Method for increasing the capacitance of a semiconductor capacitors

This invention relates to improved semiconductor capacitors that are particularly useful for manufacturing improved dynamic random access memory (DRAM), among other semiconductor devices. Described is a method of increasing the capacitance of semiconductor capacitors by providing a first solid-state...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Holmes, Steven J, Black, Charles, Frank, David J, Furukawa, Toshiharu, Hakey, Mark C, Horak, David V, Ma, William Hsioh-Lien, Milkove, Keith R, Guarini, Kathryn W
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:This invention relates to improved semiconductor capacitors that are particularly useful for manufacturing improved dynamic random access memory (DRAM), among other semiconductor devices. Described is a method of increasing the capacitance of semiconductor capacitors by providing a first solid-state electrode pattern on a semiconductor medium, etching topographic features on said first electrode pattern in a manner effective in increasing the surface area of said first electrode pattern, depositing a dielectric layer upon said electrode pattern that substantially conforms to said topographic features, and depositing a second solid-state electrode pattern upon said dielectric layer and sufficiently insulated from said first solid-state electrode pattern so as to create a capacitance with said first solid-state electrode pattern.