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    • 5. 发明申请
    • ILLUMINATION SYSTEM PARTICULARLY FOR MICROLITHOGRAPHY
    • 照明系统特别适用于微晶
    • WO0227406A3
    • 2002-07-04
    • PCT/EP0111232
    • 2001-09-28
    • ZEISS CARLZEISS STIFTUNGANTONI MARTINSINGER WOLFGANGWANGLER JOHANNES
    • ANTONI MARTINSINGER WOLFGANGWANGLER JOHANNES
    • F21V5/00F21V7/00F21V13/04G02B13/18G02B17/00G02B17/08G02B19/00G03F7/20G21K1/06G21K5/00G21K5/02G21K5/04H01L21/027
    • G21K1/06B82Y10/00G03F7/70075G03F7/70083G03F7/70091G03F7/70108G03F7/70166G03F7/702G03F7/70233G03F7/70358G03F7/708G03F7/70891G21K1/067G21K2201/06G21K2201/064
    • The invention concerns an illumination system, particularly for microlithography with wavelengths ≤ 93 nm, comprising: a primary light source; a first optical component; a second optical component; an image plane; and an exit pupil; wherein said first optical component transforms said primary light source into a plurality of secondary light sources that are imaged by said second optical component in said exit pupil, wherein said first optical component includes a first optical element having a plurality of first raster elements, that are imaged into said image plane, producing a plurality of images being superimposed at least partially on a field in said image plane, wherein said plurality of first raster elements are rectangular, wherein said filed is a segment of an annulus, and wherein said second optical component includes a first field mirror with negative optical power for shaping said field to said segment of said annulus and a second field mirror with positive optical power, wherein each of a plurality of rays intersects said first field mirror with an incidence angel greater than 70 DEG and wherein each of a plurality of rays intersects said second field mirror with an incidence angle of less than 25 DEG .
    • 本发明涉及一种照明系统,特别是对于波长≤93nm的微光刻技术,包括:初级光源; 第一光学部件; 第二光学部件; 图像平面; 和退学生; 其中所述第一光学部件将所述初级光源转换成由所述出射光瞳中的所述第二光学部件成像的多个次级光源,其中所述第一光学部件包括具有多个第一光栅元件的第一光学元件, 成像到所述图像平面中,产生至少部分地叠加在所述图像平面中的场上的多个图像,其中所述多个第一光栅元素是矩形的,其中所述场是环的一段,并且其中所述第二光学部件 包括具有负光焦度的第一场反射镜,用于将所述场成形为所述环带的所述段,以及具有正光焦度的第二场反射镜,其中多个光线中的每一个与所述第一场反射镜相交,入射角大于70°, 其中多个光线中的每一个与所述第二场反射镜相交,入射角小于25° 。