Patent ID: 11875992
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor device comprising:
a substrate;
a lower electrode on the substrate, the lower electrode including a first lower electrode pattern, a second lower electrode pattern that is on the first lower electrode pattern, and a third lower electrode pattern that is on a side surface of the first lower electrode pattern;
a support pattern arranged adjacent to the second lower electrode pattern of the lower electrode;
a dielectric layer on the lower electrode; and
an upper electrode on the dielectric layer,
wherein the support pattern contacts a first portion of a sidewall of the second lower electrode pattern of the lower electrode,
wherein an extension portion of the third lower electrode pattern of the lower electrode is on a second portion of the sidewall and a top surface of the second lower electrode pattern of the lower electrode, and
wherein each of the third lower electrode pattern and the extension portion of the third lower electrode pattern of the lower electrode is selected from the group consisting of niobium oxide (NbO), niobium nitride (NbN), and niobium oxynitride (NbON).