Abstract: A method of fabricating a semiconductor device using a recess channel array is disclosed. A substrate is provided having a first region and a second region, including a first transistor in the first region including a first gate electrode partially filling a trench, and source and drain regions that are formed at both sides of the trench, and covered by a first insulating layer. A first conductive layer is formed on the substrate. A contact hole through which the drain region is exposed is formed by patterning the first conductive layer and the first insulating layer. A contact plug is formed that fills the contact hole. A bit line is formed that is electrically connected to the drain region through the contact plug, and simultaneously a second gate electrode is formed in the second region by patterning the first conductive layer.

Abstract: Provided is a trench-type capacitor. To form the capacitor, first and second active regions are disposed in a semiconductor substrate. Node patterns are disposed in the first active region. Each node pattern may have a conductive pattern and an insulating pattern, which are sequentially stacked. Impurity diffusion regions are disposed in the vicinity of the node patterns. Substrate connection patterns in electrical contact with the first and second active regions are disposed. Node connection patterns in electrical contact with the node patterns are disposed in the vicinity of the first and second active regions. In addition, a semiconductor device having the trench-type capacitor and a semiconductor module having the semiconductor device is provided.

Abstract: In a semiconductor device and associated methods, the semiconductor device includes a substrate, an insulation layer on the substrate, a conductive structure on the insulation layer, the conductive structure including at least one metal silicide film pattern, a semiconductor pattern on the conductive structure, the semiconductor pattern protruding upwardly from the conductive structure, a gate electrode at least partially enclosing the semiconductor pattern, the gate electrode being spaced apart from the conductive structure, a first impurity region at a lower portion of the semiconductor pattern, and a second impurity region at an upper portion of the semiconductor pattern.

Abstract: Channels of two transistors are vertically formed on portions of two opposite side surfaces of one active region, and gate electrodes are vertically formed on a device isolation layer contacting the channels of the active region. A common bit line contact plug is formed in the central portions of the active region, two storage node contact plugs are formed on both sides of the bit line contact plug, and an insulating spacer is formed on a side surface of the bit line contact plug. A word line, a bit line, and a capacitor are sequentially stacked on the semiconductor substrate, like a conventional semiconductor memory device.

Abstract: In a semiconductor device, the semiconductor device may include a first active structure, a first gate insulation layer, a first gate electrode, a first impurity region, a second impurity region and a contact structure. The first active structure may include a first lower pattern in a first region of a substrate and a first upper pattern on the first lower pattern. The first gate insulation layer may be formed on a sidewall of the first upper pattern. The first gate electrode may be formed on the first gate insulation layer. The first impurity region may be formed in the first lower pattern. The second impurity region may be formed in the first upper pattern. The contact structure may surround an upper surface and an upper sidewall of the first upper pattern including the second impurity region. Accordingly, the contact resistance between the contact structure and the second impurity region may be decreased and structural stability of the contact structure may be improved.

Abstract: An integrated circuit semiconductor device includes a first transistor formed at a lower substrate and configured with at least one of a vertical transistor and a planar transistor. A bonding insulation layer is formed on the first transistor, and an upper substrate is bonded on the bonding insulation layer. A second transistor configured with at least one of a vertical transistor and a planar transistor is formed at the upper substrate. The first transistor and the second transistor are connected by an interconnection layer.

Abstract: Embodiments according to the inventive concept can provide semiconductor devices including a substrate and a plurality of active pillars arranged in a matrix on the substrate. Each of the pillars includes a channel part that includes a channel dopant region disposed in a surface of the channel part. A gate electrode surrounds an outer surface of the channel part. The plurality of active pillars may be arranged in rows in a first direction and columns in a second direction crossing the first direction.

Abstract: In a semiconductor device, the semiconductor device may include a first active structure, a first gate insulation layer, a first gate electrode, a first impurity region, a second impurity region and a contact structure. The first active structure may include a first lower pattern in a first region of a substrate and a first upper pattern on the first lower pattern. The first gate insulation layer may be formed on a sidewall of the first upper pattern. The first gate electrode may be formed on the first gate insulation layer. The first impurity region may be formed in the first lower pattern. The second impurity region may be formed in the first upper pattern. The contact structure may surround an upper surface and an upper sidewall of the first upper pattern including the second impurity region. Accordingly, the contact resistance between the contact structure and the second impurity region may be decreased and structural stability of the contact structure may be improved.

Abstract: A vertical type integrated circuit device includes a substrate and a pillar vertically protruding from the substrate. The pillar includes a lower impurity region and an upper impurity region therein and a vertical channel region therebetween. A portion of the pillar including the lower impurity region therein includes a mesa laterally extending therefrom. The device further includes a first conductive line extending on a first sidewall of the pillar and electrically contacting the lower impurity region, and a second conductive line extending on a second sidewall of the pillar adjacent the vertical channel region. The second conductive line extends in a direction perpendicular to the first conductive line and is spaced apart from the mesa. Related devices and methods of fabrication are also discussed.

Abstract: According to some embodiments of the invention, a fin type transistor includes an active structure integrally formed with a silicon substrate. The active structure includes grooves that form blocking regions under source/drain regions. A gate structure is formed to cross the upper face of the active structure and to cover the exposed side surfaces of the lateral portions of the active structure. An effective channel length of a fin type transistor may be sufficiently ensured so that a short channel effect of the transistor may be prevented and the fin type transistor may have a high breakdown voltage.

Abstract: A method of fabricating a semiconductor device having a vertical channel transistor, the method including forming a hard mask pattern on a substrate, forming a preliminary active pillar by etching the substrate using the hard mask pattern as an etch mask, reducing a width of the preliminary active pillar to form an active pillar having a width less than that of the hard mask pattern, forming a lower source/drain region by implanting impurity ions into the substrate adjacent to the active pillar using the hard mask pattern as an ion implantation mask, and forming an upper source/drain region on the active pillar and vertically separated from the lower source/drain region.

Abstract: A semiconductor device may include a fin structure having source/drain regions and channel fins connected between source/drain patterns. A gate insulation layer may be provided on the channel fins. A gate electrode may include lower gate patterns and an upper gate pattern. The lower gate patterns may extend in a vertical direction and contact the gate insulation layer. The upper gate pattern may extend in a second horizontal direction substantially perpendicular to the first horizontal direction. The upper gate pattern may be connected to upper portions of the lower gate patterns.

Abstract: A semiconductor device includes a first active pattern protruding from a substrate, a second active pattern on the first active pattern, a gate electrode enclosing a sidewall of the second active pattern, a conductive layer pattern on the first active pattern, a first impurity region in the first active pattern, and a second impurity region at a surface portion of the second active pattern. The first active pattern extending along a predetermined direction may have a first region and a second region. The second active pattern may have a pillar structure and the conductive layer pattern may include a metal or a metal compound.

Abstract: A vertical pillar transistor may include a plurality of lower pillars, a plurality of upper pillars, a first insulation part, a second insulation part and a word line. The plurality of lower pillars protrudes substantially perpendicular to a substrate and is defined by a plurality of trenches. The plurality of lower pillars extends along a second direction and may be separated from each other along a first direction substantially perpendicular to the second direction. The plurality of upper pillars may be formed on the plurality of lower pillars. The plurality of upper pillars has a width substantially smaller than that of the plurality of lower pillars. The first insulation part has a substantially uniform thickness on a sidewall of each of the plurality of lower pillars. The second insulation part may be formed on the first insulation part to fill a gap between the adjacent upper pillars.

Abstract: Vertical channel semiconductor devices include a semiconductor substrate with a pillar having an upper surface. An insulated gate electrode is around a periphery of the pillar. The insulated gate electrode has an upper surface at a vertical level lower than the upper surface of the pillar to vertically space apart the insulated gate electrode from the upper surface of the pillar. A first source/drain region is in the substrate adjacent the pillar. A second source/drain region is disposed in an upper region of the pillar including the upper surface of the pillar. A contact pad contacts the entire upper surface of the pillar to electrically connect to the second source/drain region.

Abstract: There are provided a semiconductor device having a vertical transistor and a method of fabricating the same. The method includes preparing a semiconductor substrate having a cell region and a peripheral circuit region. Island-shaped vertical gate structures two-dimensionally aligned along a row direction and a column direction are formed on the substrate of the cell region. Each of the vertical gate structures includes a semiconductor pillar and a gate electrode surrounding a center portion of the semiconductor pillar. A bit line separation trench is formed inside the semiconductor substrate below a gap region between the vertical gate structures, and a peripheral circuit trench confining a peripheral circuit active region is formed inside the semiconductor substrate of the peripheral circuit region. The bit line separation trench is formed in parallel with the column direction of the vertical gate structures.

Abstract: A semiconductor device may include a substrate having a cell active region. A cell gate electrode may be formed in the cell active region. A cell gate capping layer may be formed on the cell gate electrode. At least two cell epitaxial layers may be formed on the cell active region. One of the at least two cell epitaxial layers may extend to one end of the cell gate capping layer and another one of the at least two cell epitaxial layers may extend to an opposite end of the cell gate capping layer. Cell impurity regions may be disposed in the cell active region. The cell impurity regions may correspond to a respective one of the at least two cell epitaxial layers.

Abstract: Embodiments according to the inventive concept can provide semiconductor devices including a substrate and a plurality of active pillars arranged in a matrix on the substrate. Each of the pillars includes a channel part that includes a channel dopant region disposed in a surface of the channel part. A gate electrode surrounds an outer surface of the channel part. The plurality of active pillars may be arranged in rows in a first direction and columns in a second direction crossing the first direction.

Abstract: A semiconductor device includes a first transistor, a second transistor, an insulation interlayer pattern and a capacitor. The first transistor is formed in a first region of a substrate. The first transistor has a pillar protruding upwardly from the substrate and an impurity region provided in an upper portion of the pillar. The second transistor is formed in a second region of the substrate. The insulation interlayer pattern is formed on the first region and the second region to cover the second transistor and expose an upper surface of the pillar. The insulation interlayer pattern has an upper surface substantially higher than the upper surface of the pillar in the first region. The capacitor is formed on the impurity region in the upper portion of the pillar and is electrically connected to the impurity region.

Abstract: In a semiconductor device, and a method of fabricating the same, the semiconductor device includes a protrusion extending from a substrate and a selective epitaxial growth (SEG) layer surrounding an upper portion of the protrusion, the SEG layer exposing sidewalls of a channel region of the protrusion.