ANTIREFLEXSCHICHT UND VERFAHREN ZUR LITHOGRAFISCHEN STRUKTURIERUNG EINER SCHICHT

A thick layer formed of aSi or aSi/aSiN is used as an antireflection layer (3) in the lithographic structuring of layers (2) on a semiconductor substrate (1). A reflection suppression is based on absorption in the aSi layer and on interference in the aSiN layer. An optical decoupling of the backgrou...

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Bibliographische Detailangaben
Hauptverfasser: CZECH, GUENTER, KUEPPER, PAUL, JOSWIG, HELLMUT, KUESTERS, KARL-HEINZ
Format: Patent
Sprache:ger
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Zusammenfassung:A thick layer formed of aSi or aSi/aSiN is used as an antireflection layer (3) in the lithographic structuring of layers (2) on a semiconductor substrate (1). A reflection suppression is based on absorption in the aSi layer and on interference in the aSiN layer. An optical decoupling of the background is achieved, with the result that the antireflection layer can be used universally.