Patent ID: 11910593
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. A semiconductor device comprising:
a trench in a substrate;
a gate electrode filling a part of the trench;
a source/drain region adjacent to the gate electrode and laterally overlapping a part of the gate electrode;
a contact plug connected to the source/drain region;
a landing pad on the contact plug;
an etch stop layer on the landing pad and exposing at least a part of the landing pad;
a lower electrode connected to the landing pad;
a first electrode support on sidewalls of the lower electrode and spaced apart from the etch stop layer, the first electrode support comprising an insulating material;
a second electrode support on the sidewalls of the lower electrode and spaced apart from the first electrode support, the second electrode support comprising a conductive material;
an insulating spacer electrically isolating the second electrode support from the lower electrode;
an upper electrode; and
a dielectric layer on the lower electrode, the first electrode support and the second electrode support extending along profiles of the lower electrode, the first electrode support, and the second electrode support such that the dielectric layer is between the upper electrode and the first electrode support, and between the upper electrode and the lower electrode.