Patent ID: 11871553
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 15:
16. A semiconductor device, comprising:
a substrate including a logic cell region and a connection region;
an active pattern on each of the logic cell region and the connection region;
a device isolation layer covering a lower side surface of the active pattern, an upper portion of the active pattern protruding above the device isolation layer;
a gate electrode crossing the active pattern;
a source/drain pattern adjacent to a side of the gate electrode, the source/drain pattern filling a recess in the upper portion of the active pattern;
an intermediate connection layer on the gate electrode and the source/drain pattern, the intermediate connection layer including an active contact electrically connected to the source/drain pattern and a gate contact electrically connected to the gate electrode;
a first metal layer on the intermediate connection layer, the first metal layer including a first interconnection line, a second interconnection line, and a via electrically connecting the second interconnection line to the intermediate connection layer;
an etch stop layer between the intermediate connection layer and the first metal layer;
a penetration contact extended from the first metal layer toward a bottom surface of the substrate penetrating the connection region, an upper portion of the penetration contact protruding above the etch stop layer; and
a protection insulating pattern on the etch stop layer covering the upper portion of the penetration contact,
wherein a side surface of the upper portion of the penetration contact includes a first upper side surface and a second upper side surface on the first upper side surface,
the etch stop layer covers the first upper side surface,
the protection insulating pattern covers the second upper side surface, and
a top surface of the penetration contact is in direct contact with a bottom surface of the first interconnection line.