Etching compositions

The present disclosure is directed to etching compositions that are useful for, e.g., selectively removing one or both of titanium nitride (TiN) and cobalt (Co) from a semiconductor substrate without substantially forming a cobalt oxide hydroxide layer.

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Bibliographische Detailangaben
1. Verfasser: Kneer, Emil A
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present disclosure is directed to etching compositions that are useful for, e.g., selectively removing one or both of titanium nitride (TiN) and cobalt (Co) from a semiconductor substrate without substantially forming a cobalt oxide hydroxide layer.