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ID:61760848
大小:1.95 MB
页数:21页
时间:2021-03-19
《ASML对准标记以及对准系统.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、AlignmentOverviewBasicAlignmentConceptGlobalAlignment1.W1M12.W1M2CalculatereticlerotationCalculatereticletranslationCalculateLensMagnification3.W2M1CalculatewaferrotationCalculatewafertranslationCalculatewaferexpansion4.Rotatewafer:M1-M2//W1-W25.Adjustmagnification(reticleheight)Detailed
2、AlignmentconceptAlignmentLaserBeamSourceandControlImageProjectionAlignmentblockandSignaldetectionVideocamera900prismFirstorderdiafragmQuadcellBeamsplitterAnalyserModulatorSeparatingbeamcomponentsAlignmentmodulationReticleandWaferMarkAlignmentgrating18micron8.8micronAlignmentgrating28micron8.8
3、micronDetectionofalignedpositionDemodulationCycleAL-17:FocusvsAlignmentFirstOrderDiaphragmM1AlignmentBlockM2AlignmentBlockAnalyser
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