METHOD FOR INSPECTION OF A TARGET OBJECT, CONTROL SYSTEM AND INSPECTION SYSTEM

A method for inspection of a target object, the method including irradiating a reference surface having a non-flat reference profile with radiation; determining reference response data based on detected radiation having interacted with the reference surface; irradiating a target object with radiatio...

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Bibliographische Detailangaben
Hauptverfasser: VAN MECHELEN, Jacobus Lodevicus Martinus, MAAS, Deran, FRANK, Andreas
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for inspection of a target object, the method including irradiating a reference surface having a non-flat reference profile with radiation; determining reference response data based on detected radiation having interacted with the reference surface; irradiating a target object with radiation, the target object including a target surface having a non-flat target profile corresponding to the reference profile; determining inspection response data based on detected radiation having interacted with the target object; and determining at least one parameter of the target object based on the reference response data and the inspection response data. An alternative method; a control system for controlling an emitter system and a detector system; and an inspection system including a control system, an emitter system and a detector system, are also provided.