摘要:
Semiconductor memory devices and methods of forming the semiconductor devices may be provided. The semiconductor memory devices may include a channel portion of an active pillar that may be formed of a semiconductor material having a charge mobility greater than a charge mobility of silicon. The semiconductor devices may also include a non-channel portion of the active pillar including a semiconductor material having a high silicon content.
摘要:
Semiconductor memory devices and methods of forming the semiconductor devices may be provided. The semiconductor memory devices may include a channel portion of an active pillar that may be formed of a semiconductor material having a charge mobility greater than a charge mobility of silicon. The semiconductor devices may also include a non-channel portion of the active pillar including a semiconductor material having a high silicon content.
摘要:
According to example embodiments, a nonvolatile memory device includes a plurality of cell strings on a horizontal semiconductor layer. Each of the cell strings including a plurality of memory cells stacked in a direction perpendicular to the horizontal semiconductor layer. According to example embodiments, a programming method of the nonvolatile memory device includes setting up bitlines corresponding the cell strings, setting up a plurality of string select lines connected to the cell strings, and applying a negative voltage lower to a ground select line. The ground select line is connected to a plurality of ground select transistors between the memory cells and the semiconductor layer. The string select lines extend in a direction intersecting the bitlines. The negative voltage is lower than a ground voltage.
摘要:
Semiconductor memory devices and methods of forming the semiconductor devices may be provided. The semiconductor memory devices may include a channel portion of an active pillar that may be formed of a semiconductor material having a charge mobility greater than a charge mobility of silicon. The semiconductor devices may also include a non-channel portion of the active pillar including a semiconductor material having a high silicon content.
摘要:
Semiconductor devices are provided including an active pillar protruding from a substrate; a first gate electrode and a second gate electrode adjacent to a sidewall of the active pillar and vertically overlapping with each other, the first and second gate electrodes being insulated from each other; a first intergate insulating layer covering a first surface of the first gate electrode; and a second intergate insulating layer covering a second surface, opposite the first surface, of the second gate electrode and spaced apart from the first intergate insulating layer. The first intergate insulating layer and the second intergate insulating layer define an air gap therebetween.
摘要:
According to example embodiments of inventive concepts, a semiconductor memory devices includes: a plurality of memory blocks that each include a plurality of stack structures, global bit lines connected in common to the plurality of memory blocks, block selection lines configured to control electrical connect between the global bit lines and one of the plurality of memory blocks, and vertical selection lines configured to control electrical connected between the global bit lines and one of the plurality of stack structures. Each of the plurality of stack structures includes a plurality of local bit lines, first vertical word lines and second vertical word lines crossing first sidewalls and second sidewalls respectfully of the plurality of stack structures, first variable resistive elements between the plurality of stack structures and the first vertical word lines, and second variable resistive elements between the plurality of stack structures and the second vertical word lines.
摘要:
A semiconductor memory device includes a substrate including a cell region and an interconnection region, adjacent first and second rows of vertical channels extending vertically from the substrate in the cell region, and layers of word lines stacked on the substrate. Each layer includes a first word line through which the first row of vertical channels passes and a second word line through which the second row of vertical channels passes, and the word lines include respective word line pads extending into the interconnection region. An isolation pattern separates the first and second word lines in the cell region and the interconnection region. First and second pluralities of contact plugs are disposed on opposite sides of the isolation pattern in the interconnection region and contact the word line pads.
摘要:
A three-dimensional semiconductor memory device may include gap-fill insulating layers extending upward from a substrate, an electrode structure delimited by sidewalls of the gap-fill insulating layers, vertical structures provided between adjacent ones of the gap-fill insulating layers to penetrate the electrode structure, and at least one separation pattern extending along the gap-fill insulating layers and penetrating at least a portion of the electrode structure. The separation pattern may include at least one separation semiconductor layer.
摘要:
A plurality of vertical channels of semiconductor material are formed to extend in a vertical direction through the plurality of insulation layers and the plurality of conductive patterns, a gate insulating layer between the conductive pattern and the vertical channels that insulates the conductive pattern from the vertical channels. Conductive contact regions of the at least two of the conductive patterns are in a stepped configuration. An etch stop layer is positioned on the conductive contact regions, wherein the etch stop layer has a first portion on a first one of the plurality of conductive patterns and has a second portion on a second one of the plurality of conductive patterns, wherein the first portion is of a thickness that is greater than a thickness of the second portion.
摘要:
A nonvolatile memory is provided which includes a plurality of channel layers and a plurality of insulation layers alternately stacked on a substrate in a direction perpendicular to the substrate, each of the plurality of channel layers including a plurality of channel films extending along a first direction on a plane parallel with the substrate; a plurality of conductive materials extending from a top of the channel layers and the insulation layers up to a portion adjacent to the substrate in a direction perpendicular to the substrate through areas among channel films of each channel layer; a plurality of information storage films provided between the channel films of the channel layers and the conductive materials; and a plurality of bit lines connected to the channel layers, respectively, wherein the conductive materials, the information storage films, and the channel films of the channel layers form a three-dimensional memory cell array, wherein the conductive materials form a plurality of groups, and wherein a distance between the groups is longer than a distance between conductive materials in each other.