摘要:
The inventive concepts provide semiconductor memory devices and methods for fabricating the same. The semiconductor memory device may include a plurality of gates vertically stacked on a substrate, a vertical channel filling a channel hole vertically penetrating the plurality of gates, and a memory layer vertically extending on an inner sidewall of the channel. The vertical channel may include a lower channel filling a lower region of the channel hole and electrically connected to the substrate, and an upper channel filling an upper region of the channel hole and contacting the lower channel. The upper channel may extend along the memory layer and the lower channel in the upper region of the channel hole and may have a uniform thickness.
摘要:
A method of manufacturing a Three Dimensional (3D) semiconductor memory device can be provided by forming at least one trench in a plate stack structure to divide the plate stack structure into a plurality of sub-plate stack structures between forming a plurality of vertical active patterns in the plate stack structure and forming pads of a stepped structure from the plate stack structure.
摘要:
Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
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.
摘要:
Provided is a three dimensional semiconductor device. The device may include mold layers vertically and sequentially stacked, a conductive pattern between the stacked mold layers, a plugging pattern vertically penetrating the stacked mold layers, an intermediate pattern between the conductive pattern and the plugging pattern, and protective layer patterns between the mold layers and the plugging pattern, wherein the protective layer patterns are separated by the intermediate pattern.