Patent ID: 9165924
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. A vertical channel type nonvolatile memory device, comprising: a plurality of channels extending along a vertical direction from a semiconductor substrate and arranged along a first horizontal direction and a second horizontal direction crossing the first horizontal direction, wherein each of the channels includes first and second sides which are opposite to each other and parallel to the first horizontal direction; a first gate structure facing the first side of each of the channels while not facing other sides of each of the channels, and extending in the first horizontal direction to have a line shape, wherein the first gate structure includes first gate electrodes of first memory cells stacked along the vertical direction; a second gate structure facing the second side of each of the channels while not facing other sides of each of the channels, and extending in the first horizontal direction to have a line shape, wherein the second gate structure includes second gate electrodes of second memory cells stacked along the vertical direction; and an insulation layer positioned between two channels which is adjacent to each other in the first horizontal direction, wherein each of the channels has a rectangular pillar type including the first side, the second side, a third side between the first side and the second side, and a fourth side between the first side and the second side and opposite to the third side, and the insulation layer is in contact with the third and fourth sides of each of the channels.