摘要:
Provided is a method of fabricating a Schottky barrier transistor. The method includes (a) forming a pair of cavities for forming a source forming portion and a drain forming portion having a predetermined depth and parallel to each other and a channel forming portion having a fin shape between the cavities in a substrate;(b) filling the pair of cavities with a metal; (c) forming a channel, a source, and a drain by patterning the channel forming portion, the source forming portion, and the drain forming portion in a direction perpendicular to a lengthwise direction of the channel forming portion; (d) sequentially forming a gate oxide layer and a gate metal layer that cover the channel, the source, and the drain on the substrate; and (e) forming a gate electrode corresponding to the channel by patterning the gate metal layer, wherein one of the operations (b) through (e) further comprises forming a Schottky barrier by annealing the substrate.
摘要:
Provided is a method of fabricating a Schottky barrier transistor. The method includes (a) forming a pair of cavities for forming a source forming portion and a drain forming portion having a predetermined depth and parallel to each other and a channel forming portion having a fin shape between the cavities in a substrate; (b) filling the pair of cavities with a metal; (c) forming a channel, a source, and a drain by patterning the channel forming portion, the source forming portion, and the drain forming portion in a direction perpendicular to a lengthwise direction of the channel forming portion; (d) sequentially forming a gate oxide layer and a gate metal layer that cover the channel, the source, and the drain on the substrate; and (e) forming a gate electrode corresponding to the channel by patterning the gate metal layer, wherein one of the operations (b) through (e) further comprises forming a Schottky barrier by annealing the substrate.
摘要:
Provided is a method of fabricating a Schottky barrier transistor. The method includes (a) forming a pair of cavities for forming a source forming portion and a drain forming portion having a predetermined depth and parallel to each other and a channel forming portion having a fin shape between the cavities in a substrate; (b) filling the pair of cavities with a metal; (c) forming a channel, a source, and a drain by patterning the channel forming portion, the source forming portion, and the drain forming portion in a direction perpendicular to a lengthwise direction of the channel forming portion; (d) sequentially forming a gate oxide layer and a gate metal layer that cover the channel, the source, and the drain on the substrate; and (e) forming a gate electrode corresponding to the channel by patterning the gate metal layer, wherein one of the operations (b) through (e) further comprises forming a Schottky barrier by annealing the substrate.
摘要:
Provided is a semiconductor device that comprises a metal gate having a low sheet resistance characteristic and a high diffusion barrier characteristic and a method of fabricating the metal gate of the semiconductor device. The semiconductor device includes a metal gate formed on a gate insulating film, wherein the metal gate is formed of a metal nitride that contains Al or Si and includes upper and lower portions where the content of Al or Si is relatively high and a central portion where the content of Al or Si is relatively low.
摘要:
Provided is a method of fabricating a Schottky barrier transistor. The method includes (a) forming a pair of cavities for forming a source forming portion and a drain forming portion having a predetermined depth and parallel to each other and a channel forming portion having a fin shape between the cavities in a substrate; (b) filling the pair of cavities with a metal; (c) forming a channel, a source, and a drain by patterning the channel forming portion, the source forming portion, and the drain forming portion in a direction perpendicular to a lengthwise direction of the channel forming portion; (d) sequentially forming a gate oxide layer and a gate metal layer that cover the channel, the source, and the drain on the substrate; and (e) forming a gate electrode corresponding to the channel by patterning the gate metal layer, wherein one of the operations (b) through (e) further comprises forming a Schottky barrier by annealing the substrate.
摘要:
Provided is a semiconductor device that comprises a metal gate having a low sheet resistance characteristic and a high diffusion barrier characteristic and a method of fabricating the metal gate of the semiconductor device. The semiconductor device includes a metal gate formed on a gate insulating film, wherein the metal gate is formed of a metal nitride that contains Al or Si and includes upper and lower portions where the content of Al or Si is relatively high and a central portion where the content of Al or Si is relatively low.
摘要:
Nonvolatile memory devices may be fabricated to include a switching device on a substrate and/or a storage node electrically connected to the switching device. A storage node may include a lower metal layer electrically connected to the switching device, a first insulating layer, a middle metal layer, a second insulating layer, an upper metal layer, a carbon nanotube layer, and/or a passivation layer stacked on the lower metal layer.
摘要:
Example embodiments relate to a method of manufacturing a germanosilicide and a semiconductor device having the germanosilicide. A method according to example embodiments may include providing a substrate having at least a portion formed of silicon germanium. A metal layer may be formed on the silicon germanium. A thermal process may be performed on the substrate at a relatively high pressure to form the germanosilicide.
摘要:
According to one exemplary embodiment, a method for forming a field-effect transistor on a substrate comprises a step of forming a buffer layer on the substrate, where the buffer layer comprises ALD silicon dioxide. The buffer layer can be formed by utilizing a silicon tetrachloride precursor in an atomic layer deposition process, for example. The buffer layer comprises substantially no pin-hole defects and may have a thickness, for example, that is less than approximately 5.0 Angstroms. The method further comprises forming a high-k dielectric layer over the buffer layer. The high-k dielectric layer may be, for example, hafnium oxide, zirconium oxide, or aluminum oxide. According to this exemplary embodiment, the method further comprises forming a gate electrode layer over the high-k dielectric layer. The gate electrode layer may be polycrystalline silicon, for example.
摘要:
A semiconductor component having smooth, void-free conductive layers and a method for manufacturing the semiconductor component. Surface features such as gate structures are formed on a semiconductor substrate. A layer of insulating material is formed on the gate structures and a layer of polysilicon is formed on the layer of insulating material. The layer of polysilicon is annealed in a hydrogen ambient to redistribute the silicon atoms of the polysilicon layer. Redistribution of the atoms fills voids that may be present in the layer of polysilicon and smoothes the surface of the layer of polysilicon. Another layer of polysilicon is formed over the annealed layer of polysilicon. This polysilicon layer is annealed in a hydrogen ambient to redistribute the silicon atoms and smooth the surface of the polysilicon layer, thereby forming a subsequently annealed polysilicon layer. Control gate structures are formed from the subsequently annealed polysilicon layer.