Patent ID: 11881510
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A semiconductor device, comprising:
a plurality of channels spaced apart from each other in a vertical direction;
a first source or drain structure in contact with a first side surface of each of the plurality of channels;
a second source or drain structure in contact with a second side surface of each of the plurality of channels spaced apart from the first side surface of each of the plurality of channels in a first horizontal direction;
a gate structure including a gate electrode layer at least partially surrounding an upper surface of each of the plurality of channels, a lower surface of each of the plurality of channels, a third side surface of each of the plurality of channels, and a fourth side surface of each of the plurality of channels spaced apart from the third side surface of each of the plurality of channels in a second horizontal direction, and a gate insulating layer disposed between the gate electrode layer and each of the plurality of channels;
an inner spacer layer disposed on a side surface of the gate structure perpendicular to the first horizontal direction; and
an outer spacer layer disposed on an outer surface of the inner spacer layer,
wherein the first source or drain structure includes a first source or drain layer disposed on the first side surface of the plurality of channels and a second source or drain layer disposed on the first source or drain layer,
wherein the second source or drain structure includes a third source or drain layer disposed on the second side surface of the plurality of channels and a fourth source or drain layer disposed on the third source or drain layer, and
on a plane of the semiconductor device that passes through a portion of the gate electrode layer between the plurality of channels and is perpendicular to the vertical direction, a first distance between the first source or drain layer and the third source or drain layer along a first horizontal line that passes through the third side surface of the plurality of channels and is parallel to the first horizontal direction is greater than a second distance between the first source or drain layer and the third source or drains layer along a second horizontal line that passes between the third side surface of the plurality of channels and the fourth side surface of the plurality of channels and is parallel to the first horizontal direction.