SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

A Semiconductor device and method for fabricating the same are provided. The method includes forming a trench in a substrate, forming a lower gate metal using a first gas, the lower gate metal burying at least a portion of the trench, forming a barrier metal on the lower gate metal, on the barrier m...

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Hauptverfasser: KIM Eun Tae, PARK Seong Hun, SOHN Woong Hee, KIM Ji Hoon, PARK Hee Sook, OH Jin Ho, CHO Youn Jae
Format: Patent
Sprache:eng
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Zusammenfassung:A Semiconductor device and method for fabricating the same are provided. The method includes forming a trench in a substrate, forming a lower gate metal using a first gas, the lower gate metal burying at least a portion of the trench, forming a barrier metal on the lower gate metal, on the barrier metal, forming an upper gate metal using a second gas different from the first gas and forming a capping film on the gate metal, the capping film filling the trench.