Abstract:
A memory device includes cell transistors on active regions defined by a device isolation layer on a substrate such that each cell transistor has a buried cell gate and a junction portion adjacent to and at least partially distal to the substrate in relation to the buried cell gate, an insulation pattern on the substrate and covering the cell transistors and the device isolation layer, and a bit line structure on the insulation pattern and connected to the junction portion. The bit line structure includes a buffer pattern on the pattern and having a thermal oxide pattern, a conductive line on the buffer pattern, and a contact extending from the conductive line to the junction portion through the buffer pattern and the insulation pattern.
Abstract:
Provided is a semiconductor device. The semiconductor device includes a semiconductor substrate having a contact region. An interlayer insulating layer is disposed on the semiconductor substrate. A lower contact plug passing through the interlayer insulating layer and electrically connected to the contact region is disposed. An interconnection structure is disposed on the interlayer insulating layer. An adjacent interconnection spaced apart from the interconnection structure is disposed on the interlayer insulating layer. A bottom surface of the interconnection structure includes a first part overlapping a part of an upper surface of the lower contact plug, and a second part overlapping the interlayer insulating layer.
Abstract:
A memory device includes cell transistors on active regions defined by a device isolation layer on a substrate such that each cell transistor has a buried cell gate and a junction portion adjacent to and at least partially distal to the substrate in relation to the buried cell gate, an insulation pattern on the substrate and covering the cell transistors and the device isolation layer, and a bit line structure on the insulation pattern and connected to the junction portion. The bit line structure includes a buffer pattern on the pattern and having a thermal oxide pattern, a conductive line on the buffer pattern, and a contact extending from the conductive line to the junction portion through the buffer pattern and the insulation pattern.
Abstract:
A semiconductor device includes an insulating interlayer over a substrate in a first region, the insulating layer including contact holes exposing a portion of a surface of the substrate, and contact plugs in the contact holes. The contact plugs include a stacked structure of a first barrier metal layer pattern and a first metal layer pattern. The semiconductor device also includes second metal layer patterns directly contacting with the contact plugs and an upper surface of the insulating interlayer. The second metal layer pattern consists is a metal material layer.
Abstract:
A semiconductor device includes a substrate including a cell array region including a cell active region. An insulating pattern is on the substrate. The insulating pattern includes a direct contact hole which exposes the cell active region and extends into the cell active region. A direct contact conductive pattern is in the direct contact hole and is connected to the cell active region. A bit line is on the insulating pattern. The bit line is connected to the direct contact conductive pattern and extends in a direction orthogonal to an upper surface of the insulating pattern. The insulating pattern includes a first insulating pattern including a non-metal-based dielectric material and a second insulating pattern on the first insulating pattern. The second insulating pattern includes a metal-based dielectric material having a higher dielectric constant than a dielectric constant of the first insulating pattern.
Abstract:
A method of forming a pattern includes forming a first level pattern layer on a feature layer on a substrate. The first level pattern layer includes a plurality of first line patterns and a plurality of first space burying patterns. The first line patterns extend parallel to one another in a first direction and the first space burying patterns extend parallel to one another in the first direction with first line patterns alternately disposed with first space burying patterns A portion of the plurality of first space burying patterns may be removed to form a second direction pattern space extending intermittently or continuously in the first level pattern layer. A second burying layer filling the second direction pattern space may be formed to form a network structure pattern. The feature layer may be etched with the network structure pattern as an etch mask to form a pattern of holes.
Abstract:
Semiconductor devices and methods of fabricating the same are disclosed. The methods include forming a first interlayer insulating layer and a conductive contact plug that penetrates the first interlayer insulating layer, forming a second interlayer insulating layer and a first interlayer wiring on the first interlayer insulating layer. The first interlayer wiring penetrates the second interlayer insulating layer and overlaps the first metal contact plug. The second interlayer insulating layer is etched using the first interlayer wiring as a mask until the first metal contact plug is exposed, and an exposed portion of the conductive contact plug is etched using the first interlayer wiring as the mask.
Abstract:
A memory device includes cell transistors on active regions defined by a device isolation layer on a substrate such that each cell transistor has a buried cell gate and a junction portion adjacent to and at least partially distal to the substrate in relation to the buried cell gate, an insulation pattern on the substrate and covering the cell transistors and the device isolation layer, and a bit line structure on the insulation pattern and connected to the junction portion. The bit line structure includes a buffer pattern on the pattern and having a thermal oxide pattern, a conductive line on the buffer pattern, and a contact extending from the conductive line to the junction portion through the buffer pattern and the insulation pattern.
Abstract:
Provided is a memory device. The memory device includes a substrate including a cell area and a peripheral area; gate line stacks and bit line stacks configured to vertically cross in the cell area; buried contacts disposed in areas, which are simultaneously shared by neighboring gate line stacks and neighboring bit line stacks; expanded landing pads including expanded portions connected to the buried contacts and expanded over adjacent bit line stacks, and disposed in a row; landing pads spaced apart from the expanded landing pads as a column, connected to the buried contacts, and having horizontal widths smaller than those of the expanded landing pads; and first storage nodes connected to the expanded portions of the expanded landing pads, and second storage nodes connected to the landing pads.
Abstract:
A semiconductor device including a plurality of active patterns, a plurality of first isolation layer patterns and a plurality of second isolation layer patterns may be provided. In particular, the active patterns may be arranged both in a first direction and in a second direction, and may protrude from a substrate and have a length in the first direction. The first isolation layer patterns may fill a first space, the first space provided between the active patterns and arranged in the first direction, and support two opposing sidewalls of neighboring active patterns. The second isolation layer patterns may fill a second space between the active patterns and the first isolation layer patterns. Accordingly, the active patterns of the semiconductor device may not collapse or incline because the first isolation layer patterns support the active patterns.