摘要:
A method of manufacturing a semiconductor device includes forming insulation layers and sacrificial layers that are alternately and repeatedly stacked on top of each other a substrate, forming a vertical hole that penetrates the insulation layers and the sacrificial layers, and forming a vertical channel structure in the vertical hole. The forming the vertical channel structure includes forming a blocking insulation layer, a charge storage layer, a tunnel insulation layer, and a semiconductor pattern. The forming the blocking insulation layer includes forming a first oxidation target layer, oxidizing the first oxidation target layer to form a first sub-blocking layer, and forming a second sub-blocking layer. The first sub-blocking layer is formed between the second sub-blocking layer and an inner sidewall of the vertical hole.
摘要:
A nonvolatile memory device includes a gate structure including inter-gate insulating patterns that are vertically stacked on a substrate and gate electrodes interposed between the inter-gate insulating patterns, a vertical active pillar connected to the substrate through the gate structure, a charge-storing layer between the vertical active pillar and the gate electrode, a tunnel insulating layer between the charge-storing layer and the vertical active pillar, and a blocking insulating layer between the charge-storing layer and the gate electrode. The charge-storing layer include first and second charge-storing layers that are adjacent to the blocking insulating layer and the tunnel insulating layer, respectively. The first charge-storing layer includes a silicon nitride layer, and the second charge-storing layer includes a silicon oxynitride layer.
摘要:
A three-dimensional semiconductor device may include a substrate including a cell array region, a word line contact region, and a peripheral circuit region, gate electrodes stacked on the substrate to extend from the cell array region to the word line contact region, a channel hole penetrating the gate electrodes on the cell array region and exposing an active region of the substrate, a dummy hole penetrating the gate electrodes on the word line contact region and exposing a device isolation layer provided on the substrate, and a semiconductor pattern provided in the channel hole but not in the dummy hole.
摘要:
A nonvolatile memory device includes a gate structure including inter-gate insulating patterns that are vertically stacked on a substrate and gate electrodes interposed between the inter-gate insulating patterns, a vertical active pillar connected to the substrate through the gate structure, a charge-storing layer between the vertical active pillar and the gate electrode, a tunnel insulating layer between the charge-storing layer and the vertical active pillar, and a blocking insulating layer between the charge-storing layer and the gate electrode. The charge-storing layer include first and second charge-storing layers that are adjacent to the blocking insulating layer and the tunnel insulating layer, respectively. The first charge-storing layer includes a silicon nitride layer, and the second charge-storing layer includes a silicon oxynitride layer.
摘要:
A method of manufacturing a semiconductor device includes forming insulation layers and sacrificial layers that are alternately and repeatedly stacked on top of each other a substrate, forming a vertical hole that penetrates the insulation layers and the sacrificial layers, and forming a vertical channel structure in the vertical hole. The forming the vertical channel structure includes forming a blocking insulation layer, a charge storage layer, a tunnel insulation layer, and a semiconductor pattern. The forming the blocking insulation layer includes forming a first oxidation target layer, oxidizing the first oxidation target layer to form a first sub-blocking layer, and forming a second sub-blocking layer. The first sub-blocking layer is formed between the second sub-blocking layer and an inner sidewall of the vertical hole.
摘要:
Provided is a semiconductor device including gate structures provided on a substrate, a separation insulating layer interposed between the gate structures, and a plurality of cell pillars connected to the substrate through each gate structure. Each gate structure may include horizontal electrodes vertically stacked on the substrate, and an interval between adjacent ones of the cell pillars is non-uniform.
摘要:
Provided is a semiconductor device including gate structures provided on a substrate, a separation insulating layer interposed between the gate structures, and a plurality of cell pillars connected to the substrate through each gate structure. Each gate structure may include horizontal electrodes vertically stacked on the substrate, and an interval between adjacent ones of the cell pillars is non-uniform.
摘要:
A method of manufacturing a nonvolatile memory device includes forming a tunnel dielectric layer, a charge storage layer, and a hard mask layer on a substrate in sequential order. Active portions are defined by forming trenches in the substrate. A tunnel dielectric pattern, a preliminary charge storage pattern, and a hard mask pattern are formed on each of the active portions in sequential order by sequentially patterning the hard mask layer, the charge storage layer, the tunnel dielectric layer, and the substrate. A capping pattern is formed covering an upper surface of the trenches such that a first void remains in a lower portion of the trenches, the capping pattern including etch particles formed by etching the hard mask pattern through a sputtering etch process.
摘要:
A three-dimensional semiconductor device may include a substrate including a cell array region, a word line contact region, and a peripheral circuit region, gate electrodes stacked on the substrate to extend from the cell array region to the word line contact region, a channel hole penetrating the gate electrodes on the cell array region and exposing an active region of the substrate, a dummy hole penetrating the gate electrodes on the word line contact region and exposing a device isolation layer provided on the substrate, and a semiconductor pattern provided in the channel hole but not in the dummy hole.
摘要:
Provided are a three dimensional semiconductor memory device and a method of fabricating the same. In the three dimensional semiconductor memory device, a stack of gate electrodes and insulating layers may be formed on a substrate, a channel structure may extend through the stack and connect to the substrate. A blocking insulating layer, a charge storing layer and a tunnel insulating layer may be formed between each gate electrode and the channel structure. The tunnel insulating layer may include a high-k dielectric layer with a low charge trap site density. The tunnel insulating layer may also include a first and a second tunnel insulating layers, and the high-k dielectric layer is provided between the first and second tunnel insulating layers.