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    • 8. 发明申请
    • MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
    • 微波投影曝光装置
    • WO2009080279A1
    • 2009-07-02
    • PCT/EP2008/010801
    • 2008-12-18
    • CARL ZEISS SMT AGLAYH, MichaelDEGÜNTHER, MarkusPATRA, MichaelWANGLER, JohannesMAUL, ManfredFIOLKA, DamianWEISS, Gundula
    • LAYH, MichaelDEGÜNTHER, MarkusPATRA, MichaelWANGLER, JohannesMAUL, ManfredFIOLKA, DamianWEISS, Gundula
    • G03F7/20
    • G03F7/702G02B5/09G02B26/105G03F7/70116G03F7/7055G03F7/70583
    • A projection exposure apparatus for microlithography comprises illumination optics for illuminating object field points of an object field in an object plane. The illumination optics have, for each object field point of the object field, an exit pupil associated with the object point, wherein sin(γ) is a greatest marginal angle value of the exit pupil, and wherein the illumination optics comprise a multi-mirror array (38) comprising a plurality of mirrors (38s) for adjusting an intensity distribution in exit pupils associated to the object field points. The illumination optics further contain at least one optical system (33a; 33b,; 33c; 3d; 400; 822; 903; 1010; 1103; 1203) for temporally stabilising the illumination of the multi-mirror array (38) so that, for each object field point, the intensity distribution in the associated exit pupil deviates from a desired intensity distribution in the associated exit pupil in the case of a centroid angle value sin(β) by less than 2% expressed in terms of the greatest marginal angle value sin(γ) of the associated exit pupil and/or, in the case of ellipticity by less than 2%, and/or in the case of a pole balance by less than 2%.
    • 用于微光刻的投影曝光装置包括用于照射物平面中的物场的对象场点的照明光学装置。 对于物场的每个物场点,照明光学器件具有与对象点相关联的出射光瞳,其中sin(θ)是出射光瞳的最大边缘角度值,并且其中照明光学器件包括多镜 阵列(38)包括用于调整与对象场点相关联的出射光瞳中的强度分布的多个反射镜(38s)。 照明光学器件进一步包含至少一个光学系统(33a; 33b;; 33c; 3d; 400; 822; 903; 1010; 1103; 1203),用于暂时稳定多镜阵列(38)的照明, 在每个对象场点处,相关联的出射光瞳中的强度分布在相关出射光瞳中偏离期望的强度分布,在重心角度值sin(ß)小于2%的情况下,以最大边角值表示 相关联的出射光瞳的sin(θ)和/或在椭圆率小于2%的情况下,和/或在极平衡小于2%的情况下。