SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

The present invention relates to a capacitor having improved capacitance, low leakage current, and excellent reliability, and a manufacturing method thereof. According to the present invention, a manufacturing method of a semiconductor device includes the steps of: forming a lower electrode having a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIL, DEOK SIN, KIM, BEOM YONG, LEE, HUN
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a capacitor having improved capacitance, low leakage current, and excellent reliability, and a manufacturing method thereof. According to the present invention, a manufacturing method of a semiconductor device includes the steps of: forming a lower electrode having a high aspect ratio; forming an interface layer by sequentially performing a low-pressure first plasma process and a high-pressure second plasma process on the surface of the lower electrode; forming a dielectric layer on the interface layer; and forming an upper electrode on the dielectric layer. 본 기술은 캐패시턴스 향상, 낮은 누설 전류, 우수한 신뢰성의 캐패시터 및 그 제조 방법에 관한 것으로, 본 기술에 따른 반도체장치 제조 방법은 고종횡비의 하부전극을 형성하는 단계; 상기 하부전극의 표면에 대해 저압의 제1플라즈마처리 및 고압의 제2플라즈마처리를 순차적으로 진행하여 계면층을 형성하는 단계; 상기 계면층 상에 유전층을 형성하는 단계; 및 상기 유전층 상에 상부전극을 형성하는 단계를 포함할 수 있다.