摘要:
A reticle-masking (REMA) objective for imaging an object plane onto an image plane has a condenser portion, an intermediate portion, and a field lens portion. The three portions together have no more than 10 lenses with a combined total of no more than five aspheric lens surfaces. Each of the three portions of the REMA objective has one or two aspheric lens surfaces.
摘要:
An optical imaging system for a microlithography projection exposure system is used for imaging an object field arranged in an object plane of the imaging system into an image field arranged in an image plane of the imaging system. A projection objective or a relay objective to be used in the illumination system can be involved, in particular. The imaging system has a plurality of lenses that are arranged between the object plane and the image plane and in each case have a first lens surface and a second lens surface. At least one of the lenses is a double aspheric lens where the first lens surface and the second lens surface is an aspheric surface. Lenses of good quality that have the action of an asphere with very strong deformation can be produced in the case of double aspheric lenses with an acceptable outlay as regards the surface processing and testing of the lens surfaces.
摘要:
An optical imaging system for a microlithography projection exposure system is used for imaging an object field arranged in an object plane of the imaging system into an image field arranged in an image plane of the imaging system. A projection objective or a relay objective to be used in the illumination system can be involved, in particular. The imaging system has a plurality of lenses that are arranged between the object plane and the image plane and in each case have a first lens surface and a second lens surface. At least one of the lenses is a double aspheric lens where the first lens surface and the second lens surface is an aspheric surface. Lenses of good quality that have the action of an asphere with very strong deformation can be produced in the case of double aspheric lenses with an acceptable outlay as regards the surface processing and testing of the lens surfaces.
摘要:
Partial objective for illumination of an image field in an illuminating device of a microlithographic projection exposure apparatus, arranged between a aperture plane and an image plane. The partial objective comprises a first lens group and a second lens group with a lens with a first aspheric lens surface. The second lens group has at least a first lens with negative refractive power and at least a second lens with positive refractive power. The maximum field height Yimmax within the image field is at least 40 mm; the image-side numerical aperture is at least 0.15. The distribution of the chief ray angles PF over the field heights Yim within the image field is given by a pupil function PF(Yim), which consists of a linear contribution c1·Yim and a non-linear contribution PFNL(Yim), the non-linear contribution PFNL(Yim) being at least +15 mrad for the maximum positive field height Yimmax.
摘要:
A catadioptric projection objective for projecting a pattern arranged in the object plane of the projection objective into the image plane of the projection objective, having: a first objective part for projecting an object field lying in the object plane into a first real intermediate image; a second objective part for generating a second real intermediate image with the radiation coming from the first objective part; a third objective part for generating a third real intermediate image with the radiation coming from the second objective part; and a fourth objective part for projecting the third real intermediate image into the image plane.
摘要:
A projection objective includes a first lens group (G1) of positive refractive power, a second lens group (G2) of negative refractive power and at least one further lens group of positive refractive power in which a diaphragm is mounted. The first lens group (G1) includes exclusively lenses of positive refractive power. The number of lenses of positive refractive power (L101 to L103; L201, L202) of the first lens group (G1) is less than the number of lenses of positive refractive power (L116 to L119; L215 to L217) which are mounted forward of the diaphragm of the further lens group (G5).
摘要翻译:投影物镜包括正折射光焦度的第一透镜组(G 1),负折射光焦度的第二透镜组(G 2)和安装有光阑的至少一个正屈光力透镜组。 第一透镜组(G 1)仅包括具有正屈光力的透镜。 第一透镜组(G 1)的正屈光力量的透镜数(L 101〜L 103; L 201,L 202)的数量小于正折射力透镜的数量(L 116〜L 119; L 215 至L 217),其安装在另一透镜组(G 5)的隔膜的前方。
摘要:
A projection exposure system is proposed which is positionable between a first object and a second object for imaging the first object in a region of the second object with light of a wavelength band having a width &dgr;&lgr; about a central working wavelength &lgr;, wherein a relative width &dgr;&lgr;/&lgr; of the wavelength band is larger than 0.002, in particular, larger than 0.005, for example, of the Hg-I-line. The projection exposure system is a so-called three-bulge system comprising three bulges having, as a whole, a positive refractive power and two waists having, as a whole, a negative refractive power. By applying suitable measures, in particular, by suitably selecting the material for the lenses forming the projection exposure system, the long-term stability of the system is increased.
摘要:
A catadioptric projection objective for projecting a pattern arranged in the object plane of the projection objective into the image plane of the projection objective, having: a first objective part for projecting an object field lying in the object plane into a first real intermediate image; a second objective part for generating a second real intermediate image with the radiation coming from the first objective part; a third objective part for generating a third real intermediate image with the radiation coming from the second objective part; and a fourth objective part for projecting the third real intermediate image into the image plane.
摘要:
A projection objective includes a first lens group (G1) of positive refractive power, a second lens group (G2) of negative refractive power and at least one further lens group of positive refractive power in which a diaphragm is mounted. The first lens group (G1) includes exclusively lenses of positive refractive power. The number of lenses of positive refractive power (L101 to L103; L201, L202) of the first lens group (G1) is less than the number of lenses of positive refractive power (L116 to L119; L215 to L217) which are mounted forward of the diaphragm of the further lens group (G5).
摘要翻译:投影物镜包括正折射光焦度的第一透镜组(G 1),负折射光焦度的第二透镜组(G 2)和安装有光阑的至少一个正屈光力透镜组。 第一透镜组(G 1)仅包括具有正屈光力的透镜。 第一透镜组(G 1)的正屈光力量的透镜数(L 101〜L 103; L 201,L 202)的数量小于正折射力透镜的数量(L 116〜L 119; L 215 至L 217),其安装在另一透镜组(G 5)的隔膜的前方。
摘要:
A projection objective includes a first lens group (G1) of positive refractive power, a second lens group (G2) of negative refractive power and at least one further lens group of positive refractive power in which a diaphragm is mounted. The first lens group (G1) includes exclusively lenses of positive refractive power. The number of lenses of positive refractive power (L101 to L103; L201, L202) of the first lens group (G1) is less than the number of lenses of positive refractive power (L116 to L119; L215 to L217) which are mounted forward of the diaphragm of the further lens group (G5).
摘要翻译:投影物镜包括正折射光焦度的第一透镜组(G 1),负折射光焦度的第二透镜组(G 2)和安装有光阑的至少一个正屈光力透镜组。 第一透镜组(G 1)仅包括具有正屈光力的透镜。 第一透镜组(G 1)的正屈光力量的透镜数(L 101〜L 103; L 201,L 202)的数量小于正折射力透镜的数量(L 116〜L 119; L 215 至L 217),其安装在另一透镜组(G 5)的隔膜的前方。