Abstract:
A ferroelectric thin-film structure includes at least one first atomic layer and at least one second atomic layer. The first atomic layer includes a first dielectric material that is based on an oxide, and the second atomic layer includes both the first dielectric material and a dopant that has a bandgap greater than a bandgap of the dielectric material.
Abstract:
A semiconductor apparatus includes a plurality of semiconductor devices. The semiconductor devices each include a ferroelectric layer, a conductive metal oxide layer, and a semiconductor layer, between two electrodes. The conductive metal oxide layer may be between the ferroelectric layer and the semiconductor layer. The ferroelectric layer, the conductive metal oxide layer, and the semiconductor layer may all include a metal oxide. The conductive metal oxide layer may include one or more materials selected from the group consisting of an indium oxide, a zinc oxide, a tin oxide, and any combination thereof.
Abstract:
A semiconductor device includes a first transistor including a first channel layer of a first conductivity type, a second transistor provided in parallel with the first transistor and including a second channel layer of a second conductivity type, and a third transistor stacked on the first and second transistors. The third transistor may include a gate insulating film including a ferroelectric material. The third transistor may include third channel layer and a gate electrode that are spaced apart from each other in a thickness direction with the gate insulating film therebetween.
Abstract:
Provided is a ferroelectric thin-film structure including a semiconductor substrate, a first ferroelectric layer on the semiconductor substrate, and a second ferroelectric layer on the semiconductor substrate. The second ferroelectric layer is spaced apart from the first ferroelectric layer and has a different dielectric constant from the first ferroelectric layer. The first ferroelectric layer and the second ferroelectric layer may be different from each other in terms of the amount of a dopant contained therein, and may exhibit different threshold voltages when applied to transistors.
Abstract:
A method for transmitting data in a mobile device includes transmitting, to a reception device, a connection request message comprising information indicating whether the transmission device supports message transmission having temporal correlation; receiving, from the reception device, a connection response message comprising information indicating whether the reception device supports the message transmission in response to the connection request message; and if both the transmission device and the reception device support the message transmission, transmitting, to the reception device, at least two of messages having temporal correlation, the at least two of messages comprising identification information, wherein the identification information indicates that the at least two of messages have temporal correlation.
Abstract:
A method of preparing a ZnO nanowire, and a ZnO nanowire prepared by the method are provided. The method of preparing a ZnO nanowire includes: preparing a zinc chalcogenide solution by dissolving zinc chalcogenide in a solvent; applying the zinc chalcogenide solution onto a substrate; drying the zinc chalcogenide solution applied onto the substrate; and annealing the substrate in the presence of oxygen after the drying the zinc chalcogenide solution.
Abstract:
Disclosed are semiconductor fabrication methods and optical proximity correction (OPC) methods. The semiconductor fabrication method comprises performing OPC on a design pattern of a layout to generate a corrected layout, and forming a photoresist pattern on a substrate by using a photomask manufactured with the corrected layout. Performing the OPC includes generating shape points on a contour of the design pattern, producing a hash value of the shape point, selecting a first unique shape point that represents first shape points, determining a first correction bias of the first unique shape point, and creating a correction pattern by applying the first correction bias in common to the first shape points. Producing the hash value includes generating a query range around a target shape point and, based on geometry analysis in the query range, producing the hash value.
Abstract:
A ferroelectric structure includes a first polarization enhancement film on a ferroelectric film, wherein the ferroelectric film has a first net polarization in a first direction oriented from the ferroelectric film toward the first polarization enhancement film. The first polarization enhancement film has a second net polarization in a second direction crossing the first direction.
Abstract:
An electronic device includes a ferroelectric layer arranged on a channel region and a gate electrode arranged on the ferroelectric layer. The ferroelectric layer includes a plurality of first oxide monolayers and a second oxide monolayers that is arranged between the substrate and the gate electrode and include a material different from a material of the first oxide monolayers. The first oxide monolayers include oxide monolayers that are alternately formed and include materials different from one another.
Abstract:
Provided is a ferroelectric semiconductor device including a source and a drain having different polarities. The ferroelectric semiconductor may include a ferroelectric including zirconium oxide (ZrO2), hafnium oxide (HfO2), and/or hafnium-zirconium oxide (HfxZr1-xO, 0