Projection system for EUV lithography
    1.
    发明授权
    Projection system for EUV lithography 有权
    EUV光刻投影系统

    公开(公告)号:US07375798B2

    公开(公告)日:2008-05-20

    申请号:US11657420

    申请日:2007-01-24

    IPC分类号: G03B27/54 G03B27/42 G02B5/10

    摘要: There is provided an EUV optical projection system. The system includes a first mirror, a second mirror, a third mirror, a fourth mirror, a fifth mirror, and a sixth mirror situated in an optical path from an object plane to an image plane, for imaging an object in said object plane into an image in said image plane. The image has a width W and a secant length SL, and the width W is greater than about 2 mm.

    摘要翻译: 提供了一个EUV光学投影系统。 该系统包括位于从物平面到像平面的光路中的第一镜,第二镜,第三镜,第四镜,第五镜和第六镜,用于将所述物平面中的物体成像成 所述图像平面中的图像。 图像具有宽度W和割线长度SL,宽度W大于约2mm。

    Projection system for EUV lithography
    2.
    发明授权
    Projection system for EUV lithography 有权
    EUV光刻投影系统

    公开(公告)号:US07355678B2

    公开(公告)日:2008-04-08

    申请号:US11243407

    申请日:2005-10-04

    IPC分类号: G03B27/54 G03B27/42

    摘要: An EUV optical projection system includes at least six reflecting surfaces for imaging an object (OB) on an image (IM). The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a secondary mirror (M2) and a tertiary mirror (M3), such that a primary mirror (M1) and the secondary mirror (M2) form a first optical group (G1) and the tertiary mirror (M3), a fourth mirror (M4), a fifth mirror (M5) and a sixth mirror (M6) form a second optical group (G2). The system also preferably includes an aperture stop (APE) located along the optical path from the object (OB) to the image (IM) between the primary mirror (M1) and the secondary mirror (M2). The secondary mirror (M2) is preferably concave, and the tertiary mirror (M3) is preferably convex. Each of the six reflecting surfaces preferably receives a chief ray (CR) from a central field point at an incidence angle of less than substantially 15°. The system preferably has a numerical aperture greater than 0.18 at the image (IM). The system is preferably configured such that a chief ray (CR) converges toward the optical axis (OA) while propagating between the secondary mirror (M2) and the tertiary mirror (M3).

    摘要翻译: EUV光学投影系统包括用于对图像(IM)上的物体(OB)进行成像的至少六个反射表面。 该系统优选地配置成沿着从物体(OB)到次级反射镜(M 2)和第三反射镜(M 3)之间的图像(IM)的光路形成中间图像(IMI),使得主 反射镜(M 1)和副镜(M 2)形成第一光学组(G 1)和第三反射镜(M 3),第四反射镜(M 4),第五反射镜(M5)和第六反射镜 (M 6)形成第二光学组(G 2)。 该系统还优选地包括沿着从物体(OB)到主镜(M 1)和副镜(M 2)之间的图像(IM)的光路定位的孔径光阑(APE)。 副镜(M 2)优选为凹面,第三反射镜(M 3)优选为凸面。 六个反射表面中的每一个优选地以小于大约15°的入射角从中心场点接收主光线(CR)。 该系统优选地在图像(IM)处具有大于0.18的数值孔径。 优选地,该系统构造成使得主光线(CR)在副反射镜(M 2)和第三反射镜(M 3)之间传播的同时朝向光轴(OA)会聚。

    Projection system for EUV lithography
    3.
    发明授权
    Projection system for EUV lithography 有权
    EUV光刻投影系统

    公开(公告)号:US07151592B2

    公开(公告)日:2006-12-19

    申请号:US10454830

    申请日:2003-06-04

    IPC分类号: G03B27/54 G03B27/72 G02B5/10

    摘要: An EUV optical projection system includes at least six mirrors (M1, M2, M3, M4, M5, M6) for imaging an object (OB) to an image (IM). At least one mirror pair is preferably configured as an at least phase compensating mirror pair. The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a second mirror (M2) and a third mirror (M3), such that a first mirror (M1) and the second mirror (M2) form a first optical group (G1) and the third mirror (M3), a fourth mirror (M4), a fifth mirror (M5) and a sixth mirror (M6) form a second optical group (G1). The system also preferably includes an aperture stop (APE) located along the optical path from the object (OB) to the image (IM) between the first mirror (M1) and the second mirror (M2). The second mirror (M2) is preferably convex, and the third mirror (M3) is preferably concave. The system preferably forms an image (IM) with a numerical aperture greater than 0.18.

    摘要翻译: EUV光学投影系统包括用于将物体(OB)成像到图像(IM)的至少六个反射镜(M 1,M 2,M 3,M 4,M 5,M 6)。 优选地,至少一个镜对配置为至少相位补偿镜对。 该系统优选地被配置成沿着从物体(OB)到第二反射镜(M 2)和第三反射镜(M 3)之间的图像(IM))的光路形成中间图像(IMI),使得第一 反射镜(M 1)和第二反射镜(M 2)形成第一光学组(G 1)和第三反射镜(M 3),第四反射镜(M 4),第五反射镜(M5)和第六反射镜 (M 6)形成第二光学组(G 1)。 该系统还优选地包括沿着从物体(OB)到第一反射镜(M 1)和第二反射镜(M 2)之间的图像(IM))的光路定位的孔径光阑(APE)。 第二镜(M 2)优选为凸面,第三镜(M 3)优选为凹面。 该系统优选地形成数值孔径大于0.18的图像(IM)。

    Projection system for EUV lithography
    4.
    发明授权
    Projection system for EUV lithography 有权
    EUV光刻投影系统

    公开(公告)号:US06985210B2

    公开(公告)日:2006-01-10

    申请号:US10454831

    申请日:2003-06-04

    IPC分类号: G03B27/54 G03B27/42

    摘要: An EUV optical projection system includes at least six reflecting surfaces for imaging an object (OB) on an image (IM). The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a secondary mirror (M2) and a tertiary mirror (M3), such that a primary mirror (M1) and the secondary mirror (M2) form a first optical group (G1) and the tertiary mirror (M3), a fourth mirror (M4), a fifth mirror (M5) and a sixth mirror (M6) form a second optical group (G2). The system also preferably includes an aperture stop (APE) located along the optical path from the object (OB) to the image (IM) between the primary mirror (M1) and the secondary mirror (M2). The secondary mirror (M2) is preferably concave, and the tertiary mirror (M3) is preferably convex. Each of the six reflecting surfaces preferably receives a chief ray (CR) from a central field point at an incidence angle of less than substantially 15°. The system preferably has a numerical aperture greater than 0.18 at the image (IM). The system is preferably configured such that a chief ray (CR) converges toward the optical axis (OA) while propagating between the secondary mirror (M2) and the tertiary mirror (M3).

    摘要翻译: EUV光学投影系统包括用于对图像(IM)上的物体(OB)进行成像的至少六个反射表面。 该系统优选地配置成沿着从物体(OB)到次级反射镜(M 2)和第三反射镜(M 3)之间的图像(IM)的光路形成中间图像(IMI),使得主 反射镜(M 1)和副镜(M 2)形成第一光学组(G 1)和第三反射镜(M 3),第四反射镜(M 4),第五反射镜(M5)和第六反射镜 (M 6)形成第二光学组(G 2)。 该系统还优选地包括沿着从物体(OB)到主镜(M 1)和副镜(M 2)之间的图像(IM)的光路定位的孔径光阑(APE)。 副镜(M 2)优选为凹面,第三反射镜(M 3)优选为凸面。 六个反射表面中的每一个优选地以小于大约15°的入射角从中心场点接收主光线(CR)。 该系统优选地在图像(IM)处具有大于0.18的数值孔径。 优选地,该系统构造成使得主光线(CR)在副反射镜(M 2)和第三反射镜(M 3)之间传播的同时朝向光轴(OA)会聚。

    Reduction objective for extreme ultraviolet lithography
    5.
    发明授权
    Reduction objective for extreme ultraviolet lithography 有权
    极光紫外光刻的减量目标

    公开(公告)号:US06577443B2

    公开(公告)日:2003-06-10

    申请号:US09878697

    申请日:2001-06-11

    IPC分类号: G02B510

    摘要: A reduction objective, a projection exposure apparatus with a reduction objective, and a method of use thereof are disclosed. The reduction objective has a first set of multilayer mirrors in centered arrangement with respect to a first optical axis, a second set of multilayer mirrors in centered arrangement with respect to a second optical axis, and an additional mirror disposed at grazing incidence, such that said additional mirror defines an angle between the first optical axis and said second optical axis. The reduction objective has an imaging reduction scale of approximately 4× for use in soft X-ray, i.e., EUV and UV, annular field projection applications, such as lithography

    摘要翻译: 公开了一种还原目标,具有还原目标的投影曝光装置及其使用方法。 还原物镜具有相对于第一光轴居中布置的第一组多层反射镜,相对于第二光轴居中布置的第二组多层反射镜,以及放置在入射处的附加镜,使得所述多层反射镜 另外的反射镜限定了第一光轴和所述第二光轴之间的角度。 还原目标具有用于软X射线(即EUV和UV)环形场投影应用中的大约4x的成像缩小比例,例如光刻

    6-mirror microlithography projection objective
    7.
    发明授权
    6-mirror microlithography projection objective 失效
    6镜微光投影物镜

    公开(公告)号:US06867913B2

    公开(公告)日:2005-03-15

    申请号:US09920285

    申请日:2001-08-01

    IPC分类号: G02B17/06 G03F7/20 G02B17/00

    CPC分类号: G03F7/70233 G02B17/0657

    摘要: There is provided a microlithography projection objective for short wavelengths, with an entrance pupil and an exit pupil for imaging an object field in an image field, which represents a segment of a ring field, in which the segment has an axis of symmetry and an extension perpendicular to the axis of symmetry and the extension is at least 20 mm. The objective comprises a first (S1), a second (S2), a third (S3), a fourth (S4), a fifth (S5) and a sixth mirror (S6) in centered arrangement relative to an optical axis. Each of these mirrors have an off-axis segment, in which the light beams traveling through the projection objective impinge. The diameter of the off-axis segment of the first, second, third, fourth, fifth and sixth mirrors as a function of the numerical aperture NA of the objective at the exit pupil is ≦1200 mm * NA.

    摘要翻译: 提供了用于短波长的微光刻投影物镜,具有用于对图像场中的物场进行成像的入射光瞳和出射光瞳,其表示环形场的区段,其中该区段具有对称轴和延伸部 垂直于对称轴和延伸部至少为20mm。 目标包括相对于光轴居中排列的第一(S1),第二(S2),第三(S3),第四(S4),第五(S5)和第六反射镜(S6)。 这些反射镜中的每一个具有离轴部分,其中穿过投影物镜的光束撞击其中。 作为出射光瞳处的物镜的数值孔径NA的函数的第一,第二,第三,第四,第五和第六反射镜的离轴部分的直径为<= 1200MM * NA。

    Projection system for EUV lithograhphy
    8.
    发明申请
    Projection system for EUV lithograhphy 有权
    EUV光刻投影系统

    公开(公告)号:US20070153252A1

    公开(公告)日:2007-07-05

    申请号:US11657420

    申请日:2007-01-24

    IPC分类号: G03B27/54

    摘要: There is provided an EUV optical projection system. The system includes a first mirror, a second mirror, a third mirror, a fourth mirror, a fifth mirror, and a sixth mirror situated in an optical path from an object plane to an image plane, for imaging an object in said object plane into an image in said image plane. The image has a width W and a secant length SL, and the width W is greater than about 2 mm.

    摘要翻译: 提供了一个EUV光学投影系统。 该系统包括位于从物平面到像平面的光路中的第一镜,第二镜,第三镜,第四镜,第五镜和第六镜,用于将所述物平面中的物体成像成 所述图像平面中的图像。 图像具有宽度W和割线长度SL,宽度W大于约2mm。

    Projection system for EUV lithography
    9.
    发明申请
    Projection system for EUV lithography 审中-公开
    EUV光刻投影系统

    公开(公告)号:US20070070322A1

    公开(公告)日:2007-03-29

    申请号:US11604997

    申请日:2006-11-28

    IPC分类号: G03B27/54

    摘要: An EUV optical projection system includes at least six mirrors (M1, M2, M3, M4, M5, M6) for imaging an object (OB) to an image (IM). At least one mirror pair is preferably configured as an at least phase compensating mirror pair. The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a second mirror (M2) and a third mirror (M3), such that a first mirror (M1) and the second mirror (M2) form a first optical group (G1) and the third mirror (M3), a fourth mirror (M4), a fifth mirror (M5) and a sixth mirror (M6) form a second optical group (G1). The system also preferably includes an aperture stop (APE) located along the optical path from the object (OB) to the image (IM) between the first mirror (M1) and the second mirror (M2). The second mirror (M2) is preferably convex, and the third mirror (M3) is preferably concave. The system preferably forms an image (IM) with a numerical aperture greater than 0.18.

    摘要翻译: EUV光学投影系统包括用于将物体(OB)成像到图像(IM)的至少六个反射镜(M 1,M 2,M 3,M 4,M 5,M 6)。 优选地,至少一个镜对配置为至少相位补偿镜对。 该系统优选地被配置成沿着从物体(OB)到第二反射镜(M 2)和第三反射镜(M 3)之间的图像(IM))的光路形成中间图像(IMI),使得第一 反射镜(M 1)和第二反射镜(M 2)形成第一光学组(G 1)和第三反射镜(M 3),第四反射镜(M 4),第五反射镜(M5)和第六反射镜 (M 6)形成第二光学组(G 1)。 该系统还优选地包括沿着从物体(OB)到第一反射镜(M 1)和第二反射镜(M 2)之间的图像(IM))的光路定位的孔径光阑(APE)。 第二镜(M 2)优选为凸面,第三镜(M 3)优选为凹面。 该系统优选地形成数值孔径大于0.18的图像(IM)。

    Projection system for EUV lithography
    10.
    再颁专利
    Projection system for EUV lithography 有权
    EUV光刻投影系统

    公开(公告)号:USRE42118E1

    公开(公告)日:2011-02-08

    申请号:US11981511

    申请日:2007-10-31

    IPC分类号: G03B27/54 G03B27/42

    摘要: An EUV optical projection system includes at least six reflecting surfaces for imaging an object (OB) on an image (IM). The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a secondary mirror (M2) and a tertiary mirror (M3), such that a primary mirror (M1) and the secondary mirror (M2) form a first optical group (G1) and the tertiary mirror (M3), a fourth mirror (M4), a fifth mirror (M5) and a sixth mirror (M6) form a second optical group (G2). The system also preferably includes an aperture stop (APE) located along the optical path from the object (OB) to the image (IM) between the primary mirror (M1) and the secondary mirror (M2). The secondary mirror (M2) is preferably concave, and the tertiary mirror (M3) is preferably convex. Each of the six reflecting surfaces preferably receives a chief ray (CR) from a central field point at an incidence angle of less than substantially 15°. The system preferably has a numerical aperture greater than 0.18 at the image (IM). The system is preferably configured such that a chief ray (CR) converges toward the optical axis (OA) while propagating between the secondary mirror (M2) and the tertiary mirror (M3).

    摘要翻译: EUV光学投影系统包括用于对图像(IM)上的物体(OB)进行成像的至少六个反射表面。 该系统优选地被配置成沿着从物体(OB)到次级反射镜(M2)和第三反射镜(M3)之间的图像(IM)的光路形成中间图像(IMI),使得主反射镜 M1)和副镜(M2)形成第一光学组(G1),第三反射镜(M3),第四反射镜(M4),第五反射镜(M5)和第六反射镜(M6)形成第二光学组 (G2)。 该系统还优选地包括沿着从物体(OB)到主镜(M1)和副镜(M2)之间的图像(IM)的光路定位的孔径光阑(APE)。 副镜(M2)优选为凹面,第三反射镜(M3)优选为凸面。 六个反射表面中的每一个优选地以小于大约15°的入射角从中心场点接收主光线(CR)。 该系统优选地在图像(IM)处具有大于0.18的数值孔径。 优选地,该系统被配置为使得主光线(CR)在副反射镜(M2)和第三反射镜(M3)之间传播的同时朝向光轴(OA)会聚。