Patent ID: 11955516
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A method for manufacturing a semiconductor device, the method comprising:
providing a substrate;
forming a plurality of active patterns extending in a first direction on the substrate;
forming a pre-gate structure extending in a second direction and intersecting the plurality of active patterns, the pre-gate structure including a pre-gate electrode, a pre-gate spacer, and a pre-gate capping pattern on the pre-gate electrode;
forming a gate separation trench by partially removing the pre-gate electrode, the pre-gate spacer, and the pre-gate capping pattern, a connecting spacer being formed by partially removing the pre-gate spacer; and
forming a gate separation structure filling the gate separation trench, the gate separation structure including a gate separation liner and a gate separation filling film on the gate separation liner, the gate separation liner of the gate separation structure extending along a top surface and sidewalls of the connecting spacer and contacting the connecting spacer, and a topmost surface of the gate separation liner and a top surface of the pre-gate capping pattern being on a same plane.