Abstract:
A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.
Abstract:
A vertical tunnel field effect transistor (VTFET) including a fin structure protruding from a substrate including a source/drain region, an epitaxially-grown source/drain structure on the fin structure, a cap including pillar portions, the pillar portions covering side surfaces of the epitaxially-grown source/drain structure and partially covering side surfaces of a top portion of the fin structure, a gate insulator covering remaining portions of the side surfaces of the fin structure under the pillar portions of the cap, a work function metal gate on the gate insulator, and a separation pattern surrounding a bottom portion of a fin structure such that the work function metal gate is vertically between the cap and the separation pattern, the separation pattern electrically isolating the work function metal gate from the source/drain region, and a method of manufacturing the same may be provided.
Abstract:
Vertical field-effect transistor (VFET) devices and methods of forming VFET devices are provided. The methods may include forming a channel region that protrudes from an upper surface of a substrate in a vertical direction, forming a gate insulator layer on a side of the channel region, after forming the gate insulator layer, forming a top source/drain on the channel region, and forming a gate electrode on the gate insulator layer.
Abstract:
A vertical tunnel field effect transistor (VTFET) including a fin structure protruding from a substrate including a source/drain region, an epitaxially-grown source/drain structure on the fin structure, a cap including pillar portions, the pillar portions covering side surfaces of the epitaxially-grown source/drain structure and partially covering side surfaces of a top portion of the fin structure, a gate insulator covering remaining portions of the side surfaces of the fin structure under the pillar portions of the cap, a work function metal gate on the gate insulator, and a separation pattern surrounding a bottom portion of a fin structure such that the work function metal gate is vertically between the cap and the separation pattern, the separation pattern electrically isolating the work function metal gate from the source/drain region, and a method of manufacturing the same may be provided.
Abstract:
Semiconductor devices are provided. The semiconductor devices include active fins including a buffer layer disposed on a substrate and a channel layer disposed on the buffer layer and having a first second lattice constant higher than a lattice constant of the buffer layer, a gate structure covering the channel layer and intersecting the active fins, sidewall spacers disposed on both sidewalls of the gate structure, and capping layers disposed to contact lower surfaces of the sidewall spacers and having a width substantially the same as a width of the lower surfaces of the sidewall spacers.