Patent ID: 11881430
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor device, comprising:
a substrate including a field region and an active region;
a transistor on the substrate;
a first interlayer insulating film on the transistor;
a first connecting wire in the first interlayer insulating film;
a lower etching stopper film on the first interlayer insulating film;
a resistance pattern on the lower etching stopper film;
a first etching stopper film on the first connecting wire, the first etching stopper film extending in parallel with a top surface of the first interlayer insulating film;
a second etching stopper film spaced apart from the resistance pattern, the second etching stopper film extending in parallel with a top surface of the resistance pattern;
a third etching stopper film connecting the first etching stopper film and the second etching stopper film;
an upper etching stopper film between the resistance pattern and the second etching stopper film;
a second interlayer insulating film on the third etching stopper film;
a first wire via in the second interlayer insulating film, the first wire via being connected to the first connecting wire and passing through the lower etching stopper film and the first etching stopper film;
a first resistance via in the second interlayer insulating film, the first resistance via being connected to the resistance pattern and passing through the upper etching stopper film and the second etching stopper film;
a second connecting wire on the first wire via and the resistance via, the second connecting wire being connected to at least one of the first wire via and the resistance via;
a first etching stopper structure on the second connecting wire;
a second via penetrating the first etching stopper structure, the second via being connected to the second connecting wire; and
a second etching stopper structure under the first interlayer insulating film and penetrated by the first connecting wire,
wherein the first etching stopper structure has a different stack structure from the second etching stopper structure.