Semiconductor device

A semiconductor device includes a landing pad on a substrate, a lower electrode on the landing pad and connected to the landing pad, the lower electrode including an outer portion, the outer portion including first and second regions, and an inner portion inside the outer portion, a dielectric film...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Park, Young-Lim, Ahn, Se Hyoung, Jung, Kyoo Ho, An, Chang Mu, Kang, Sang Yeol
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A semiconductor device includes a landing pad on a substrate, a lower electrode on the landing pad and connected to the landing pad, the lower electrode including an outer portion, the outer portion including first and second regions, and an inner portion inside the outer portion, a dielectric film on the lower electrode to extend along the first region of the outer portion, and an upper electrode on the dielectric film, wherein the outer portion of the lower electrode includes a metal dopant, a concentration of the metal dopant in the first region of the outer portion being different from a concentration of the metal dopant in the second region of the outer portion.