Patent ID: 11961839
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A semiconductor device, comprising:
a substrate;
a first active pattern on the substrate and extending in a first direction;
first source/drain patterns in recesses in an upper portion of the first active pattern; and
a gate electrode on the first active pattern and extending in a second direction crossing the first direction,
wherein:
each of the first source/drain patterns includes a first semiconductor layer and a second semiconductor layer, which are sequentially provided in the recesses,
the first active pattern includes a first channel pattern at an upper portion thereof,
the first channel pattern includes a pair of first surfaces that face the first source/drain patterns, and a pair of second surfaces that connect the pair of first surfaces to each other and are overlapped with the gate electrode,
the first semiconductor layer includes first portions on the first surfaces and second portions on the second surfaces, and
the first portions of the first semiconductor layer is thicker than the second portions of the first semiconductor layer,
the first channel pattern includes a plurality of first layers vertically stacked on the substrate,
the plurality of first layers are connected to the first semiconductor layer.