Abstract:
A semiconductor device is provided which includes a first fin-type pattern including a first side surface and a second side surface opposite to each other, a first trench of a first depth adjacent to the first side surface, a second trench of a second depth adjacent to the second side surface. The second depth differs from the first depth, and a first field insulating film partially fills the first trench and a second field insulating film partially fills the second trench. The first fin-type pattern has a lower portion, and an upper portion having a narrower width than the lower portion, and has a first stepped portion on a boundary between the upper portion and the lower portion. The first field insulating film includes a first lower field insulating film in contact with the lower portion, and a first upper field insulating film in contact with the upper portion.
Abstract:
A semiconductor device including a first insulating interlayer on a substrate; a second insulating interlayer on the first insulating interlayer; a gate structure extending through the first insulating interlayer and the second insulating interlayer on the substrate, a lower portion of the gate structure having a first width, and an upper portion of the gate structure having a second width that is greater than the first width and that gradually increases from a bottom toward a top thereof; and a spacer structure on a sidewall of the gate structure, a width of an upper portion of the spacer structure being less than a width of a lower portion of the spacer structure.
Abstract:
There is provided a semiconductor device capable of adjusting profiles of a gate electrode and a gate spacer using a hybrid interlayer insulating film. The semiconductor device includes a gate electrode on a substrate, a gate spacer being on a sidewall of the gate electrode and including an upper portion and a lower portion, a lower interlayer insulating film being on the substrate and overlapping with the lower portion of the gate spacer, and an upper interlayer insulating film being on the lower interlayer insulating film and overlapping with the upper portion of the gate spacer, wherein the lower interlayer insulating film is not interposed between the upper interlayer insulating film and the upper portion of the gate spacer.