Patent ID: 11929393
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An integrated circuit device comprising a capacitor structure, wherein the capacitor structure includes:
a bottom electrode on a substrate;
a supporter on the bottom electrode;
a dielectric layer on the bottom electrode;
a top electrode on the dielectric layer; and
an interfacial layer between the dielectric layer and the top electrode,, wherein the bottom electrode includes:
a base electrode layer extending in a first direction that is perpendicular to a top surface of the substrate; and
a conductive capping layer arranged between a first side surface of the base electrode layer and the dielectric layer, and arranged between a top surface of the base electrode layer and the dielectric layer, and
wherein the conductive capping layer of the bottom electrode includes niobium nitride, the conductive capping layer of the bottom electrode does not extend onto the supporter, the dielectric layer includes hafnium, zirconium and niobium, and the interfacial layer includes niobium oxide.