PROCESS BASED METROLOGY TARGET DESIGN

Methods and systems for automatically generating robust metrology targets which can accommodate a variety of lithography processes and process perturbations. Individual steps of an overall lithography process are modeled into a single process sequence to simulate the physical substrate processing. T...

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Bibliographische Detailangaben
Hauptverfasser: Zhang, Youping, Lu, Yen-Wen, Kent, Eric Richard, Bijlsma, Jan Wouter, CHEN, Guangqing, Bai, Shufeng, Tuffy, Paul Anthony, Wang, Jen-Shiang, Zwartjes, Gertjan
Format: Patent
Sprache:eng
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Zusammenfassung:Methods and systems for automatically generating robust metrology targets which can accommodate a variety of lithography processes and process perturbations. Individual steps of an overall lithography process are modeled into a single process sequence to simulate the physical substrate processing. That process sequence drives the creation of a three-dimensional device geometry as a whole, rather than "building" the device geometry element-by-element.