Patent ID: 11915980
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device comprising:
a first fin structure and a second fin structure disposed over a substrate;
a dielectric isolation structure disposed on the substrate and extending from the first fin structure to the second fin structure;
a first interlayer dielectric layer disposed on the first fin structure and the second fin structure;
a first material layer disposed directly on the first interlayer dielectric layer;
a second material layer disposed directly on the first material layer, the second material being formed of a different material than the first material layer; and
a second interlayer dielectric layer extending through the second material layer, the first material layer, the first interlayer dielectric layer and a portion of the dielectric isolation structure, and wherein the second interlayer dielectric layer is formed of a different material than the first interlayer dielectric layer, and wherein a top surface of the second material layer is covered by the second interlayer dielectric layer, the top surface of the second material layer facing away from the substrate.