发明名称 METHOD FOR CORRECTING THE SURFACE FORM OF A MIRROR
摘要 A method for correcting a surface form of a mirror (1) for reflecting radiation in the wavelength range of 5-30 nm, which includes: applying a correction layer (13) having a layer thickness variation (21) for correcting the mirror's surface form, and applying a first group (19) of layers to the correction layer. The first group (19) of layers includes first (9) and second (11) layers arranged alternately one above another, wherein the first layers have a refractive index at the operating wavelength which is greater than the refractive index of the second layers for that radiation. The correction layer (13) is applied by: introducing the mirror into an atmosphere including a reaction gas (15), applying a correction radiation (17) having a location-dependent radiation energy density, such that a correction layer having a location-dependent layer thickness variation (21) grows on the mirror's irradiated surface.
申请公布号 US2014078481(A1) 申请公布日期 2014.03.20
申请号 US201314026486 申请日期 2013.09.13
申请人 CARL ZEISS SMT GMBH 发明人 MUELLER JUERGEN;SCHICKETANZ THOMAS;EHM DIRK HEINRICH
分类号 G02B5/08;G03F7/20 主分类号 G02B5/08
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