Abstract:
A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
Abstract:
A non-volatile memory device having a vertical structure includes a semiconductor layer, a sidewall insulation layer extending in a vertical direction on the semiconductor layer, and having one or more protrusion regions, first control gate electrodes arranged in the vertical direction on the semiconductor layer, and respectively contacting one of portions of the sidewall insulation layer where the one or more protrusion regions are not formed and second control gate electrodes arranged in the vertical direction on the semiconductor layer, and respectively contacting one of the one or more protrusion regions.
Abstract:
A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
Abstract:
A method of manufacturing a semiconductor device, the method including forming a structure on a substrate, the structure including a metal pattern, at least a portion of the metal pattern being exposed; forming a preliminary buffer oxide layer to cover the structure, a metal oxide layer being formed at the exposed portion of the metal pattern; and deoxidizing the metal oxide layer so that the preliminary buffer oxide layer is transformed into a buffer oxide layer.
Abstract:
A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
Abstract:
A method of manufacturing a vertical memory device is disclosed. In the method, a plurality of insulation layers and a plurality of first sacrificial layers are alternately stacked on a substrate. A plurality of holes is formed through the plurality of insulation layers and first sacrificial layers. A plasma treatment process is performed to oxidize the first sacrificial layers exposed by the holes. A plurality of second sacrificial layer patterns project from sidewalls of the holes. A blocking layer pattern, a charge storage layer pattern and a tunnel insulation layer pattern are formed on the sidewall of the holes that cover the second sacrificial layer patterns. A plurality of channels is formed to fill the holes. The first sacrificial layers and the second sacrificial layer patterns are removed to form a plurality of gaps exposing a sidewall of the blocking layer pattern. A plurality of gate electrodes is formed to fill the gaps.