Abstract:
A method of manufacturing a semiconductor memory device and a semiconductor memory device, the method including providing a substrate that includes a cell array region and a peripheral circuit region; forming a mask pattern that covers the cell array region and exposes the peripheral circuit region; growing a semiconductor layer on the peripheral circuit region exposed by the mask pattern such that the semiconductor layer has a different lattice constant from the substrate; forming a buffer layer that covers the cell array region and exposes the semiconductor layer; forming a conductive layer that covers the buffer layer and the semiconductor layer; and patterning the conductive layer to form conductive lines on the cell array region and to form a gate electrode on the peripheral circuit region.
Abstract:
Semiconductor memory devices are provided. A semiconductor memory device includes a substrate. The semiconductor memory device includes a plurality of memory cell transistors vertically stacked on the substrate. The semiconductor memory device includes a first conductive line connected to a source region of at least one of the plurality of memory cell transistors. The semiconductor memory device includes a second conductive line connected to a plurality of gate electrodes of the plurality of memory cell transistors. Moreover, the semiconductor memory device includes a data storage element connected to a drain region of the at least one of the plurality of memory cell transistors.
Abstract:
Provided is a semiconductor device. The semiconductor device includes a capacitor structure including a plurality of lower electrodes, a dielectric layer that covers surfaces of the plurality of lower electrodes, and an upper electrode on the dielectric layer. The semiconductor device further includes a support structure that supports the plurality of lower electrodes. The support structure includes a first support region that covers sidewalls of one of the plurality of lower electrodes, and an opening that envelops the first support region when the semiconductor device is viewed in plan view.
Abstract:
A semiconductor device including a plurality of pillars on a semiconductor substrate; and a support pattern in contact with some lateral surfaces of the pillars and connecting the pillars with one another, wherein the support pattern includes openings that expose other lateral surfaces of the pillars, each of the pillars includes a first pillar upper portion in contact with the support pattern and a second pillar upper portion spaced apart from the support pattern, and the second pillar upper portion has a concave slope.
Abstract:
A method of manufacturing a semiconductor memory device and a semiconductor memory device, the method including providing a substrate that includes a cell array region and a peripheral circuit region; forming a mask pattern that covers the cell array region and exposes the peripheral circuit region; growing a semiconductor layer on the peripheral circuit region exposed by the mask pattern such that the semiconductor layer has a different lattice constant from the substrate; forming a buffer layer that covers the cell array region and exposes the semiconductor layer; forming a conductive layer that covers the buffer layer and the semiconductor layer; and patterning the conductive layer to form conductive lines on the cell array region and to form a gate electrode on the peripheral circuit region.
Abstract:
A method of forming a semiconductor device includes forming a molding layer and a supporter layer on a substrate including an etch stop layer, forming a mask layer on the supporter layer, forming a first edge blocking layer on the mask layer, forming a mask pattern by etching the mask layer, forming a hole, forming a lower electrode in the hole, forming a supporter mask layer on the supporter layer, forming a second edge blocking layer on the supporter mask layer, forming a supporter mask pattern by patterning the supporter mask layer, forming a supporter opening passing through the supporter layer, removing the molding layer, forming a capacitor dielectric layer and an upper electrode on the lower electrode, forming an interlayer insulating layer on the upper electrode, and planarizing the interlayer insulating layer. The hole passes through the supporter layer, the molding layer and the etch stop layer.
Abstract:
A semiconductor device includes storage electrodes on a substrate and one or more supporters configured to couple one or more portions of the storage electrodes. The semiconductor device may include multiple non-intersecting supporters extending in parallel to a surface of the substrate. At least one supporter may have an upper surface that is substantially coplanar with upper surfaces of the storage electrodes. The storage electrodes may include a capacitor dielectric layer that conformally covers one or more surfaces of the storage electrodes and one or more supporters. A storage electrode may include upper and lower storage electrodes coupled together. The upper and lower storage electrodes may have different horizontal widths.
Abstract:
A method of forming a semiconductor device includes forming a molding layer and a supporter layer on a substrate including an etch stop layer, forming a mask layer on the supporter layer, forming a first edge blocking layer on the mask layer, forming a mask pattern by etching the mask layer, forming a hole, forming a lower electrode in the hole, forming a supporter mask layer on the supporter layer, forming a second edge blocking layer on the supporter mask layer, forming a supporter mask pattern by patterning the supporter mask layer, forming a supporter opening passing through the supporter layer, removing the molding layer, forming a capacitor dielectric layer and an upper electrode on the lower electrode, forming an interlayer insulating layer on the upper electrode, and planarizing the interlayer insulating layer. The hole passes through the supporter layer, the molding layer and the etch stop layer.
Abstract:
A semiconductor memory device may include a substrate, a bit line structure extending in one direction on the substrate, the bit line structure including a sidewall, a storage node contact on the sidewall of the bit line structure, first and second spacers between the sidewall of the bit line structure and the storage node contact, the first spacer separated from the second spacer by a space between the first spacer and the second spacer, an interlayer dielectric layer on the bit line structure, the interlayer dielectric layer including a bottom surface, a spacer capping pattern extending downward from the bottom surface of the interlayer dielectric layer toward the space between the first and second spacers, and a landing pad structure penetrating the interlayer dielectric layer, the landing pad structure coupled to the storage node contact.
Abstract:
Semiconductor memory devices are provided. A semiconductor memory device includes a substrate. The semiconductor memory device includes a plurality of memory cell transistors vertically stacked on the substrate. The semiconductor memory device includes a first conductive line connected to a source region of at least one of the plurality of memory cell transistors. The semiconductor memory device includes a second conductive line connected to a plurality of gate electrodes of the plurality of memory cell transistors. Moreover, the semiconductor memory device includes a data storage element connected to a drain region of the at least one of the plurality of memory cell transistors.