Abstract:
Disclosed is a semiconductor device comprising an oxide semiconductor layer on a substrate and including a first part and a pair of second parts that are spaced apart from each other across the first part, a gate electrode on the first part of the oxide semiconductor layer, and a pair of electrodes on corresponding second parts of the oxide semiconductor layer. A first thickness of the first part of the oxide semiconductor layer is less than a second thickness of each second part of the oxide semiconductor layer. A number of oxygen vacancies in the first part of the oxide semiconductor layer is less than a number of oxygen vacancies in each second part of the oxide semiconductor layer.
Abstract:
A semiconductor device may include a substrate including an active pattern, a conductive filling pattern on an impurity region at an upper portion of the active pattern, a first spacer and a second spacer stacked on a sidewall of the conductive filling pattern in a horizontal direction, and a bit line structure on the conductive filling pattern. The impurity region may include impurities. The horizontal direction may be parallel to an upper surface of the substrate. The first spacer may include an insulating material containing the impurities.
Abstract:
A pattern formation method includes forming a first capping layer on a substrate, forming a recess that penetrates the first capping layer and an upper portion of the substrate, such that a non-penetrated portion of the first capping layer constitutes a first capping pattern, forming a second capping pattern that covers an inner sidewall of the recess, and forming a stack structure in the recess, such that the stack structure includes first stack patterns and second stack patterns that are alternately stacked, and the second capping pattern is between the substrate and a lateral surface of the stack structure.
Abstract:
Provided is a method of fabricating a semiconductor device, the method including forming interconnection structures extending parallel to each other on a substrate; performing a coating process and forming a liquid state silicon source material layer filling an area between the interconnection structures; performing a first annealing process, curing the liquid state silicon source material layer, and forming an amorphous silicon layer; and crystallizing the amorphous silicon layer and forming contact plugs.
Abstract:
Semiconductor devices, and methods of fabricating the same, include a metal-containing layer on a semiconductor layer, and a barrier-lowering portion between the metal-containing layer and the semiconductor layer. The barrier-lowering portion lowers a Schottky barrier height between the metal-containing layer and the semiconductor layer below a Schottky barrier height between a metal silicide layer and the semiconductor layer.