Abstract:
Provided are a graphene-metal bonding structure, a method of manufacturing the graphene-metal bonding structure, and a semiconductor device including the graphene-metal bonding structure. According to example embodiments, a graphene-metal bonding structure includes: a graphene layer; a metal layer on the graphene layer; and an intermediate material layer between the graphene layer and the metal layer. The intermediate material layer forms an edge-contact with the metal layer from boundary portions of a material contained in the intermediate material layer that contact the metal layer.
Abstract:
According to example embodiments, a two-dimensional (2D) material element may include a first 2D material and a second 2D material chemically bonded to each other. The first 2D material may include a first metal chalcogenide-based material. The second 2D material may include a second metal chalcogenide-based material. The second 2D material may be bonded to a side of the first 2D material. The 2D material element may have a PN junction structure. The 2D material element may include a plurality of 2D materials with different band gaps.
Abstract:
An interconnect structure may include a first dielectric layer including a trench, a first conductive layer in the trench and including a plurality of first graphene layers stacked in a direction from an inner surface of the trench toward a center of the trench, a second dielectric layer on the first dielectric layer and including a through hole extending to the trench, and a second conductive layer in the through hole.
Abstract:
Provided are a metal chalcogenide thin film and a method and device for manufacturing the same. The metal chalcogenide thin film includes a transition metal element and a chalcogen element, and at least one of the transition metal element and the chalcogen element having a composition gradient along the surface of the metal chalcogenide thin film, the composition gradient being an in-plane composition gradient. The metal chalcogenide thin film may be prepared by using a manufacturing method including providing a transition metal precursor and a chalcogen precursor on a substrate by using a confined reaction space in such a manner that at least one of the transition metal precursor and the chalcogen precursor forms a concentration gradient according to a position on the surface of the substrate; and heat-treating the substrate.
Abstract:
A boron nitride layer and a method of fabricating the same are provided. The boron nitride layer includes a boron nitride compound and has a dielectric constant of about 2.5 or less at an operating frequency of 100 kHz.
Abstract:
Disclosed herein are a method of forming a transition metal dichalcogenide thin film and a method of manufacturing a device including the same. The method of forming a transition metal dichalcogenide thin film includes: providing a substrate in a reaction chamber; depositing a transition metal dichalcogenide thin film on the substrate using a sputtering process that uses a transition metal precursor and a chalcogen precursor and is performed at a first temperature; and injecting the chalcogen precursor in a gas state and heat-treating the transition metal dichalcogenide thin film at a second temperature that is higher than the first temperature. The substrate may include a sapphire substrate, a silicon oxide (SiO2) substrate, a nanocrystalline graphene substrate, or a molybdenum disulfide (MoS2) substrate.
Abstract:
Provided are a wiring including a graphene layer and a method of manufacturing the wiring. The method may include growing a graphene layer on a substrate and doping the graphene layer with a metal. The graphene layer may be grown using a plasma of a hydrocarbon at a temperature of about 200° C. to about 600° C. by plasma enhanced chemical vapor deposition (PECVD).
Abstract:
An electronic device including a two-dimensional material is provided. The electronic device may include a substrate; a metal layer on a partial region of the substrate; a two-dimensional material layer over the metal layer and an upper surface of the substrate; and an insertion layer between the metal layer and the two-dimensional material layer.
Abstract:
An interconnect structure and an electronic apparatus including the interconnect structure are provided. The interconnect structure includes a conductive layer; a dielectric layer configured to surround at least a part of the conductive layer; and a diffusion barrier layer disposed between the conductive layer and the dielectric layer and configured to limit and/or prevent a conductive material of the conductive layer from diffusing into the dielectric layer, and at least one of the dielectric layer and the diffusion barrier layer includes a boron nitride layer of a low dielectric constant.
Abstract:
Disclosed are an electronic device including a two-dimensional material, and a method of fabricating the electronic device. The electronic device may include a first metal layer including a transition metal, a second metal layer on the first metal layer and including gold (Au), and a two-dimensional material layer between the first metal layer and the second metal layer. The two-dimensional material layer may include a transition metal dichalcogenide (TMD). The two-dimensional material layer may be formed as a chalcogen element diffuses into the second metal layer and reacts with the transition metal of the first metal layer adjacent to the second metal layer.