THREE-DIMENSIONAL SEMICONDUCTOR MEMORY DEVICES
First Claim
1. A three-dimensional semiconductor memory device, comprising:
- common source regions spaced apart from each other in a substrate and extending in a first direction;
an electrode structure between the common source regions adjacent to each other and extending in the first direction, the electrode structure including electrodes vertically stacked on the substrate;
first channel structures penetrating the electrode structure and including a first semiconductor pattern and a first vertical insulation layer; and
second channel structures between the first channel structures adjacent to each other and penetrating the electrode structure, the second channel structures including a second semiconductor pattern and a second vertical insulation layer, wherein the second vertical insulation layer surrounds the second semiconductor pattern and extends between the substrate and a bottom surface of the second semiconductor pattern, and wherein the second vertical insulation layer has a bottom surface lower than a bottom surface of the first vertical insulation layer.
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Accused Products
Abstract
A three-dimensional semiconductor memory device includes common source regions, an electrode structure between the common source regions, first channel structures penetrating the electrode structure, and second channel structures between the first channel structures and penetrating the electrode structures. The electrode structure includes electrodes vertically stacked on a substrate. The first channel structures include a first semiconductor pattern and a first vertical insulation layer. The second channel structures include a second vertical insulation layer surrounding a second semiconductor pattern. The second vertical insulation layer has a bottom surface lower than a bottom surface of the first vertical insulation layer.
34 Citations
21 Claims
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1. A three-dimensional semiconductor memory device, comprising:
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common source regions spaced apart from each other in a substrate and extending in a first direction; an electrode structure between the common source regions adjacent to each other and extending in the first direction, the electrode structure including electrodes vertically stacked on the substrate; first channel structures penetrating the electrode structure and including a first semiconductor pattern and a first vertical insulation layer; and second channel structures between the first channel structures adjacent to each other and penetrating the electrode structure, the second channel structures including a second semiconductor pattern and a second vertical insulation layer, wherein the second vertical insulation layer surrounds the second semiconductor pattern and extends between the substrate and a bottom surface of the second semiconductor pattern, and wherein the second vertical insulation layer has a bottom surface lower than a bottom surface of the first vertical insulation layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A three-dimensional semiconductor memory device, comprising:
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first impurity layers extending in a first direction and spaced apart from each other, the first impurity layers including first impurities; a second impurity layer extending in the first direction between the first impurity layers adjacent to each other, the second impurity layer including second impurities different from the first impurities; an electrode structure between the first impurity layers adjacent to each other and covering the second impurity layer, the electrode structure including a plurality of electrodes vertically stacked on a substrate; first channel structures on the substrate between the first impurity layers and penetrating the electrode structure; and second channel structures on the second impurity layer and penetrating the electrode structure. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A three-dimensional semiconductor memory device, comprising:
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common source regions spaced apart from each other in a substrate and extending in a first direction; an electrode structure on the substrate between the common source regions adjacent to each other and including electrodes vertically stacked on the substrate; first channel structures penetrating the electrode structure and electrically connected to the substrate; and second channel structures between the first channel structures adjacent to each other and penetrating the electrode structure and electrically separated from the substrate. - View Dependent Claims (16, 17, 18, 19, 20)
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21-27. -27. (canceled)
Specification