摘要:
A nonvolatile memory device comprises a channel pattern, a first interlayer dielectric film and a second interlayer dielectric film spaced apart from each other and stacked over each other, a gate pattern disposed between the first interlayer dielectric film and the second interlayer dielectric film, a trap layer disposed between the gate pattern and the channel pattern and a charge spreading inhibition layer disposed between the channel pattern and the first interlayer dielectric film and between the channel pattern and the second interlayer dielectric film. The charge spreading inhibition layer may include charges inside or on its surface. The charge spreading inhibition layer includes at least one of a metal oxide film or a metal nitride film or a metal oxynitride film having a greater dielectric constant than a silicon oxide film.
摘要:
Provided are a semiconductor device and a method of fabricating the same. The semiconductor device may include a charge storage structure and a gate. The charge storage structure is formed on a substrate. The gate is formed on the charge storage structure. The gate includes a lower portion formed of silicon and an upper portion formed of metal silicide. The upper portion of the gate has a width greater than that of the lower portion of the gate.
摘要:
A nonvolatile memory device and a method of forming a nonvolatile memory device are provided. The nonvolatile memory device includes an active region of a semiconductor substrate defined by a device isolation layer, a tunnel insulating structure disposed on the active region, and a charge storage structure disposed on the tunnel insulating structure. The nonvolatile memory device also includes a gate interlayer dielectric layer disposed on the charge storage structure, and a control gate electrode disposed on the gate interlayer dielectric layer. The charge storage structure includes an upper charge storage structure and a lower charge storage structure, and the upper charge storage structure has a higher impurity concentration than the lower charge storage structure.
摘要:
Provided are a semiconductor device and a method of fabricating the same. The semiconductor device may include a charge storage structure and a gate. The charge storage structure is formed on a substrate. The gate is formed on the charge storage structure. The gate includes a lower portion formed of silicon and an upper portion formed of metal silicide. The upper portion of the gate has a width greater than that of the lower portion of the gate.
摘要:
A nonvolatile memory device and a method of forming a nonvolatile memory device are provided. The nonvolatile memory device includes an active region of a semiconductor substrate defined by a device isolation layer, a tunnel insulating structure disposed on the active region, and a charge storage structure disposed on the tunnel insulating structure. The nonvolatile memory device also includes a gate interlayer dielectric layer disposed on the charge storage structure, and a control gate electrode disposed on the gate interlayer dielectric layer. The charge storage structure includes an upper charge storage structure and a lower charge storage structure, and the upper charge storage structure has a higher impurity concentration than the lower charge storage structure.
摘要:
A method of fabricating a semiconductor device includes forming a stacked structure in which 2n (here, n is an integer which is 2 or more) deposited sacrificial layers and 2n deposited insulating layers disposed on the 2n deposited sacrificial layers respectively are alternately deposited in a third direction perpendicular to a first direction and a second direction on a substrate having an upper surface extending in the first and second directions which are perpendicular to each other. Methods include forming a recess group including 2n−1 first recesses penetrating 20 through 2n−1 deposited sacrificial layers and forming a buried insulating layer group including 2n−1 buried insulating layers filling the 2n−1 first recesses respectively. A contact plug group including 2n contact plugs penetrating an uppermost deposited insulating layer of the 2n deposited insulating layers and the 2n−1 buried insulating layers may be formed.
摘要:
A semiconductor device includes a plurality of transistors disposed on a semiconductor substrate, a device isolation layer disposed around the transistors, a guard ring disposed to surround the device isolation layer and the transistors, and a guard region disposed between adjacent transistors.
摘要:
A nonvolatile semiconductor memory device including a vertical array structure comprised of bit lines and source lines arranged in the same direction as the bit lines, each source lines corresponding to the bit lines and memory cell strings vertically formed between each pair of the bit lines and source lines. Multiple strings of memory cells can be stacked in the vertical direction, and adjacent memory cell strings may share bit line or source line.
摘要:
A nonvolatile memory device includes an active region defined by a device isolation layer in a semiconductor substrate, a word line passing over the active region and a charge storage region defined by a crossing of the active region and the word line and disposed between the active region and the word line. The charge storage region is disposed at an oblique angle with respect to the word line.
摘要:
Provided are a semiconductor device and a method of fabricating the same. The semiconductor device may include a charge storage structure and a gate. The charge storage structure is formed on a substrate. The gate is formed on the charge storage structure. The gate includes a lower portion formed of silicon and an upper portion formed of metal silicide. The upper portion of the gate has a width greater than that of the lower portion of the gate.