Patent ID: 11901359
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method of manufacturing a semiconductor device, the method comprising:
forming active regions extending in a first direction on a substrate by removing a portion of the substrate;
forming a sacrificial structure extending in a second direction crossing the first direction, on the active regions;
forming a dummy active region by removing an upper portion of a first active region among the active regions from outside of the sacrificial structure;
forming source/drain regions on the active regions, at both sides of the sacrificial structure;
forming an interlayer insulating layer covering the source/drain regions;
removing the sacrificial structure and forming a gate structure in a region in which the sacrificial structure is removed;
forming an opening by removing a portion of the gate structure and a portion of the dummy active region under the gate structure; and
forming a gate separation portion by filling the opening with an insulating material.