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Lithographic apparatus configured to reconstruct an aerial pattern and to compare the reconstructed aerial pattern with an aerial pattern detected by an image sensor
Lithographic apparatus configured to reconstruct an aerial pattern and to compare the reconstructed aerial pattern with an aerial pattern detected by an image sensor
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机译:光刻设备,其配置为重建航迹并将比较后的航迹与图像传感器检测到的航迹进行比较
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摘要
The invention relates to an image for detection of an aerial pattern comprising spatial differences in radiation intensity in a cross section of a beam of radiation in a lithographic apparatus for exposing a substrate. The image sensor comprises a lens (5) arranged to form a detection image of the aerial pattern and an image detector (6) arranged to measure radiation intensities in a plurality, of positions in the detection image.
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