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    • 2. 发明公开
    • MULTI-BEAM WRITING OF PATTERN AREAS OF RELAXED CRITICAL DIMENSION
    • MEHRSTRAHLIGES SCHREIBEN VON MUSTERBEREICHEN RELAXIERTER KRITISCHER DIMENSIONEN
    • EP3070528A1
    • 2016-09-21
    • EP16160622.3
    • 2016-03-16
    • IMS Nanofabrication AG
    • Platzgummer, ElmarSchiessl, Klaus
    • G03F7/20H01J37/04H01J37/28H01J37/317H01J37/302
    • G03F7/70466H01J37/3026H01J37/3177H01J2237/0435H01J2237/31764H01J2237/31769
    • To irradiate a target with a beam of energetic electrically charged particles, the beam is formed and imaged onto a target, where it generates a pattern image composed of pixels. For a pattern which comprises a primary pattern region (102) to be written with a predetermined primary feature size and a secondary pattern region (103) which is composed of structure features capable of being written with a secondary feature size, larger than the primary feature size. The structure features of the primary pattern region (102) are written by exposing a plurality of exposure spots on grid positions of a first exposure grid; the structure features in the secondary pattern region (103) are written by exposing a plurality of exposure spots on grid positions of a second exposure grid (164) according to a second arrangement which is coarser than the regular arrangement of the first exposure grid.
    • 为了用能量带电的粒子束照射目标,该束被形成并成像到目标上,其中它产生由像素构成的图案图像。 对于包括要写入预定主要特征尺寸的主要图案区域(102)和由能够被写入次要特征尺寸的结构特征组成的次要图案区域(103)的图案,大于主要特征 尺寸。 通过在第一曝光网格的网格位置上暴露多个曝光点来写入主图案区域(102)的结构特征; 根据比第一曝光栅格的规则排列更粗糙的第二布置,通过在第二曝光栅格(164)的栅格位置上暴露多个曝光点来写入二次图案区域(103)中的结构特征。
    • 3. 发明公开
    • Charged-particle multi-beam apparatus having correction plate
    • Vorrichtung mit programmierbarer Filterplattefürmehrere geladene Teilchenstrahlen
    • EP2854154A1
    • 2015-04-01
    • EP14184208.8
    • 2014-09-10
    • IMS Nanofabrication AG
    • Platzgummer, Elmar
    • H01J37/317
    • H01J37/3177H01J37/045H01J37/1472H01J2237/0435H01J2237/1501H01J2237/30455
    • In a pattern definition device (7) for a charged-particle multi-beam processing or inspection apparatus comprises a deflection array device (52) with an aperture array field for blanking a plurality of beamlets. The deflection array device comprises a plurality of deflection devices (521, 501), each associated with a respective opening (520) and comprising at least one electrostatic electrode (522, 523, 502) for deflecting, when activated, the beamlet traversing the opening off its nominal path. However, one or more deflection devices (501) may be defective, permanently unable to deflect their respective beamlets (b'). To correct these "non-deflected beamlets" (b') the pattern definition device (7) comprises a filtering device (53) having openings (70) allowing passage of beamlets where the respective deflection devices (521) are operative, and at least one obstructing device (71, 74) which is programmable to permanently assume an obstructing state (74) where it prevents the respective non-deflected beamlets (b') from traversing the pattern definition device (7) along their respective nominal paths downstream of the pattern definition device.
    • 在用于带电粒子多光束处理或检查装置的图案定义装置(7)中包括具有用于消隐多个子束的孔径阵列场的偏转阵列装置(52)。 偏转阵列装置包括多个偏转装置(521,501),每个偏转装置分别与相应的开口520相连并且包括至少一个静电电极522,523,502,用于当被激活时偏转穿过开口的小梁 脱离其名义路径。 然而,一个或多个偏转装置(501)可能是有缺陷的,永久地不能偏转它们各自的子束(b')。 为了校正这些“非偏转子束”(b'),图案定义装置(7)包括具有开口(70)的过滤装置(53),允许各个偏转装置(521)可操作地通过子束,并且至少 一个阻塞装置(71,74),其可编程以永久地呈现阻挡状态(74),其中防止相应的非偏转子束(b')沿其相应的标称路径沿着相应的标称路径横穿图案定义装置(7) 图案定义装置。
    • 6. 发明公开
    • Constant current multi-beam patterning
    • Strahlen und konstantem Strom,Strukturierung mit mehreren
    • EP2190003A2
    • 2010-05-26
    • EP09450212.7
    • 2009-11-05
    • IMS Nanofabrication AG
    • Fragner, HeinrichPlatzgummer, ElmarBürli, Adrian
    • H01J37/317
    • H01J37/3177B82Y10/00B82Y40/00Y10S430/143
    • The invention relates to a method for forming a pattern on a substrate surface of a target by means of a beam of electrically charged particles in a number of exposure steps, where the beam is split into a patterned beam and there is a relative motion between the substrate and the pattern definition means. This results in an effective overall motion of the patterned particle beam over the substrate surface and exposition of image elements on the substrate surface in each exposure step, wherein the image elements on the target are exposed to the beamlets multiply, namely several times during a number of exposure steps according to a specific sequence. The sequence of exposure steps of the image elements is arranged in a non-linear manner according to a specific rule from one exposure step to the subsequent exposure step in order to reduce the current variations in the optical column of the multibeam exposure apparatus during the exposure of the pattern.
    • 本发明涉及一种通过多个曝光步骤中带电粒子的光束(1b)在靶(13)的衬底表面上形成图案的方法,其中光束被分成图案化光束(pb ),并且在衬底(13)和图案定义装置(3)之间存在相对运动。 这导致图案化粒子束在衬底表面上的有效整体运动,并且在每个曝光步骤中在衬底表面上曝光图像元素,其中靶上的图像元素暴露于子束,在数字期间被多次曝光 的曝光步骤。 根据从一个曝光步骤到随后的曝光步骤的特定规则,图像元素的曝光步骤的顺序以非线性方式布置,以便减少多光束曝光设备(1)的光学柱中的电流变化, 在图案的曝光期间。