Abstract:
A vertical non-volatile memory device may include a mold structure including first and second insulation patterns and a first gate electrode, a semiconductor pattern extending through the mold structure in a first direction, a first charge insulation layer between the first insulation pattern and the semiconductor pattern, a second charge insulation layer spaced apart from the first charge insulation layer and between the second insulation pattern and the semiconductor pattern, a charge storage layer between the first and second charge insulation layers and between the first gate electrode and the semiconductor pattern, and a first blocking insulation layer between the first gate electrode and the charge storage layer, and a first length in the first direction of the first gate electrode is shorter than a second length in the first direction of a first surface of the charge storage layer which is in contact with the first blocking insulation layer.
Abstract:
A semiconductor memory device and a method of fabricating the same. The device includes a plurality of gates vertically stacked on a top surface of a substrate with an epitaxial layer formed in the substrate, a vertical channel vertically penetrating the gates to be electrically connected to the epitaxial layer, and a memory layer provided between the vertical channel and the gates. The epitaxial layer has a top surface positioned at a level between a bottom surface of the lowermost one of the gates and the top surface of the substrate.
Abstract:
Methods of forming a semiconductor device are provided. The methods may include forming first and second layers that are alternately and repeatedly stacked on a substrate, and forming an opening penetrating the first and second layers. The methods may also include forming a first semiconductor pattern in the opening. The methods may additionally include forming an insulation pattern on the first semiconductor pattern. The methods may further include forming a second semiconductor pattern on the insulation pattern. The methods may also include providing dopants in the first semiconductor pattern. Moreover, the methods may include thermally treating a portion of the first semiconductor pattern to form a third semiconductor pattern.
Abstract:
Disclosed is a three-dimensional semiconductor memory device including a carbon-containing layer on a substrate, a plurality of electrode interlayer dielectric layers and a plurality of electrode layers that are alternately stacked on the carbon-containing layer, a cell vertical pattern that penetrates at least some of the electrode interlayer dielectric layers and the electrode layers, and a semiconductor pattern between the cell vertical pattern and the carbon-containing layer. The substrate includes a plurality of first grains. The semiconductor pattern includes a plurality of second grains. An average size of the second grains is less than an average size of the first grains.
Abstract:
A semiconductor memory device includes a stack including gate electrodes and insulating layers that are alternately and repeatedly stacked on a substrate. A cell channel structure penetrates the stack. The cell channel structure includes a first semiconductor pattern contacting the substrate and a first channel pattern on the first semiconductor pattern. The first semiconductor pattern extends to a first height from a surface of the substrate to a top surface of the first semiconductor pattern. A dummy channel structure on the substrate and spaced apart from the stack. The dummy channel structure includes a second semiconductor pattern contacting the substrate and a second channel pattern on the second semiconductor pattern. The second semiconductor pattern extends to a second height from the surface of the substrate to a top surface of the second semiconductor pattern. The first height is greater than the second height.
Abstract:
A semiconductor device includes a gate stacking structure, a channel structure, and a horizontal conductive layer. The gate stacking structure may include a plurality of gate electrodes and a plurality of insulation layers that are alternately stacked. The channel structure may be provided with an inner portion extending into the gate stacking structure and a protruded portion that protrudes from one surface of the gate stacking structure. The horizontal conductive layer may be connected to the protruded portion of the channel structure. In this case, the channel structure may include a semiconductor layer. The semiconductor layer may include a polycrystalline region in at least the protruded portion and including a polycrystalline semiconductor material and in a channel region positioned in the inner portion and having a crystal structure different from a crystal structure of the polycrystalline region.
Abstract:
An apparatus is provided for depositing a thin film. The apparatus includes a chamber, a susceptor disposed in the chamber and supporting a substrate, a reflection housing disposed outside the chamber, a light source unit disposed in the reflection housing and irradiating light to the susceptor, and a light controlling unit blocking at least a portion of an irradiation path of the light to control an irradiation area of the light on the susceptor. At least a portion of the light controlling unit is disposed in the reflection housing.
Abstract:
A semiconductor memory device and a method of fabricating the same. The device includes a plurality of gates vertically stacked on a top surface of a substrate with an epitaxial layer formed in the substrate, a vertical channel vertically penetrating the gates to be electrically connected to the epitaxial layer, and a memory layer provided between the vertical channel and the gates. The epitaxial layer has a top surface positioned at a level between a bottom surface of the lowermost one of the gates and the top surface of the substrate.