OXIDE/NITRIDE STACKED IN FINFET SPACER PROCESS

OXIDE/NITRIDE STACKED IN FINFET SPACER PROCESS

In a FinFET integrated circuit, the fins are formed with a body thickness in the body area and then thickened in the source/drain area outside the body to improve conductivity. The thickening is performed with epitaxial deposition while the gates are covered by a composite gate cover layer to preven...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: BEINTNER JOCHEN C
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:In a FinFET integrated circuit, the fins are formed with a body thickness in the body area and then thickened in the source/drain area outside the body to improve conductivity. The thickening is performed with epitaxial deposition while the gates are covered by a composite gate cover layer to prevent thickening of the gates, which may short the gate to the source/drain.