发明名称 Imaging system for an extreme ultraviolet (EUV) beam-based microscope
摘要 Imaging system for a microscope based on extreme ultraviolet (EUV) radiation. The present invention is directed to a reflective imaging system for an x-ray microscope for examining and object in an object plane, wherein the object is illuminated by rays of a wavelength of less than 100 nm, particularly less than 30 nm, and is imaged in a magnified manner in an image plane. In the imaging system, according to the invention, for a microscope based on extreme ultraviolet (EUV) radiation with wavelengths in the range of less than 100 nm, with a magnification of 0.1x to 1000x and a structural length of less than 5 m, at least one of the imaging optical elements 2 and 3 in the beam path has a diffractive-reflective structure which is arranged on a spherical or plane area and has a non-rotationally symmetric, asymmetric shape. The arrangement according to the invention provides an imaging system which avoids the disadvantages of the prior art and ensures a high imaging quality. The manufacturing cost remains reasonable due to the exclusive use of spherical mirrors.
申请公布号 US6894837(B2) 申请公布日期 2005.05.17
申请号 US20030626130 申请日期 2003.07.24
申请人 CARL ZEISS MICROELECTRIC SYSTEMS GMBH 发明人 DOBSCHAL HANS-JUERGEN;SCHERUEBL THOMAS;BRUNNER ROBERT;ROSENKRANZ NORBERT;GREIF-WUESTENBECKER JOERN
分类号 G21K1/06;G21K7/00;(IPC1-7):G02B21/00 主分类号 G21K1/06
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