向相同的一侧; 光检测装置与发出用于检测在标记基板上反射的反射光的光束相同的一侧; 以及电子检测装置，其相对于用于检测通过将电子束照射到标记基板上而获得的透射电子的标记基板在与光检测装置相反的一侧，其中光束和电子束的相对位置信息为 基于检测到的反射光和透射电子的信号获得。
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公开(公告)号：US07098464B2
公开(公告)日：2006-08-29
申请号：US10957695
申请日：2004-10-05
IPC分类号： H01J37/304
CPC分类号： H01J37/3174 , B82Y10/00 , B82Y40/00 , H01J37/3045 , H01J2237/2482
摘要： The present invention provides a writing technique which can perform high-accuracy overlay writing in electron beam writing equipment performing mark detection by light.Electron beam writing equipment has an electron source; an electron optical system illuminating an electron beam emitted from the electron source onto a sample for scanning to form a desired pattern on the sample; a stage mounting the sample; a mark substrate provided on the stage; means beaming a light beam for position detection which is on the same side as the illumination direction of the electron beam for illuminating the mark substrate; light detection means which is on the same side as the means beaming a light beam for detecting reflected light reflected on the mark substrate; and electron detection means which is on the side opposite the light detection means with respect to the mark substrate for detecting a transmitted electron obtained by illumination of the electron beam onto the mark substrate, wherein relative position information of the light beam and the electron beam is obtained based on the signals of the detected reflected light and transmitted electron.
摘要翻译： 本发明提供了一种写入技术，其能够通过光执行标记检测的电子束写入设备中执行高精度重叠写入。 电子束写入设备具有电子源; 电子光学系统将从电子源发射的电子束照射到样品上以进行扫描以在样品上形成所需图案; 安装样品的阶段; 设置在台上的标记基板; 意味着将用于位置检测的光束照射在与用于照射标记基板的电子束的照射方向相同的一侧; 光检测装置与发出用于检测在标记基板上反射的反射光的光束相同的一侧; 以及电子检测装置，其相对于用于检测通过将电子束照射到标记基板上而获得的透射电子的标记基板在与光检测装置相反的一侧，其中光束和电子束的相对位置信息为 基于检测到的反射光和透射电子的信号获得。
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公开(公告)号：US5283440A
公开(公告)日：1994-02-01
申请号：US770527
申请日：1991-10-03
申请人： Yasunari Sohda , Hideo Todokoro , Norio Saitou , Haruo Yoda , Hiroyuki Itoh , Hiroyuki Shinada , Yoshinori Nakayama , Shinji Okazaki
发明人： Yasunari Sohda , Hideo Todokoro , Norio Saitou , Haruo Yoda , Hiroyuki Itoh , Hiroyuki Shinada , Yoshinori Nakayama , Shinji Okazaki
IPC分类号： H01J37/317 , H01J37/30
CPC分类号： B82Y10/00 , B82Y40/00 , H01J37/3174 , H01J2237/049 , H01J2237/1532 , H01J2237/30455 , H01J2237/31776
摘要： An electron beam writing system is used in variable shaping and cell projection methods to produce LSI and reticles. In the cell projection method, the beam is deflected to define a writing position. In the time it takes to define the writing position, an operation of forming the beam is concluded, which operation includes the deflection of the beam to select a cell graphic, re-deflection for correcting the origin position of the written graphic, astigmatism correction of the written graphic, and focus correction for reducing the Coulomb effect. An electrostatic deflector is used as the deflector for the cell graphic selection. The arrangement of graphics includes a square aperture centrally located with a group of cell projection apertures positioned adjacent two sides of the square aperture.
摘要翻译： 电子束写入系统用于可变整形和电池投影方法以产生LSI和光罩。 在单元投影方法中，光束被偏转以限定写入位置。 在定义写入位置的时候，结束了形成光束的操作，其操作包括光束的偏转以选择单元图形，用于校正写入图形的原点位置的重新偏转，散光校正 书面图形和焦点校正，以减少库仑效应。 静电偏转器用作细胞图形选择的偏转器。 图形的布置包括中心定位的方孔，其中一组单元突出孔定位成邻近正方形孔的两侧。
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公开(公告)号：US07423274B2
公开(公告)日：2008-09-09
申请号：US11355952
申请日：2006-02-17
IPC分类号： A61N5/00
CPC分类号： H01J37/3045 , B82Y10/00 , B82Y40/00 , H01J37/3177 , H01J2237/3045
摘要： An electron beam writing technology which enables highly accurate deflection correction of a minute field used in an electron beam writing system is provided. In this system, a function to move an electron beam by a deflection means through high-speed deflection scanning so as to repeat formation of a cyclic patterned electron beam and a function to move the patterned electron beam on cyclic correction marks by the deflection means through low-speed deflection scanning in synchronization with one cycle of the repetition are provided, and reflected electrons or secondary electrons emitted from the correction marks and the vicinity thereof or transmitted electrons transmitted through the correction marks in the low-speed deflection scanning are detected so as to correct the position or deflection amount of the electron beam based on the detection result.
摘要翻译： 提供一种电子束写入技术，其能够对电子束写入系统中使用的微小场进行高精度的偏转校正。 在该系统中，通过偏转装置通过高速偏转扫描来移动电子束以便重复形成循环图案化电子束的功能，以及通过偏转装置通过偏转装置将图案化电子束移动到循环校正标记上的功能，通过 提供与重复的一个周期同步的低速偏转扫描，检测从校正标记及其附近发射的反射电子或二次电子或在低速偏转扫描中透过校正标记的透射电子，以便 基于检测结果校正电子束的位置或偏转量。
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公开(公告)号：US20060197453A1
公开(公告)日：2006-09-07
申请号：US11355952
申请日：2006-02-17
IPC分类号： H01K1/62
CPC分类号： H01J37/3045 , B82Y10/00 , B82Y40/00 , H01J37/3177 , H01J2237/3045
摘要： An electron beam writing technology which enables highly accurate deflection correction of a minute field used in an electron beam writing system is provided. In this system, a function to move an electron beam by a deflection means through high-speed deflection scanning so as to repeat formation of a cyclic patterned electron beam and a function to move the patterned electron beam on cyclic correction marks by the deflection means through low-speed deflection scanning in synchronization with one cycle of the repetition are provided, and reflected electrons or secondary electrons emitted from the correction marks and the vicinity thereof or transmitted electrons transmitted through the correction marks in the low-speed deflection scanning are detected so as to correct the position or deflection amount of the electron beam based on the detection result.
摘要翻译： 提供一种电子束写入技术，其能够对电子束写入系统中使用的微小场进行高精度的偏转校正。 在该系统中，通过偏转装置通过高速偏转扫描来移动电子束以便重复形成循环图案化电子束的功能，以及通过偏转装置通过偏转装置将图案化电子束移动到循环校正标记上的功能，通过 提供与重复的一个周期同步的低速偏转扫描，检测从校正标记及其附近发射的反射电子或二次电子或在低速偏转扫描中透过校正标记的透射电子，以便 基于检测结果校正电子束的位置或偏转量。
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公开(公告)号：US07015482B2
公开(公告)日：2006-03-21
申请号：US10354959
申请日：2003-01-31
CPC分类号： H01J37/3177 , B82Y10/00 , B82Y40/00 , H01J37/304 , H01J2237/043 , H01J2237/24405
摘要： An electron beam writing system, using discrete electron beams in which the interval of the beams is larger than the size of the beams, generates plural electron beams, on/off controls each of the electron beams according to pattern data to be written, and deflects the electron beams together, thereby performing writing on a wafer. One side of a unit writing area of the electon beams is larger than substantially twice the interval of the electron beams or substantially an integral multiple thereof.
摘要翻译： 一种电子束写入系统，使用离散电子束，其中光束的间隔大于光束的大小，产生多个电子束，根据要写入的图形数据，对每个电子束进行开/关控制，并偏转 电子束在一起，从而在晶片上进行写入。 电子束的单位写入区域的一侧大于电子束的间隔的两倍或其基本上的整数倍。
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公开(公告)号：US08268209B2
公开(公告)日：2012-09-18
申请号：US11623776
申请日：2007-01-17
申请人： Masahiko Ogino , Akihiro Miyauchi , Takashi Ando , Chiseki Haginoya , Susumu Komoriya , Yasunari Sohda , Souichi Katagiri , Hiroya Ohta , Yoshinori Nakayama
发明人： Masahiko Ogino , Akihiro Miyauchi , Takashi Ando , Chiseki Haginoya , Susumu Komoriya , Yasunari Sohda , Souichi Katagiri , Hiroya Ohta , Yoshinori Nakayama
IPC分类号： H01L23/544
CPC分类号： H01L21/76838 , B82Y10/00 , B82Y40/00 , G03F7/0002 , G03F9/7076 , G11B5/855 , H01L23/544 , H01L2223/54453 , H01L2924/0002 , H01L2924/00
摘要： In a mold in which a pattern is formed of a fine concavo-convex shape, two or more of alignment marks for determining a relative positional relation between a substrate and a mold are formed concentrically. Moreover, a damaged mark is identified from the positional information and shape of the respective marks, and an alignment between the mold and the substrate to which a resin film is applied is carried out excluding the damaged mark.
摘要翻译： 在图案形成为微细凹凸形状的模具中，同心地形成用于确定基板和模具之间的相对位置关系的两个或更多个对准标记。 此外，根据各个标记的位置信息和形状来识别损坏的标记，并且除了损坏的标记之外，执行模具和施加了树脂膜的基板之间的对准。
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公开(公告)号：US07750296B2
公开(公告)日：2010-07-06
申请号：US11866426
申请日：2007-10-03
CPC分类号： H01J37/28 , H01J37/265 , H01J2237/2826
摘要： In method and apparatus for obtaining a scanning electron microscope image devoid of distortion by measuring a scanning distortion and calibrating the scanning distortion, there occurs a problem that an error takes place in dimension control owing to a scanning distortion of an electron beam. To cope with this problem, an image is obtained by scanning a predetermined region with the electron beam, a plurality of regions are selected from the image, the pattern pitch is measured in each of the regions and a scanning distortion amount is calculated from the result of measurement and then corrected.
摘要翻译： 在通过测量扫描失真和校准扫描失真来获得没有失真的扫描电子显微镜图像的方法和装置中，存在由于电子束的扫描失真引起的尺寸控制中出现误差的问题。 为了解决这个问题，通过用电子束扫描预定区域来获得图像，从图像中选择多个区域，在每个区域中测量图案间距，并根据结果计算扫描失真量 的测量，然后校正。
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