摘要:
According to one embodiment, a semiconductor memory device includes a stacked body, a semiconductor pillar, and a plurality of memory cells. The stacked body includes a plurality of stacked gate electrodes and inter-electrode insulating layers provided between the gate electrodes. The semiconductor pillar punches through the stacked body. The plurality of memory cells is provided in stacking direction. The memory cell includes a charge trap layer provided between the semiconductor pillar and the gate electrode via an air gap. The block insulating layer is provided between the charge trap layer and the gate electrode. Each of the plurality of memory cells is provided with a support portion configured to keep air gap distance between the charge trap layer and the semiconductor pillar.
摘要:
A method for manufacturing an electronic device using a closed-type transport container, includes: controlling relative humidity inside the closed-type transport container to be lower than ambient relative humidity outside the closed-type transport container on a particular interprocess transport path in which an intermediate product stored in the closed-type transport container is transported from a first manufacturing process to a second manufacturing process. The first manufacturing process allows basic compounds containing nitrogen atoms to be released from the intermediate product. The second manufacturing process is susceptible to degradation due to contamination by the basic compounds.
摘要:
A nonvolatile semiconductor memory device including a semiconductor substrate having a semiconductor layer and an insulating material provided on a surface thereof, a surface of the insulating material is covered with the semiconductor layer, and a plurality of memory cells provided on the semiconductor layer, the memory cells includes a first dielectric film provided by covering the surface of the semiconductor layer, a plurality of charge storage layers provided above the insulating material and on the first dielectric film, a plurality of second dielectric films provided on the each charge storage layer, a plurality of conductive layers provided on the each second dielectric film, and an impurity diffusion layer formed partially or overall at least above the insulating material and inside the semiconductor layer and at least a portion of a bottom end thereof being provided by an upper surface of the insulating material.
摘要:
A semiconductor memory includes a plurality of stripe-like active areas formed by stacking, in a direction perpendicular to a substrate, a plurality of layers extending parallel to the substrate, a first gate electrode formed on first side surfaces of the active areas, the first side surfaces being perpendicular to the substrate, a second gate electrode formed on second side surfaces of the active areas, the second side surfaces being perpendicular to the substrate. The layers are patterned in self-alignment with each other, intersections of the active areas and the first gate electrode form a plurality of memory cells, and the plurality of memory cells in an intersecting plane share the first gate electrode.
摘要:
A nonvolatile semiconductor memory device according to an embodiment includes memory strings which have a plurality of transistors including gate electrode films formed over sides of columnar semiconductor films on gate dielectric films in a height direction of the semiconductor films, and which are arranged in a matrix shape substantially perpendicularly above a substrate. The gate electrode films of the transistors at same height of the memory strings arranged in a first direction are connected to one another. A distance between the semiconductor films at least in a forming position of the transistor at an uppermost layer of the memory strings adjacent to each other in the first direction is smaller than double of thickness of the gate dielectric films.
摘要:
There is provided a nonvolatile storage device including a plurality of component memory layers. The plurality of component memory layers are stacked In a direction perpendicular to a layer surface. Each of the plurality of component memory layers includes a first wiring, a second wiring provided non-parallel to the first wiring and a stacked structure unit provided between the first wiring and the second wiring and including a recording layer. At least one of the first wiring and the second wiring includes a protruding portion provided on a portion opposed to the recording layer and protruding toward the recording layer side.
摘要:
A nonvolatile storage device having a plurality of unit memory layers, and a plurality of layer selection transistors is provided. The plurality of unit memory layers are laminated in a direction perpendicular to a layer surface of the unit memory layers. Each of the unit memory layers includes a plurality of first wirings, a plurality of second wirings provided non-parallel to the plurality of first wirings, and a recording layer provided between the plurality of first wirings and the plurality of second wirings. The plurality of layer selection transistors are connected to at least one of the plurality of first wirings and the plurality of second wirings of each of the unit memory layers, and collectively selects the at least one in the same plane.
摘要:
A semiconductor memory device has a semiconductor substrate, a plurality of word lines formed at predetermined intervals on the semiconductor substrate, each word line having a gate insulating film, a charge storage layer, a first insulating film, and a controlling gate electrode which are stacked in order, and including a metal oxide layer above the level of the gate insulating film, a second insulating film covering a side of the word line and a surface of the semiconductor substrate between the word lines, and having a film thickness of 15 nm or less, and a third insulating film formed between the word lines adjacent to each other such that a region below the level of the metal oxide layer has a cavity.
摘要:
A method of manufacturing a semiconductor device includes removing a part of a semiconductor substrate to form a protruding portion and a recess portion in a surface area of the semiconductor substrate, forming a first epitaxial semiconductor layer in the recess portion, forming a second epitaxial semiconductor layer on the protruding portion and the first epitaxial semiconductor layer, removing a first part of the second epitaxial semiconductor layer with a second part of the second epitaxial semiconductor layer left to expose a part of the first epitaxial semiconductor layer, and etching the first epitaxial semiconductor layer from the exposed part of the first epitaxial semiconductor layer to form a cavity under the second part of the second epitaxial semiconductor layer.
摘要:
According to the present invention, there is a provided a semiconductor device fabrication method having, forming a mask material in a surface portion of a semiconductor substrate, and forming a step having a projection by using the mask material; forming a dielectric film on the semiconductor substrate so as to fill the step and planarize an entire surface; annealing the dielectric film; etching back the dielectric film such that a surface of the dielectric film is positioned between upper and lower surfaces of the mask material; and removing the mask material to expose a surface of the projection of the semiconductor substrate.