摘要:
The invention relates to an objective, particularly a projection objective for use in semiconductor lithography, comprising optical elements such as lenses (16) and mirrors (11a). According to the invention, at least a portion of the optical elements (16, 11a) is provided with a reflective surface outside of the optically active area serving as the reference surface (12) for a the optical element inside the objective (8).
摘要:
An imaging device in a projection exposure machine for microlithography has at least one optical element and at least one manipulator, having a linear drive, for manipulating the position of the optical element. The linear drive has a driven subregion and a nondriven subregion, which are movable relative to one another in the direction of a movement axis. The subregions are interconnected at least temporarily via functional elements with an active axis and via functional elements with an active direction at least approximately parallel to the movement axis.
摘要:
An imaging device in a projection exposure machine for microlithography comprises at least one optical element and at least one manipulator, a linear drive for manipulating the position of the optical element. Said linear drive has at least one moving element, said moving element having a shearing part and a lifting part. Said shearing part is arranged to move the optical element and said lifting part is arranged to move said shearing part. Said linear drive has a supporting element which is in contact with and prevents movement of the optical element while the shearing part is moved by the lifting part.
摘要:
An objective, in particular a projection objective in microlithography for producing semiconductor components, is assembled from a number of individual housing structures (4, 5), optical elements being arranged in each housing structure (4, 5), and a number of optical axes (15, 16, 18, 35) being formed by the housing structures (4, 5). At least one first housing structure (4) is provided with seats (22, 23, 24, 25) on which one or more further housing structures (5) and/or optical subassemblies (6, 8, 11, 14) are adjusted and are connected to the first housing structure (4).
摘要:
High precision optical components, for example CaF2 lenses in lithographic systems for the production of integrated circuits, often suffer from stress induced birefringence and other imperfections. For altering the optical properties in a confined region of the optical component, the latter is exposed to a beam of ions having an energy preferably in the order 100 MeV/u. This results in a modification of the optical properties due to an interaction of the ions with the surrounding medium the optical component consists of. By carefully choosing the parameters of the process, it is possible to alter the refractive index or the mechanical stress distribution or other optical properties within a confined region of this medium.
摘要:
An imaging device in a projection exposure machine for microlithography has at least one optical element and at least one manipulator, having a linear drive, for manipulating the position of the optical element. The linear drive has a driven subregion and a nondriven subregion, which are movable relative to one another in the direction of a movement axis. The subregions are interconnected at least temporarily via functional elements with an active axis and via functional elements with an active direction at least approximately parallel to the movement axis.
摘要:
An imaging device in a projection exposure machine for microlithography includes at least one optical element and at least one manipulator, a linear drive for manipulating the position of the optical element. The linear drive has at least one moving element, the moving element having a shearing part and a lifting part. The shearing part is arranged to move the optical element and the lifting part is arranged to move the shearing part. The linear drive has a supporting element which is in contact with and prevents movement of the optical element while the shearing part is moved by the lifting part.
摘要:
An objective is provided with a plurality of lenses, mirrors and at least one beam splitter element (20) inserted in an objective housing (1). One or more surfaces (26, 27, 28), situated in the beam path, of the beam splitter element (20) are provided as correction aspherics. The beam splitter element (20) can be provided with manipulators (22) that are arranged on a manipulator carrier (23) which is permanently connected to the objective housing.
摘要:
A catadioptric objective comprises a plurality of lenses and at least two deflecting mirrors that have reflecting surfaces that are at a specific angle, in particular of 90°, to one another. The two deflecting mirrors are arranged with their reflecting surfaces on a common base member whose position in the objective can be set.
摘要:
An imaging device in a projection exposure machine for microlithography has at least one optical element and at least one manipulator, having a linear drive, for manipulating the position of the optical element. The linear drive has a driven subregion and a nondriven subregion, which are movable relative to one another in the direction of a movement axis. The subregions are interconnected at least temporarily via functional elements with an active axis and via functional elements with an active direction at least approximately parallel to the movement axis.