Method for forming a structure with a hole

A method for forming a structure with a hole on a substrate is disclosed. The method may comprise: depositing a first structure on the substrate; etching a first part of the hole in the first structure; depositing a plug fill in the first part of the hole; depositing a second structure on top of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jongbloed, Bert, Pierreux, Dieter, van Aerde, Steven
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for forming a structure with a hole on a substrate is disclosed. The method may comprise: depositing a first structure on the substrate; etching a first part of the hole in the first structure; depositing a plug fill in the first part of the hole; depositing a second structure on top of the first structure; etching a second part of the hole substantially aligned with the first part of the hole in the second structure; and, etching the plug fill of the first part of the hole and thereby opening up the hole by dry etching. In this way 3-D NAND device may be provided.