摘要:
According to one embodiment, a gate structure including a gate insulation pattern, a gate pattern and a gate mask is formed on a channel region of a substrate to form a semiconductor device. A spacer is formed on a surface of the gate structure. An insulating interlayer pattern is formed on the substrate including the gate structure, and an opening is formed through the insulating interlayer pattern corresponding to an impurity region of the substrate. A conductive pattern is formed in the opening and a top surface thereof is higher than a top surface of the insulating interlayer pattern. Thus, an upper portion of the conductive pattern is protruded from the insulating interlayer pattern. A capping pattern is formed on the insulating interlayer pattern, and a sidewall of the protruded portion of the conductive pattern is covered with the capping pattern. Accordingly, the capping pattern compensates for a thickness reduction of the gate mask.
摘要:
A semiconductor device capable of suppressing void migration is provided. The semiconductor device includes a dummy region extending in a first direction substantially perpendicular to a second direction in which a word line extends. In addition, an isolation layer pattern may not cut the dummy region in the second direction. Consequently, leaning of the dummy region and void migration are prevented. A method of fabricating the semiconductor device is also provided.
摘要:
A semiconductor device includes a semiconductor substrate and recess trenches formed on the semiconductor substrate. The recess trenches are arranged to extend along a first direction. Terminal regions of adjacent ones of the recess trenches are offset relative to each other along a second direction substantially perpendicular to the first direction.
摘要:
According to one embodiment, a gate structure including a gate insulation pattern, a gate pattern and a gate mask is formed on a channel region of a substrate to form a semiconductor device. A spacer is formed on a surface of the gate structure. An insulating interlayer pattern is formed on the substrate including the gate structure, and an opening is formed through the insulating interlayer pattern corresponding to an impurity region of the substrate. A conductive pattern is formed in the opening and a top surface thereof is higher than a top surface of the insulating interlayer pattern. Thus, an upper portion of the conductive pattern is protruded from the insulating interlayer pattern. A capping pattern is formed on the insulating interlayer pattern, and a sidewall of the protruded portion of the conductive pattern is covered with the capping pattern. Accordingly, the capping pattern compensates for a thickness reduction of the gate mask.
摘要:
Example embodiments relate to a method of forming a recess and a method of manufacturing a semiconductor device having the same. The method includes forming a field region defining an active region in a substrate. The active region extends in a first direction in the substrate. The method further includes forming a preliminary recess extending in a second direction different from the first direction and crossing the active region in the substrate, plasma-oxidizing the substrate to form a sacrificial oxide layer along a surface of the substrate having the preliminary recess, and removing portions of the sacrificial oxide layer and the active region by plasma etching to form a recess having a width larger than a width of the preliminary recess, where an etch rate of the active region is one to two times greater than an etch rate of the sacrificial oxide layer.
摘要:
In a semiconductor device and a method of manufacturing the same, a substrate is defined into active and non-active regions by a device isolation layer and a recessed portion is formed on the active region. A gate electrode includes a gate insulation layer on an inner sidewall and a bottom of the recessed portion, a lower electrode on the gate insulation layer and an inner spacer on the lower electrode in the recessed portion, and an upper electrode that is positioned on the inner spacer and connected to the lower electrode. Source and drain impurity regions are formed at surface portions of the active region of the substrate adjacent to the upper electrode. Accordingly, the source and drain impurity regions are electrically insulated by the inner spacer in the recessed portion of the substrate like a bridge, to thereby sufficiently prevent gate-induced drain leakage (GIDL) at the gate electrode.
摘要:
A semiconductor device capable of suppressing void migration is provided. The semiconductor device includes a dummy region extending in a first direction substantially perpendicular to a second direction in which a word line extends. In addition, an isolation layer pattern may not cut the dummy region in the second direction. Consequently, leaning of the dummy region and void migration are prevented. A method of fabricating the semiconductor device is also provided.
摘要:
In one embodiment, a semiconductor device has an active region defined by an isolation layer formed inside an STI trench that includes an upper trench and a lower trench having a substantially curved cross-sectional profile under the upper trench so that the lower trench is in communication with the upper trench. Since the upper trench has a sidewall tapered with a positive slope, a good gap filling property can be obtained when filling the upper trench with an insulating layer. By forming a void in the lower trench, a dielectric constant at the bottom of the isolation layer is lower than a dielectric constant at an oxide layer, thereby improving the isolation property. The isolation layer includes a first insulating layer formed inside only the upper trench and covering an inner wall of the upper trench in the form of a spacer.
摘要:
A transistor and method of fabricating the transistor are disclosed. The transistor is disposed in an active region of a substrate defined by an isolation region and includes a gate electrode and associated source/drain regions. The isolation region includes an upper isolation region and an lower isolation region, wherein the upper isolation region is formed with sidewalls having, at least in part, a positive profile.
摘要:
A transistor and method of fabricating the transistor are disclosed. The transistor is disposed in an active region of a substrate defined by an isolation region and includes a gate electrode and associated source/drain regions. The isolation region includes an upper isolation region and an lower isolation region, wherein the upper isolation region is formed with sidewalls having, at least in part, a positive profile.