MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS AND METHOD FOR PRODUCING MICROSTRUCTURED COMPONENTS
    71.
    发明申请
    MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS AND METHOD FOR PRODUCING MICROSTRUCTURED COMPONENTS 审中-公开
    微结构投影曝光装置及其生产微结构元件的方法

    公开(公告)号:US20080204692A1

    公开(公告)日:2008-08-28

    申请号:US12054991

    申请日:2008-03-25

    IPC分类号: G03B27/72 G03B27/54

    摘要: A method for producing microstructured components in a microlithographic projection exposure apparatus is disclosed. The method includes imaging a pattern of structures into an image plane of a projection objective. The dose distribution of projection light in the image plane can be influenced so that the image of a structure is at least essentially independent of the topography of structures which lie inside a region surrounding the structure.

    摘要翻译: 公开了一种在微光刻投影曝光装置中制造微结构元件的方法。 该方法包括将结构图案成像到投影物镜的像平面中。 可以影响投影光在图像平面中的剂量分布,使得结构的图像至少基本上独立于位于围绕结构的区域内的结构的形貌。

    Method of optimizing an objective with fluoride crystal lenses, and objective with fluoride crystal lenses
    72.
    发明授权
    Method of optimizing an objective with fluoride crystal lenses, and objective with fluoride crystal lenses 失效
    氟化物晶体透镜优化目标的方法,以及氟化物晶体透镜的目标

    公开(公告)号:US07321465B2

    公开(公告)日:2008-01-22

    申请号:US11071699

    申请日:2005-03-02

    IPC分类号: G02B27/28

    摘要: A numerical optimizing method serves to reduce harmful effects caused by intrinsic birefringence in lenses of a fluoride crystal material of cubic crystal structure in an objective, particularly a projection objective for a microlithography system. Under the optimizing method, an optimizing function which takes at least one birefringence-related image aberration into account is minimized. The birefringence-related image aberration is determined from a calculation for a light ray passing through the fluoride crystal lenses. To the extent that the birefringence-related image aberration is a function of parameters of the light ray, it depends only on geometric parameters of the light ray. The numerical optimizing method is used to produce objectives in which an optical retardation as well as an asymmetry of the optical retardation are corrected. The lenses are arranged in homogeneous groups, where each homogeneous group is corrected for the optical retardation asymmetry.

    摘要翻译: 数值优化方法用于减少物镜中的立方晶体结构的氟化物晶体材料的透镜中的固有双折射引起的有害影响,特别是微光刻系统的投影物镜。 在优化方法下,考虑到至少一个双折射相关图像像差的优化函数被最小化。 从通过氟化物晶体透镜的光线的计算确定双折射相关图像像差。 在双折射相关图像像差是光线参数的函数的程度上,其仅取决于光线的几何参数。 使用数值优化方法来产生其中光学延迟以及光学延迟的不对称性被校正的目标。 透镜被排列成均匀的组,其中每个均匀组被校正用于光学延迟不对称。

    PROJECTION EXPOSURE APPARATUS AND METHOD FOR OPERATING THE SAME
    73.
    发明申请
    PROJECTION EXPOSURE APPARATUS AND METHOD FOR OPERATING THE SAME 有权
    投影曝光装置及其操作方法

    公开(公告)号:US20080002167A1

    公开(公告)日:2008-01-03

    申请号:US11427183

    申请日:2006-06-28

    IPC分类号: G03B27/42 G02B9/00

    摘要: The invention concerns a method for operating a projection exposure apparatus to project the image of a structure of an object (5) arranged in an object plane (6) onto a substrate (10) arranged in an image plane (8). The object (5) is illuminated with light of an operating wavelength of the projection exposure apparatus according to one of several adjustable exposure modes. The light produces changes in at least one optical element (9) of the projection exposure apparatus, by which the optical properties of the projection exposure apparatus are influenced. The operation of the projection exposure apparatus makes allowance for the influencing of the optical properties of the projection exposure apparatus or a quantity dependent on the former, being calculated approximately on the basis of the exposure mode used and the structure of the object (5).

    摘要翻译: 本发明涉及一种用于操作投影曝光装置以将布置在物平面(6)中的物体(5)的结构的图像投影到布置在图像平面(8)中的基板(10)上的方法。 根据多种可调曝光模式之一,物体(5)被投影曝光装置的工作波长的光照射。 该光在投影曝光装置的至少一个光学元件(9)中产生变化,由此影响投影曝光装置的光学特性。 投影曝光装置的操作允许基于所使用的曝光模式和对象(5)的结构大致计算投影曝光装置的光学特性或取决于前者的光学特性的影响。

    Projection lens for a microlithographic projection exposure apparatus
    74.
    发明授权
    Projection lens for a microlithographic projection exposure apparatus 失效
    用于微光刻投影曝光装置的投影透镜

    公开(公告)号:US07068436B2

    公开(公告)日:2006-06-27

    申请号:US10878611

    申请日:2004-06-29

    IPC分类号: G02B13/24

    摘要: A projection lens (10) for a microlithographic projection exposure apparatus has a first optical element, for example a birefringent lens (L2), that has polarization dependent properties causing intensity fluctuations in an image plane of the projection lens. These fluctuation may be produced by a second optical element (24), for example a polarization selective beam splitting layer (28), that is arranged downstream of the first optical element. A gray filter (32; 132; 232) disposed in the beam path reduces the intensity fluctuations.

    摘要翻译: 用于微光刻投影曝光装置的投影透镜(10)具有第一光学元件(例如双折射透镜(L 2)),其具有导致投影透镜的图像平面中的强度波动的偏振相关特性。 这些波动可以由布置在第一光学元件下游的第二光学元件(24)产生,例如偏振选择分束层(28)。 设置在光束路径中的灰色滤光器(32; 132; 232)减小了强度波动。

    Optical system of a microlithographic projection exposure apparatus
    75.
    发明申请
    Optical system of a microlithographic projection exposure apparatus 有权
    微光刻投影曝光装置的光学系统

    公开(公告)号:US20060023179A1

    公开(公告)日:2006-02-02

    申请号:US11190555

    申请日:2005-07-27

    IPC分类号: G03B27/42

    摘要: In a method for improving imaging properties of an illumination system or a projection objective of a microlithographic projection exposure apparatus, which comprises an optical element having a surface, the shape of the surface is measured directly at various points. To this end, a measuring beam is directed on the points, and the reflected or refracted beam is measured, e.g. using an interferometer. Based on deviations of the measured shape from a target shape, corrective measures are derived so that the imaging errors of the optical system are improved. The corrective measures may comprise a change in the position or the shape of the optical element being analyzed, or another optical element of the optical system. The target shape of the surface may, for example, be determined so that the optical element at least partially corrects imaging errors caused by other optical elements.

    摘要翻译: 在用于改善包括具有表面的光学元件的微光刻投影曝光装置的照明系统或投影物镜的成像特性的方法中,直接在各个点测量表面的形状。 为此,测量光束被引导到这些点上,并且测量反射或折射的光束。 使用干涉仪。 基于测量形状与目标形状的偏差,导出校正措施,使得光学系统的成像误差得到改善。 校正措施可以包括被分析的光学元件的位置或形状的改变,或光学系统的另一个光学元件的变化。 例如,可以确定表面的目标形状,使得光学元件至少部分地校正由其它光学元件引起的成像误差。

    Catadioptric projection objective
    79.
    发明授权
    Catadioptric projection objective 有权
    反射折射投影物镜

    公开(公告)号:US08446665B2

    公开(公告)日:2013-05-21

    申请号:US12562693

    申请日:2009-09-18

    IPC分类号: G02B5/08

    摘要: Catadioptric projection objective (1) for microlithography for imaging an object field (3) in an object plane (5) onto an image field (7) in an image plane (9). The objective includes a first partial objective (11) imaging the object field onto a first real intermediate image (13), a second partial objective (15) imaging the first intermediate image onto a second real intermediate image (17), and a third partial objective (19) imaging the second intermediate image onto the image field. The second partial objective is a catadioptric objective having exactly one concave mirror and having at least one lens (L21, L22). A first folding mirror (23) deflects the radiation from the object plane toward the concave mirror and a second folding mirror (25) deflects the radiation from the concave mirror toward the image plane. At least one surface of a lens (L21, L22) of the second partial objective has an antireflection coating having a reflectivity of less than 0.2% for an operating wavelength of between 150 nm and 250 nm and for an angle-of-incidence range of between 0° and 30°. As an alternative or in addition, all the surfaces of the lenses of the second partial objective are configured such that the deviation from the marginal ray concentricity is greater than or equal to 20°.

    摘要翻译: 用于微光刻的反折射投影物镜(1),用于将物平面(5)中的物场(3)成像到图像平面(9)中的图像场(7)上。 该目的包括将对象场成像到第一实际中间图像(13)上的第一部分目标(11),将第一中间图像成像到第二实际中间图像(17)上的第二部分目标(15) 物镜(19)将第二中间图像成像到图像场上。 第二部分目标是具有恰好一个凹面镜并具有至少一个透镜(L21,L22)的反射折射物镜。 第一折叠镜(23)将来自物体平面的辐射偏转到凹面镜,并且第二折叠镜(25)将来自凹面镜的辐射偏转到图像平面。 第二部分物镜的透镜的至少一个表面(L21,L22)具有对于150nm至250nm的工作波长具有小于0.2%的反射率的抗反射涂层,并且对于 介于0°和30°之间。 作为替代或另外,第二部分物镜的透镜的所有表面被配置为使得与边缘射线同心度的偏差大于或等于20°。