Abstract:
First dopant regions and second dopant regions are provided at both sides of the gate structures. Conductive lines cross over the gate structures and are connected to the first dopant regions. Each of the conductive lines includes a conductive pattern and a capping pattern disposed on the conductive pattern. Contact structures are provided between the conductive lines and are connected to the second dopant regions. Each of the contact structures includes a lower contact pattern disposed on the second dopant region and an upper contact pattern disposed on the lower contact pattern. A bottom surface of the upper contact pattern is lower than a top surface of the conductive pattern.
Abstract:
A method of manufacturing a semiconductor device includes forming a plurality of conductive lines separated from one another in a first direction via a slender hole and extending in a second direction perpendicular to the first direction, forming a first insulation layer filling the slender hole between the plurality of conductive lines, forming a plurality of first isolated holes separated from one another between the plurality of conductive lines in the first direction and the second direction by patterning the first insulation layer, forming a liner layer in the first isolated holes, filling a second insulation layer having an etching selectivity with respect to the first insulation layer, in the first isolated holes on the liner layer and forming a plurality of second isolated holes between the conductive lines by removing the first insulation layer using the etching selectivity between the second insulation layer and the first insulation layer.
Abstract:
A method of manufacturing a wiring structure may include forming a first conductive pattern on a substrate, forming a hardmask on the first conductive pattern, forming a first spacer on sidewalls of the first conductive pattern and the hardmask, forming a first sacrificial layer pattern on a sidewall of the first spacer, forming a second spacer on a sidewall of the first sacrificial layer pattern, removing the first sacrificial layer pattern, and forming a third spacer on the second spacer, may be provided. The third spacer may contact an upper portion of the sidewall of the first spacer and define an air gap in association with the first and second spacers. The first spacer has a top surface substantially higher than a top surface of the first conductive pattern. The second spacer has a top surface substantially lower than the top surface of the first spacer.
Abstract:
A method of manufacturing a semiconductor device includes forming a plurality of conductive lines separated from one another in a first direction via a slender hole and extending in a second direction perpendicular to the first direction, forming a first insulation layer filling the slender hole between the plurality of conductive lines, forming a plurality of first isolated holes separated from one another between the plurality of conductive lines in the first direction and the second direction by patterning the first insulation layer, forming a liner layer in the first isolated holes, filling a second insulation layer having an etching selectivity with respect to the first insulation layer, in the first isolated holes on the liner layer and forming a plurality of second isolated holes between the conductive lines by removing the first insulation layer using the etching selectivity between the second insulation layer and the first insulation layer.