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    • 6. 发明申请
    • IMAGING OPTICS AND PROJECTION EXPOSURE INSTALLATION FOR MICROLITHOGRAPHY WITH AN IMAGING OPTICS OF THIS TYPE
    • 使用这种类型的成像光学的成像光学和投影曝光安装
    • WO2010099899A1
    • 2010-09-10
    • PCT/EP2010/001203
    • 2010-02-26
    • CARL ZEISS SMT AGMANN, Hans-Jürgen
    • MANN, Hans-Jürgen
    • G02B17/06G03F7/20
    • G03F7/70233G02B17/0652G02B17/0657
    • An imaging optics (7) has at least six mirrors (Ml to M8), which image an object field (4) in an object plane (5) in an image field (8) in an image plane (9). An entry pupil of the imaging optics (7) is arranged in the imaging beam path in front of the object field (4). At least one of the mirrors (M7, M8) has a through-opening (19) for the passage of imaging light (3). A mechanically accessible pupil, in which an obscuration stop (20) is arranged for the central shading of the pupil of the imaging optics (7), is located in a pupil plane (17) in the imaging beam path between the object field (4) and a first of the through-openings (19). A first imaging part beam (24) directly after a second mirror (M2) in the imaging beam path after the object field (4) and a second imaging part beam (25) directly after a fourth mirror (M4) in the imaging beam path after the object field (4) intersect one another in an intersection region (26). The result is an imaging optics, in which a handleable combination of small imaging errors, manageable production and a good throughput for the imaging light is achieved.
    • 成像光学器件(7)具有至少六个镜(M1至M8),其对图像平面(9)中的图像场(8)中的物体平面(5)中的物体场(4)进行成像。 成像光学器件(7)的入射光瞳被布置在物场(4)前面的成像光束路径中。 至少一个反射镜(M7,M8)具有用于成像光(3)通过的通孔(19)。 一种机械可访问的瞳孔,其中设置用于成像光学器件(7)的瞳孔的中心阴影的遮挡止挡件(20),位于成像光束路径中的物镜(4)之间的瞳孔平面(17)中, )和第一通孔(19)。 第一成像部分光束(24)直接在成像光束路径中的第二反射镜(M2)之后的物场(4)和第二成像部分光束(25)之间,直接在成像光束路径中的第四反射镜(M4)之后 在对象字段(4)在交叉区域(26)中彼此相交之后。 结果是成像光学器件,其中实现了成像光的小成像误差,可管理生产和良好生产量的可处理组合。
    • 7. 发明申请
    • IMAGING OPTICAL SYSTEM
    • 成像光学系统
    • WO2010028748A1
    • 2010-03-18
    • PCT/EP2009/006171
    • 2009-08-26
    • CARL ZEISS SMT AGMANN, Hans-JürgenSCHÖPPACH, ArminZELLNER, Johannes
    • MANN, Hans-JürgenSCHÖPPACH, ArminZELLNER, Johannes
    • G02B17/06G02B5/10G02B7/182G03F7/20
    • G03F7/702G02B7/181G02B17/0657G02B17/0663G02B21/04G02B26/06G02B26/0825G03F7/70233G03F7/70266
    • An imaging optical system (31) with a plurality of mirrors (Ml to M6), which image an object field (4) in an object plane (5) into an image field (8) in an image plane (9), according to either one of the following configurations : a) a connecting axis (32), which is perpendicular to the object plane (5) and runs through the geometric centre point of the mirror (M2), which is spatially most closely adjacent to the object field (4), the mirror (M2) most closely adjacent to the object field (4), is arranged at a spacing (A) from the object field (4), which is greater than a spacing (B) of an entry pupil plane (30) of the imaging optical system (31), said pupil plane (30) lying in the beam path of the imaging light (3) upstream of the object field (4), from the object field (4); b) - with an entry pupil plane (30), which lies in the beam path of the imaging light (30) upstream of the object field (4), wherein the imaging light (3) is reflected on the object plane (5), - with a connecting axis (32) which is perpendicular to the object plane (5) and runs through the geometric centre point of the entry pupil, - wherein an intersection point (C) of the connecting axis (32) with the entry pupil plane (30) is closer to the object plane (5) than a first intersection point (D) in the beam path of the imaging light (3) downstream of the object field (4), of a main beam (33) of a central object field point with the connecting axis (32), - wherein at least one of the mirrors (M5, M6) has a through-opening (18, 19) for imaging light (3) to pass through; c) the imaging optical system (7; 31), spaced apart from a first mirror (M5), which is most closely adjacent to one of the two fields (4, 8) and is designated a neighbouring mirror, has a deformable further mirror (M3), which is arranged in a plane, which is optically conjugated to an arrangement plane of the neighbouring mirror (M5) in the imaging optical system (7; 31); d) a support body (21) of a mirror (M5), which is most closely adjacent to one of the two fields (4, 8), of the neighbouring mirror, is made of a material, the modulus of elasticity of which is at least twice as great as the modulus of elasticity of the material of the support body (22) of at least one of the other mirrors (M 1 to M4, M6).
    • 一种具有多个反射镜(M1至M6)的成像光学系统(31),其将目标平面(5)中的物体场(4)成像到图像平面(9)中的图像场(8),根据 以下配置之一:a)垂直于物平面(5)并穿过反射镜(M2)的几何中心点的连接轴线(32),空间上最接近物体场 (4)中,与物场(4)最紧密相邻的反射镜(M2)以与入射光瞳面(B)的间隔(B)大的距离物距离(A)的距离(A) (30)在所述物场(4)的上游位于所述成像光(3)的光束路径中的所述成像光学系统(31)的所述光束平面(30)中。 b) - 具有入射光瞳平面(30),其位于物场(4)上游的成像光(30)的光束路径中,其中成像光(3)在物平面(5)上被反射, - 具有垂直于物平面(5)并穿过入射光瞳的几何中心点的连接轴线(32),其中连接轴线(32)与入射光瞳的交点(C) 平面(30)比物位(4)下游的成像光(3)的光束路径中的第一交点(D)更靠近物平面(5),主光束 具有连接轴(32)的中心物体场点, - 其中至少一个反射镜(M5,M6)具有用于使光(3)成像通过的通孔(18,19) c)与第二反射镜(M5)间隔开的成像光学系统(7; 31),其与两个场(4,8)中的一个最接近并被指定为相邻的反射镜,具有可变形的另外的反射镜 (M3),其布置在与所述成像光学系统(7; 31)中的相邻反射镜(M5)的配置平面光学共轭的平面中; d)与邻近反射镜的两个场(4,8)中的一个最紧密相邻的反射镜(M5)的支撑体(21)由材料制成,其弹性模量为 是至少一个其它反射镜(M 1至M4,M6)的支撑体(22)的材料的弹性模量的至少两倍。
    • 8. 发明申请
    • PROJECTION OBJECTIVE FOR MICROLITHOGRAPHY
    • 投影目标的微观算法
    • WO2009115180A1
    • 2009-09-24
    • PCT/EP2009/001448
    • 2009-02-28
    • CARL ZEISS SMT AGZELLNER, JohannesMANN, Hans-JürgenENDRES, Martin
    • ZELLNER, JohannesMANN, Hans-JürgenENDRES, Martin
    • G03F7/20
    • G03F7/70316G02B17/0663G03F7/702G03F7/70233
    • A projection objective (7) for microlithography is used for imaging an object field (4) in an object plane (5) into an image field (8) in an image plane (9). The projection objective (7) comprises at least six mirrors (M1 to M6) of which at least one mirror has a freeform reflecting surface. According to one aspect of the invention, the ratio between an overall length (T) of the projection objective (7) and an object image shift (d OIS ) is smaller than 12. According to another aspect of the invention, the image plane (9) is the first field plane of the projection objective (7) downstream of the object plane (5). According to another aspect of the invention, the projection objective has a plurality of mirrors (M1 to M6), wherein the ratio between an overall length (T) and an object image shift (d OIS ) is smaller than 2.
    • 用于微光刻的投影物镜(7)用于将物平面(5)中的物场(4)成像为图像平面(9)中的图像场(8)。 投影物镜(7)包括至少六个反射镜(M1至M6),其中至少一个反射镜具有自由形反射表面。 根据本发明的一个方面,投影物镜(7)的总长(T)与物体像偏移(dOIS)之间的比率小于12.根据本发明的另一方面,图像平面(9 )是物平面(5)下游的投影物镜(7)的第一场平面。 根据本发明的另一方面,投影物镜具有多个反射镜(M1至M6),其中总长度(T)和物体图像偏移(dOIS)之间的比率小于2。
    • 9. 发明申请
    • IMAGING OPTICAL SYSTEM AND PROJECTION EXPOSURE INSTALLATION FOR MICRO-LITHOGRAPHY WITH AN IMAGING OPTICAL SYSTEM OF THIS TYPE
    • 用这种类型的成像光学系统进行微成像的成像光学系统和投影曝光安装
    • WO2009052932A1
    • 2009-04-30
    • PCT/EP2008/008381
    • 2008-10-02
    • CARL ZEISS SMT AGMANN, Hans-Jürgen
    • MANN, Hans-Jürgen
    • G03F7/20G02B17/00
    • G03F7/702G02B17/02G02B17/0652G03F7/70058G03F7/70225G03F7/70233G03F7/70275
    • An imaging optical system (7) comprises a plurality of mirrors (Ml to M8), which image an object field (4) in an object plane (5) into an image field (8) in an image plane (9). At least one of the mirrors (M6, M7, M8) is obscured, and thus has a through-opening (21) for imaging light (15) to pass through. The fourth-last mirror (M5) in the light path before the image field (8) is not obscured and provides, with an outer edge (22) of the optically effective reflection surface thereof, a central shadowing in a pupil plane (17) of the imaging optical system (7). The distance between the fourth-last mirror (M5) and the last mirror (M8) is at least 10 % of the distance between the object field (4) and the image field (8). An intermediate image plane (23), which is closest to the image plane (9), is arranged between the last mirror (M8) and the image plane (9). The imaging optical system (7) has a numerical aperture of 0.9. These measures, not all of which must be effected simultaneously, lead to an imaging optical system with improved imaging properties and/or reduced production costs.
    • 成像光学系统(7)包括将物体平面(5)中的物体场(4)成像到图像平面(9)中的图像场(8)中的多个反射镜(M1至M8)。 至少一个反射镜(M6,M7,M8)被遮蔽,因此具有用于使光(15)成像通过的通孔(21)。 在图像场(8)之前的光路中的第四后镜(M5)不被遮蔽,并且在其光学有效反射表面的外边缘(22)处提供瞳平面(17)中的中心阴影, 的成像光学系统(7)。 第四镜(M5)和最后镜(M8)之间的距离至少为物场(4)与图像场(8)之间距离的10%。 最靠近图像平面(9)的中间像平面(23)布置在最后一个反射镜(M8)和图像平面(9)之间。 成像光学系统(7)的数值孔径为0.9。 这些措施,并不是所有这些都必须同时进行,导致成像光学系统具有改进的成像性能和/或降低生产成本。