EUV MASK FOR MONITORING FOCUS IN EUV LITHOGRAPHY

Obtaining optimal focus for exposing a photoresist in an EUV lithography with an EUV mask containing a pattern with an assist feature is disclosed. The EUV mask contains a repeating pattern, wherein the repeating pattern has two different pitches, i.e. a first pitch and a second pitch, and contains...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BRUNNER TIMOTHY ALLAN, BURKHARDT MARTIN
Format: Patent
Sprache:eng
Schlagworte:
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