摘要:
In a method of fabricating a capacitor, a lower electrode is formed, and a dielectric layer is formed on the lower electrode. An upper electrode is foamed on the dielectric layer opposite the lower electrode. A low-temperature capping layer is formed on the upper electrode at a temperature of less than about 300° C. Related devices and fabrication methods are also discussed.
摘要:
A capacitor may include a lower electrode structure, a dielectric layer and an upper electrode structure. The lower electrode structure may include a first lower pattern, a first deformation-preventing layer pattern and a second lower pattern. The first lower pattern may have a cylindrical shape. The first deformation-preventing layer pattern may be formed on an inner surface of the first lower pattern. The second lower pattern may be formed on the first deformation-preventing layer pattern. The dielectric layer may be formed on the lower electrode structure. The upper electrode structure may be formed on the dielectric layer. Thus, the capacitor may have a high capacitance and improved electrical characteristics.
摘要:
A capacitor in a semiconductor memory device comprises a lower electrode on a substrate that is formed of a conductive metal oxide having a rutile crystalline structure, a titanium oxide dielectric layer on the lower electrode that has a rutile crystalline structure and includes impurities for reducing a leakage current, and an upper electrode on the titanium oxide dielectric layer. A method of forming a capacitor in a semiconductor device comprise steps of forming a lower electrode on a substrate that includes a conductive metal oxide having a rutile crystalline structure, forming a titanium oxide dielectric layer on the lower electrode that has a rutile crystalline structure and impurities for reducing a leakage current, and forming an upper electrode on the titanium oxide dielectric layer.
摘要:
Provided is a semiconductor device including first, second and third source/drain regions. A first conductive plug in contact with the first source/drain regions, having a first width and a first height, and including a first material is provided. An interlayer insulating layer covering the first conductive plug and the substrate is disposed. A second conductive plug vertically penetrating the interlayer insulating layer to be in contact with the second source/drain regions, having a second width and a second height, and including a second material is provided. A third conductive plug vertically penetrating the interlayer insulating layer to be in contact with the third source/drain regions, having a third width and a third height, and including a third material is disposed. The second material includes a noble metal, a noble metal oxide or a perovskite-based conductive oxide.
摘要:
A plurality of metal patterns are disposed on a substrate. A support structure is provided between the plurality of metal patterns. The support structure has a supporter and a glue layer. Each of the plurality of metal patterns has a greater vertical length than a horizontal length on the substrate when viewed from a cross-sectional view. The supporter has a band gap energy of at least 4.5eV. The glue layer is in contact with the plurality of metal patterns. The supporter and the glue layer are formed of different materials.
摘要:
Provided is a semiconductor device including first, second and third source/drain regions. A first conductive plug in contact with the first source/drain regions, having a first width and a first height, and including a first material is provided. An interlayer insulating layer covering the first conductive plug and the substrate is disposed. A second conductive plug vertically penetrating the interlayer insulating layer to be in contact with the second source/drain regions, having a second width and a second height, and including a second material is provided. A third conductive plug vertically penetrating the interlayer insulating layer to be in contact with the third source/drain regions, having a third width and a third height, and including a third material is disposed. The second material includes a noble metal, a noble metal oxide or a perovskite-based conductive oxide.
摘要:
A plurality of metal patterns are disposed on a substrate. A support structure is provided between the plurality of metal patterns. The support structure has a supporter and a glue layer. Each of the plurality of metal patterns has a greater vertical length than a horizontal length on the substrate when viewed from a cross-sectional view. The supporter has a band gap energy of at least 4.5 eV. The glue layer is in contact with the plurality of metal patterns. The supporter and the glue layer are formed of different materials.
摘要:
In a method of forming a strontium ruthenate thin film using water vapor as an oxidizing agent, a strontium source and a ruthenium source are used. The strontium source includes a cyclopentadienyl (Cp) ligand, an alkoxide ligand, an alkyl ligand, an amide ligand or a halide ligand, and the ruthenium source includes a beta diketonate ligand.
摘要:
Provided are a semiconductor device configured to block a physical diffusion path by forming an oxide layer between barrier layers to prevent impurities from being diffused through the physical diffusion path between the barrier layers, and a method for fabricating the semiconductor device. The semiconductor device includes a gate insulation layer formed on a substrate, a first barrier layer formed on the gate insulation layer, an oxide layer formed on the first barrier layer, the oxide layer including an oxide formed by oxidizing a material included in the first barrier layer, a second barrier layer formed on the oxide layer, a gate electrode formed on the second barrier layer, and source/drains disposed at opposite sides of the gate electrode in the substrate.
摘要:
Provided are a semiconductor device configured to block a physical diffusion path by forming an oxide layer between barrier layers to prevent impurities from being diffused through the physical diffusion path between the barrier layers, and a method for fabricating the semiconductor device. The semiconductor device includes a gate insulation layer formed on a substrate, a first barrier layer formed on the gate insulation layer, an oxide layer formed on the first barrier layer, the oxide layer including an oxide formed by oxidizing a material included in the first barrier layer, a second barrier layer formed on the oxide layer, a gate electrode formed on the second barrier layer, and source/drains disposed at opposite sides of the gate electrode in the substrate.