Patent ID: 11910592
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A capacitor, comprising:
a lower electrode;
a dielectric layer structure on the lower electrode, the dielectric layer structure including a plurality of dielectric layers and a single insert layer structure between ones of the plurality of dielectric layers; and
an upper electrode on the dielectric layer structure;
wherein the single insert layer structure includes at least a first zirconium oxide layer, an aluminum oxide layer, and a second zirconium oxide layer stacked sequentially,
wherein the dielectric layer structure includes a plurality of aluminum oxide layers,
wherein the single insert layer structure includes the plurality of aluminum oxide layers spaced apart from each other and the single insert layer structure comprising the plurality of aluminum oxide layers is higher than a central portion in a vertical direction of the dielectric layer structure, and
wherein a thickness of each of the plurality of aluminum oxide layers is less than a thickness of the first zirconium oxide layer and the second zirconium oxide layer and a sum of thicknesses of the aluminum oxide layers in the dielectric layer structure is 1 Å to 3 Å.