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    • 2. 发明申请
    • PROJECTION EXPOSURE METHOD AND PROJECTION EXPOSURE SYSTEM
    • 投影曝光方法和投影曝光系统
    • WO2008037384A3
    • 2008-06-26
    • PCT/EP2007008145
    • 2007-09-19
    • ZEISS CARL SMT AGKALLER JULIANGRUNER TORALF
    • KALLER JULIANGRUNER TORALF
    • G03F7/20
    • G03F7/70933G03F7/70191G03F7/70575G03F7/70941
    • In a projection exposure method primary radiation having a center wavelength ? is generated and guided through an illumination system along an illumination path and through a projection system along a projection path. The center wavelength is varied within a wavelength variation range ?? having a lower limit ? MIN = ? and an upper limit ? MAX > ?. A specific absorption coefficient k(?) of at least one gaseous absorbent species selected from the group consisting of oxygen (O 2 ), ozone (O 3 ) and water vapor (H 2 O) present in at least one gas-filled space along at least one of the illumination path and the projection path varies between a minimum absorption coefficient k MIN and a maximum absorption coefficient k MAX within the wavelength variation range such that an absorption ratio (k MAX / k MIN ) exceeds 10. A concentration of the absorbent species within the gas-filled space is controlled such that an overall absorption variation effected by the absorbent species for all rays running along different ray paths towards the image field is maintained below a predetermined absorption variation threshold value.
    • 在投影曝光方法中,具有中心波长λ 沿着照明路径被产生并引导通过照明系统,并沿着投影路径通过投影系统。 中心波长在波长变化范围内变化 具有下限? =? 和上限?最大值? 至少一种选自氧(O 2 O 3),臭氧(O 3 3)和水蒸汽(O 3))的气态吸收物质的比吸收系数k(ω) 沿着照明路径和投影路径中的至少一个存在于至少一个气体填充空间中的H 2 O 2 O在最小吸收系数k MIN和最大值之间变化 吸收系数k max max在波长变化范围内,使得吸收比(k max / k MIN MIN)超过10。吸收剂的浓度 控制气体填充空间内的物质,使得沿着沿着不同射线路径朝向图像场行进的所有射线的吸收物质的整体吸收变化保持在预定的吸收变化阈值以下。
    • 3. 发明申请
    • METHOD FOR IMPROVING THE IMAGING PROPERTIES OF AN OPTICAL SYSTEM AND SUCH AN OPTICAL SYSTEM
    • 方法的光学系统的改善画面属性,而这种光学系统
    • WO2008113605A2
    • 2008-09-25
    • PCT/EP2008002289
    • 2008-03-20
    • ZEISS CARL SMT AGGRUNER TORALFKWAN YIM-BUN-PATRICK
    • GRUNER TORALFKWAN YIM-BUN-PATRICK
    • G02B27/00G03F7/20
    • G02B7/028G02B27/0068G03F7/70258G03F7/70308G03F7/706G03F7/70891
    • The invention relates to a method for improving the imaging properties of an optical system (10, 12). The optical system (10, 12) has a plurality of optical elements in order to depict a structure (24) on a substrate (28) that is disposed in an image plane (32) of the optical system (10, 12). The method comprises a process step (a) of detecting at least one first time-dependent and at least partially reversible imaging error of the optical system (10, 12) caused by the heating of at least one of the optical elements (36, 38, and a process step (b) of at least partially correcting the at least first imaging error by replacing at least one of the first optical elements (36, 38) from the plurality of the optical elements with at least one first optical compensation element. The invention further relates to such an optical system (10, 12) having improved imaging properties (Fig. 1).
    • 本发明涉及一种用于改进的光学系统(10,12)的成像特性的方法。 所述光学系统(10,12)具有多个在所述光学系统(10,12)的图像平面(32)的基板(28)上的光学元件被布置成映射结构(24)。 该方法包括处理步骤(a)中,检测至少一个第一通过加热光学元件中的至少一个(36,38)引起的与时间相关的至少部分可逆的光学系统(10,12)的像差,以及方法步骤(b)中,至少部分地 校正由至少多个光学元件中的第一光学元件(36,38)交换为对至少一个第一光学补偿元件的至少第一图像缺陷。 本发明还涉及这样的光学系统(10,12)具有改善的成像特性(图1)。
    • 9. 发明申请
    • DEVICE AND METHOD FOR ILLUMINATION DOSE ADJUSTMENTS IN MICROLITHOGRAPHY
    • 用于照相剂量调节剂的装置和方法
    • WO2005040927A3
    • 2005-12-08
    • PCT/EP2004010554
    • 2004-09-21
    • ZEISS CARL SMT AGGRUNER TORALFDEGUENTHER MARKUS
    • GRUNER TORALFDEGUENTHER MARKUS
    • G03F7/20
    • G03F7/70066G03F7/70558
    • A device for adjusting the illumination dose on a photosensitive layer (26), which is applied to a support (28) that can be displaced in a microlithographic projection exposure system (10) in a scanning direction (22) relative to a projection lens (16) of the projection exposure system (10), comprises an arrangement of a plurality of stop elements (52, 52') which are arranged next to one another perpendicularly to the scanning direction (22) and can respectively be displaced individually in the scanning direction (22) into a light field (60) produced by the projection exposure system (10). At least one stop element (52) is partially transparent for the projection light (14) being used in the projection exposure system (10), at least inside a subregion (69). This procedure substantially avoids pulse quantisation effects, which occur when using pulsed light sources (30) and can lead to inhomogeneous illumination of the reticle (20).
    • 一种用于调节感光层(26)上的照射剂量的装置,其被施加到在微光刻投影曝光系统(10)中相对于投影透镜在扫描方向(22)上移位的支撑件(28) 投影曝光系统(10)的图16(16)包括沿垂直于扫描方向(22)彼此相邻布置的多个停止元件(52,52')的布置,并且可以分别在扫描 方向(22)投射到由投影曝光系统(10)产生的光场(60)中。 至少一个止动元件(52)对于在投影曝光系统(10)中使用的至少在子区域(69)内的投影光(14)是部分透明的。 该过程基本上避免了当使用脉冲光源(30)时发生的脉冲量化效应并且可能导致光罩(20)的不均匀照明。
    • 10. 发明申请
    • IMAGING SYSTEM FOR A MICROLITHOGRAPHICAL PROJECTION LIGHT SYSTEM
    • 微米级投影曝光设备的图解系统
    • WO2005081068A3
    • 2005-11-10
    • PCT/EP2005000277
    • 2005-01-13
    • ZEISS CARL SMT AGGRUNER TORALFEPPLE ALEXANDERKNEER BERNHARDWABRA NORBERTBEDER SUSANNEDORSEL ANDREAS
    • GRUNER TORALFEPPLE ALEXANDERKNEER BERNHARDWABRA NORBERTBEDER SUSANNEDORSEL ANDREAS
    • G03F7/20
    • G03F7/70225G03F7/70241G03F7/70341G03F7/70958G03F7/70966
    • The invention relates to an imaging system of a microlithographical projection light system, comprising a projection lens (200, 300, 500, 600) which is used to reproduce a mask which can be positioned on a lens plane on a light-sensitive layer which can be positioned on an image plane; and a fluid inlet (205) which is used to fill an intermediate chamber between the image plane and a final optical element (201, 309, 506) of the projection lens, with immersion liquid (202, 310, 507, 601), on the image plane. The final optical element of the projection lens on the image plane is arranged, in the direction of gravity, after the image plane and the projection lens is embodied in such a manner that the immersion fluid, in the immersion state, comprises a convex curve, in the direction oriented away from the image plane, at least in one area. According to the invention, the final optical element (201, 309, 506) of the projection lens on the image plane is arranged below the image plane in such a manner that the immersion fluid (202, 310, 507, 601) is at least partially arranged in an essentially dish-shaped area on the final optical element on the image plane. Said system can also comprises a rotator which is used to rotate a substrate comprising the light-sensitive layer (401) between a transport position, wherein the light-sensitive layer is arranged on a substrate surface disposed in the counter direction to the direction of gravity, and a position of exposure, wherein the light-sensitive layer (401) is arranged on a substrate surface disposed in the direction of gravity.
    • 具有用于在光敏感层的图像平面上的定位在物平面掩模成像可定位的投影透镜(200,300,500,600)的微光刻投射曝光设备的成像系统; 和用于填充所述投射物镜的像平面和图像平面侧最后的光学元件(201,309,506)之间的间隙与浸没液体(202,310,507,601)的液体供给(205); 其中投影透镜的图像平面侧最后一个光学元件沿像平面在重力方向上布置; 并且其中所述投影透镜被设计成使得在浸没模式中,所述浸没液体在远离所述像平面的方向上至少部分地凸出地弯曲。 还可以预期的是,投影透镜的像面侧最后的光学元件(201,309,506)设置在图像平面下方,使得浸没液体(202,310,507,601)至少部分地基于所述像面侧的大致槽形区域部分地 最后一个光学元件被安排。 用于旋转具有输送方向之间的衬底的感光层(401)旋转器罐,被布置在位于一个相对的衬底表面的重力方向上的感光层,和一个曝光取向,其中在重力的方向上的感光层(401) 可以设置平躺的基板表面。