Patent ID: 11935943
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A semiconductor device comprising:
a substrate;
a first transistor in a first region of the substrate, the first transistor including:
a first active fin disposed in the first region of the substrate, and extending in a first direction;
a first gate electrode disposed in the first region of the substrate, and extending in a second direction to intersect the first active fin;
a first spacer having a first vertical portion on each of sidewalls of a first gate structure and a first horizontal portion extending from a lower end of the first vertical portion, and including a first concaved recess in a corner between the first vertical portion and the first horizontal portion; and
a first source and a first drain disposed in regions of the first active fin on opposite sides of the first gate structure; and

a second transistor in a second region of the substrate, the second transistor including:
a second active fin disposed in the second region of the substrate, and extending in the first direction;
a second gate electrode disposed in the second region of the substrate, and extending in the second direction;
a second spacer having a second vertical portion on each of sidewalls of a second gate structure and a second horizontal portion extending from a lower end of the second vertical portion, and including a second concaved recess in a corner between the second vertical portion and the second horizontal portion; and
a second source and a second drain disposed in regions of the second active fin on opposite sides of the second gate structures,
wherein the first and second concaved recesses partially penetrate the first and second spacers such that the first and second concaved recess do not expose the substrate, respectively.