Abstract: A semiconductor device includes a substrate, a first recess formed in the substrate, a first source/drain filling the first recess, a vertical metal resistor on the first source/drain, and an insulating liner separating the metal resistor from the first source/drain, with the vertical metal resistor being between two gate electrodes.

Abstract: A semiconductor device includes a substrate including an active region, a gate structure, source/drain regions, ones of the source/drain regions having an upper surface in which a recessed region is formed, a contact plug on the source/drain regions and extending in a direction substantially perpendicular to an upper surface of the substrate from an interior of the recessed region, a metal silicide film on an internal surface of the recessed region and including a first portion between a bottom surface of the recessed region and a lower surface of the contact plug and a second portion between a side wall of the recessed region and a side surface of the contact plug, and a metal layer connected to an upper portion of the metal silicide film and on a side surface of a region of the contact plug.

Abstract: Semiconductor devices may have a first semiconductor element including first active regions that are doped with a first conductivity-type impurity and that are on a semiconductor substrate, a first gate structure between the first active regions, and first contacts connected to the first active regions, respectively; and a second semiconductor element including second active regions that are doped with a second conductivity-type impurity different from the first conductivity-type impurity and that are on the semiconductor substrate, a second gate structure between the second active regions, and second contacts connected to the second active regions, respectively, and having a second length greater than a first length of each of the first contacts in a first direction parallel to an upper surface of the semiconductor substrate.

Abstract: A semiconductor device and a method of manufacturing the same, the semiconductor device including a substrate; an insulating layer on the substrate, the insulating layer including a first trench and a second trench therein, the second trench having an aspect ratio that is smaller than an aspect ratio of the first trench; a barrier layer in the first trench and the second trench; a seed layer on the barrier layer in the first trench and the second trench; a first bulk layer on the seed layer and filled in the first trench; and a second bulk layer on the seed layer and filled in the second trench, wherein an average grain size of the second bulk layer is larger than an average grain size of the first bulk layer.

Abstract: A method for fabricating a semiconductor device is provided. The method includes forming a gate electrode and a source or drain disposed at opposite sides of the gate electrode, forming an interlayer insulating layer covering the gate electrode and the source or drain, forming a contact hole exposing the source or drain in the interlayer insulating layer, forming a silicide layer on a bottom surface of the contact hole, and forming a spacer on sidewalls of the contact hole and an upper surface of the silicide layer.

Abstract: A semiconductor device includes a substrate having an upper surface, a plurality of active fins on the substrate, a gate electrode crossing the plurality of active fins, and at each side of the gate electrode, a source/drain region on the plurality of active fins. The source/drain region may include a plurality of first regions extending from the active fins, and a second region between each of the plurality of first regions. The second region may have a second germanium concentration greater than the first germanium concentration. The source/drain region may be connected to a contact plug, and may have a top surface that has a wave shaped, or curved surface. The top surface may have a larger surface area than a top surface of the contact plug.

Abstract: Semiconductor devices may include a structure on a substrate, an insulating interlayer, a metal silicide pattern, a first barrier pattern, a second barrier pattern and a metal pattern. The structure may include silicon. The insulating interlayer may include a contact hole exposing a surface of the structure. The metal silicide pattern may be in a lower portion of the contact hole, and the metal silicide pattern may directly contact the exposed surface of the structure. The first barrier pattern may directly contact an upper surface of the metal silicide pattern and a sidewall of the contact hole. The first barrier pattern may include a metal nitride. The second barrier pattern may be formed on the first barrier pattern. The second barrier pattern may include a metal nitride. The metal pattern may be formed on the second barrier pattern. The metal pattern may be in the contact hole.

Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes an isolation layer defining active portions of the substrate that are spaced apart from each other in a direction. The semiconductor device includes an epitaxial layer on the active portions. The semiconductor device includes a metal silicide layer on the epitaxial layer. Moreover, the semiconductor device includes a contact structure that only partially overlaps the metal silicide layer on the epitaxial layer. Related methods of forming semiconductor devices are also provided.

Abstract: A semiconductor device may include a substrate including an NMOS region and a PMOS region, and having a protrusion pattern; first and second gate structures respectively formed on the NMOS region and the PMOS region of the substrate, crossing the protrusion pattern, and extending along a first direction that is parallel to an upper surface of the substrate; first and second source/drain regions formed on both sides of the first and second gate structures; and first and second contact plugs respectively formed on the first and second source/drain regions, wherein the first contact plug and the second contact plug are asymmetric. Methods of manufacturing are also provided.

Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes an isolation layer defining active portions of the substrate that are spaced apart from each other in a direction. The semiconductor device includes an epitaxial layer on the active portions. The semiconductor device includes a metal silicide layer on the epitaxial layer. Moreover, the semiconductor device includes a contact structure that only partially overlaps the metal silicide layer on the epitaxial layer. Related methods of forming semiconductor devices are also provided.

Abstract: A semiconductor device may include a substrate including an NMOS region and a PMOS region, and having a protrusion pattern; first and second gate structures respectively formed on the NMOS region and the PMOS region of the substrate, crossing the protrusion pattern, and extending along a first direction that is parallel to an upper surface of the substrate; first and second source/drain regions formed on both sides of the first and second gate structures; and first and second contact plugs respectively formed on the first and second source/drain regions, wherein the first contact plug and the second contact plug are asymmetric. Methods of manufacturing are also provided.

Abstract: An integrated circuit device including a substrate having at least one fin-shaped active region, the at least one fin-shaped active region extending in a first direction, a gate line extending on the at least one fin-shaped active region in a second direction, the second direction intersecting with the first direction, a conductive region on a portion of the at least one fin-shaped active region at one side of the gate line, and a contact plug extending from the conductive region in a third direction, the third direction being perpendicular to a main plane of the substrate, may be provided. The contact plug may include a metal plug, a conductive barrier film on the conductive region, the conductive barrier film surrounding a sidewall and a bottom surface of the metal plug, the conductive barrier film including an N-rich metal nitride film, and a metal silicide film between the conductive region and the conductive barrier film.

Abstract: A semiconductor device includes an active fin partially protruding from an isolation pattern on a substrate, a gate structure on the active fin, a source/drain layer on a portion of the active fin adjacent to the gate structure, a source/drain layer on a portion of the active fin adjacent to the gate structure, a metal silicide pattern on the source/drain layer, and a plug on the metal silicide pattern. The plug includes a second metal pattern, a metal nitride pattern contacting an upper surface of the metal silicide pattern and covering a bottom and a sidewall of the second metal pattern, and a first metal pattern on the metal silicide pattern, the first metal pattern covering an outer sidewall of the metal nitride pattern. A nitrogen concentration of the first metal pattern gradually decreases according to a distance from the outer sidewall of the metal nitride pattern.

Abstract: A method for fabricating a semiconductor device is provided. The method includes forming a gate electrode and a source or drain disposed at opposite sides of the gate electrode, forming an interlayer insulating layer covering the gate electrode and the source or drain, forming a contact hole exposing the source or drain in the interlayer insulating layer, forming a silicide layer on a bottom surface of the contact hole, and forming a spacer on sidewalls of the contact hole and an upper surface of the silicide layer.

Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes an isolation layer defining active portions of the substrate that are spaced apart from each other in a direction. The semiconductor device includes an epitaxial layer on the active portions. The semiconductor device includes a metal silicide layer on the epitaxial layer. Moreover, the semiconductor device includes a contact structure that only partially overlaps the metal silicide layer on the epitaxial layer. Related methods of forming semiconductor devices are also provided.

Abstract: A semiconductor device includes a substrate having an upper surface, a plurality of active fins on the substrate, a gate electrode crossing the plurality of active fins, and at each side of the gate electrode, a source/drain region on the plurality of active fins. The source/drain region may include a plurality of first regions extending from the active fins, and a second region between each of the plurality of first regions. The second region may have a second germanium concentration greater than the first germanium concentration. The source/drain region may be connected to a contact plug, and may have a top surface that has a wave shaped, or curved surface. The top surface may have a larger surface area than a top surface of the contact plug.

Abstract: A method of forming a semiconductor device can be provided by forming an opening that exposes a surface of an elevated source/drain region. The size of the opening can be reduced and a pre-amorphization implant (PAI) can be performed into the elevated source/drain region, through the opening, to form an amorphized portion of the elevated source/drain region. A metal-silicide can be formed from a metal and the amorphized portion.

Abstract: A semiconductor device may include a substrate including an NMOS region and a PMOS region, and having a protrusion pattern; first and second gate structures respectively formed on the NMOS region and the PMOS region of the substrate, crossing the protrusion pattern, and extending along a first direction that is parallel to an upper surface of the substrate; first and second source/drain regions formed on both sides of the first and second gate structures; and first and second contact plugs respectively formed on the first and second source/drain regions, wherein the first contact plug and the second contact plug are asymmetric. Methods of manufacturing are also provided.

Abstract: There is provided a system and method for creating model of a subsurface region based on multiple depth values. The method includes selecting seeds that represent a starting location within a desired horizon surfaces and generating a plurality of candidate horizons from the selected seeds. A number of depth values from the candidate horizons may be combined into a representative depth value and an uncertainty may be computed based on discrepancies among the depth values. A model of the subsurface region may be created using the depth values and the uncertainty.

Abstract: A method of forming a semiconductor device can be provided by forming an opening that exposes a surface of an elevated source/drain region. The size of the opening can be reduced and a pre-amorphization implant (PAI) can be performed into the elevated source/drain region, through the opening, to form an amorphized portion of the elevated source/drain region. A metal-silicide can be formed from a metal and the amorphized portion.