Patent ID: 11869938
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor device comprising:
a substrate;
first, second, and third active patterns which each extend in a first horizontal direction on the substrate, and are spaced apart from one another in a second horizontal direction different from the first horizontal direction;
a field insulating layer on side walls of each of the first to third active patterns on the substrate;
a plurality of nanosheets, wherein first, second, and third groups of the plurality of nanosheets are on the first, second, and third active patterns respectively, wherein nanosheets of each of the first, second, and third groups of the plurality of nanosheets are spaced apart from each other in a vertical direction;
a first insulating structure in a first trench extending in the first horizontal direction between the first active pattern and the second active pattern, and at least partially extends into the field insulating layer;
a second insulating structure in a second trench extending in the first horizontal direction between the second active pattern and the third active pattern, and comprises a first insulating layer on side walls and a bottom surface of the second trench, and a second insulating layer in the second trench on the first insulating layer, wherein the second insulating structure at least partially extends into the field insulating layer;
a gate-cut extending in the first horizontal direction on the first insulating structure;
a gate electrode which extends in the second horizontal direction on the first to third active patterns and surrounds the plurality of nanosheets in the second horizontal direction;
a gate insulating layer between the gate electrode and the plurality of nanosheets, and between the gate electrode and the gate-cut; and
a source/drain region on at least one side of the gate electrode,
wherein the first insulating layer and the second insulating layer comprise different materials from each other,
wherein the first insulating structure and the first insulating layer comprise a same material, and
wherein an upper surface of the first insulating structure, an upper surface of the first insulating layer, and an upper surface of the second insulating layer are on a same plane as each other.