Method for adjusting a substrate in an appliance for carrying out exposure

The unevennesses of a chuck are measured at various positions and are stored, as discrepancies from an idealized plane, in a databank. The measured discrepancies are used to calculate corrections for the predetermined settings for the focus distance and/or the tilt of the chuck. These corrections ar...

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Bibliographische Detailangaben
Hauptverfasser: SCHEDEL THORSTEN, ROESSIGER MARTIN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The unevennesses of a chuck are measured at various positions and are stored, as discrepancies from an idealized plane, in a databank. The measured discrepancies are used to calculate corrections for the predetermined settings for the focus distance and/or the tilt of the chuck. These corrections are in each case used differently for adjusting the respective exposure of the exposure areas.