Metrology Apparatus with Radiation Source Having Multiple Broadband Outputs

Disclosed is a metrology apparatus for use in a lithographic manufacturing process. The metrology apparatus comprises a radiation source comprising a drive laser having an output split into a plurality of optical paths, each comprising a respective broadband light generator. The metrology apparatus...

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Bibliographic Details
Main Authors SCHOLTES-VAN EIJK, Paul William, HUGERS, Ronald Franciscus Herman
Format Patent
LanguageEnglish
Published 20.08.2020
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Summary:Disclosed is a metrology apparatus for use in a lithographic manufacturing process. The metrology apparatus comprises a radiation source comprising a drive laser having an output split into a plurality of optical paths, each comprising a respective broadband light generator. The metrology apparatus further comprises illumination optics for illuminating a structure, at least one detection system for detecting scattered radiation, having been scattered by the structure and a processor for determining a parameter of interest of the structure from the scattered radiation.
Bibliography:Application Number: US202016789816