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    • 1. 发明申请
    • CATADIOPTRIC REDUCTION LENS HAVING A POLARIZATION BEAMSPLITTER
    • 阴极减光透镜具有偏振光束
    • WO2004019105A1
    • 2004-03-04
    • PCT/EP2002/011022
    • 2002-10-02
    • CARL ZEISS SMT AGZACZEK, ChristophMÜLDERS, Thomas
    • ZACZEK, ChristophMÜLDERS, Thomas
    • G02B17/08
    • G02B17/0892G02B17/08G02B27/283G03F7/70225
    • A catadioptric projection lens having a catadioptric lens section and a dioptric lens section is disclosed. Its catadioptric lens section comprises a concave mirror and a beam-deflecting device, which, in the case of one embodiment, comprises a physical beamsplitter having a polarization-beamsplitting surface, followed by a deflecting mirror. The reflectance curve of that beamsplitting surface for s-polarized light, and the reflectance of the deflecting mirror for lignt coming from the beamsplitter are adapted to suit one another such that large variations in that transmittance, T P BS , for incidence angles close to the beamsplitting coating's internal Brewster angle are compensated such that the total transmittance of the beam-deflecting device remains essentially constant over the entire utilized range of incidence angles. The resultant projection lens allows uniformly illuminating the image field, without incidence of apodization effects.
    • 公开了一种具有反射折射透镜部分和屈光透镜部分的反折射投影透镜。 其反射折射透镜部分包括凹面镜和光束偏转装置,其在一个实施例的情况下包括具有偏振分束面的物理分束器,随后是偏转镜。 用于s偏振光的分束表面的反射率曲线以及来自分束器的用于木质素的偏转镜的反射率适于彼此适应,使得该透射率的大变化T> P <θBS>用于入射 补偿接近分束涂层内部布鲁斯特角的角度,使得光束偏转装置的总透射率在整个使用的入射角范围内保持基本恒定。 所得到的投影透镜允许均匀地照射图像场,而不会影响变迹效果。
    • 7. 发明申请
    • MIRROR FOR THE EUV WAVELENGTH RANGE, PROJECTION OBJECTIVE FOR MICROLITHOGRAPHY COMPRISING SUCH A MIRROR, AND PROJECTION EXPOSURE APPARATUS FOR MICROLITHOGRAPHY COMPRISING SUCH A PROJECTION OBJECTIVE
    • 用于EUV波长范围的镜像,包含这种镜子的微型计算机的投影目标和包含这种投影目标的微观计算的投影曝光装置
    • WO2010118928A1
    • 2010-10-21
    • PCT/EP2010/053633
    • 2010-03-19
    • Carl Zeiss SMT AGPAUL, Hans-JochenBRAUN, GerhardMIGURA, SaschaDODOC, AurelianZACZEK, Christoph
    • PAUL, Hans-JochenBRAUN, GerhardMIGURA, SaschaDODOC, AurelianZACZEK, Christoph
    • G02B5/08G21K1/06
    • G02B5/0875B82Y10/00G02B5/0891G03F7/70958G21K1/062
    • The invention relates to a mirror for the EUV wavelength range comprising a layer arrangement applied on a substrate, wherein the layer arrangement comprises a plurality of layer subsystems (P", P''') each consisting of a periodic sequence of at least one period (P 2 , P 3 ) of individual layers, wherein the periods (P 2 , P 3 ) comprise two individual layers composed of different material for a high refractive index layer (H'', H''') and a low refractive index layer (L'', L''') and have within each layer subsystem (P'', P''') a constant thickness (d 2 , d 3 ) that deviates from a thickness of the periods of an adjacent layer subsystem. The mirror is characterized in that the layer subsystem (P''') that is most distant from the substrate has a number (N 3 ) of periods (P 3 ) that is greater than the number (N 2 ) of periods (P 2 ) for the layer subsystem (P'') that is second most distant from the substrate and/or the layer subsystem (P''') that is most distant from the substrate has a thickness of the high refractive index layer (H''') that deviates by more than 0.1 nm from the thickness of the high refractive index layer (H'') of the layer subsystem (P'') that is second most distant from the substrate. The invention furthermore relates to a projection objective for rnicrolithography comprising such a mirror, and to a projection exposure apparatus comprising such a projection objective.
    • 本发明涉及一种用于EUV波长范围的反射镜,其包括施加在基板上的层布置,其中该层布置包括多个层子系统(P“,P”'),每个子系统由至少一个周期 (P2,P3),其中周期(P2,P3)包括由用于高折射率层(H“,H”“)和低折射率层(L')的不同材料组成的两个单独层, ',L“'),并且在每个层子系统(P”,P“”)内具有偏离相邻层子系统的周期的厚度的恒定厚度(d2,d3)。 距离衬底最远的层子系统(P“”)具有比层子系统(P“”)的周期(P2)的数量(N 2)大的周期(P3)的数量(N3) )距衬底最远的层和/或最远离衬底的层子系统(P“”)的厚度为 h的折射率层(H“)偏离距离衬底第二远的层子系统(P”)的高折射率层(H“)的厚度大于0.1nm。 本发明还涉及一种用于微光刻的投影物镜,包括这种反射镜,以及包括这种投影物镜的投射曝光设备。