摘要:
A method of forming a layer, including forming an insulation layer having an opening on a single crystalline substrate, the opening partially exposing an upper face of the substrate, forming a first seed layer in the opening, converting an upper portion of the first seed layer to a first amorphous layer, converting the first amorphous layer to a second seed layer, forming a second amorphous layer on the second seed layer, and converting the second amorphous layer to a single crystalline layer.
摘要:
In a semiconductor device and a method of manufacturing the semiconductor device, a plug and a channel structure are formed. The plug fills an opening and the channel structure extends upwardly from the plug. The channel structure has a substantially vertical sidewall. The opening is formed through an insulation structure located on a substrate. The plug and the channel structure comprise a material in a single crystalline state that is changed from an amorphous state by an irradiation of a laser beam. The channel structure is doped with impurities such as boron, phosphorus or arsenic.
摘要:
A method of fabricating a transistor device includes forming a non-crystalline germanium layer on a seed layer. The non-crystalline germanium layer is selectively locally heated to about a melting point thereof to form a single-crystalline germanium layer on the seed layer. The non-crystalline germanium layer may be selectively locally heated, for example, by applying a laser to a portion of the non-crystalline germanium layer. Related devices are also discussed.
摘要:
A vertical semiconductor device, a DRAM device, and associated methods, the vertical semiconductor device including single crystalline active bodies vertically disposed on an upper surface of a single crystalline substrate, each of the single crystalline active bodies having a first active portion on the substrate and a second active portion on the first active portion, and the first active portion having a first width smaller than a second width of the second active portion, a gate insulating layer on a sidewall of the first active portion and the upper surface of the substrate, a gate electrode on the gate insulating layer, the gate electrode having a linear shape surrounding the active bodies, a first impurity region in the upper surface of the substrate under the active bodies, and a second impurity region in the second active portion.
摘要:
In a vertical-type semiconductor device, a method of manufacturing the same and a method of operating the same, the vertical-type semiconductor device includes a single-crystalline semiconductor pattern having a pillar shape provided on a substrate, a gate surrounding sidewalls of the single-crystalline semiconductor pattern and having an upper surface lower than an upper surface of the single-crystalline semiconductor pattern, a mask pattern formed on the upper surface of the gate, the mask pattern having an upper surface coplanar with the upper surface of the single-crystalline semiconductor pattern, a first impurity region in the substrate under the single-crystalline semiconductor pattern, and a second impurity region under the upper surface of the single-crystalline semiconductor pattern. The vertical-type pillar transistor formed in the single-crystalline semiconductor pattern may provide excellent electrical properties. The mask pattern is not provided on the upper surface of the single-crystalline semiconductor pattern in the second impurity region, to thereby reduce failures of processes.
摘要:
A semiconductor device includes a trench isolation region provided on a substrate and defining first and second active regions separated from each other. A first semiconductor pillar protruding upward from the first active region is provided. A second semiconductor pillar protruding upward from the second active region is provided. A first gate mask extending to cross over the first and second active regions is provided. The first gate mask surrounds upper sidewalls of the first and second semiconductor pillars. A first gate line formed below the first gate mask, separated from the first and second active regions, and surrounding parts of sidewalls of the first and second semiconductor pillars is provided.
摘要:
In a vertical-type non-volatile memory device, first and second single-crystalline semiconductor pillars are arranged to face each other on a substrate. Each of the first and second single-crystalline semiconductor pillars has a rectangular parallelepiped shape with first, second, third and fourth sidewalls. A first tunnel oxide layer, a first charge storage layer and a first blocking dielectric layer are sequentially stacked on the entire surface of the first sidewall of the first single-crystalline semiconductor pillar. A second tunnel oxide layer, a second charge storage layer and a second blocking dielectric layer are sequentially stacked on the entire surface of the first sidewall of the second single-crystalline semiconductor pillar. A word line makes contact with surfaces of both the first and second blocking dielectric layers. The word line is used in common for the first and second single-crystalline semiconductor pillars.
摘要:
A method of fabricating a semiconductor device includes forming an insulation layer structure on a single-crystalline silicon substrate, forming a first insulation layer structure pattern comprising a first opening by etching a portion of the insulation layer structure, filling the first opening with a non-single-crystalline silicon layer, and forming a single-crystalline silicon pattern by irradiating a first laser beam onto the non-single-crystalline silicon layer. The method also includes forming a second insulation layer structure pattern comprising a second opening by etching a portion of the first insulation layer structure, filling the second opening with a non-single-crystalline silicon-germanium layer, and forming a single-crystalline silicon-germanium pattern by irradiating a second laser beam onto the non-single-crystalline silicon-germanium layer.
摘要:
Methods of forming integrated circuit devices include forming an electrically insulating layer having a semiconductor fin structure extending therethrough. This semiconductor fin structure may include at least one amorphous and/or polycrystalline semiconductor region therein. The at least one amorphous and/or polycrystalline semiconductor region within the semiconductor fin structure is then converted into a single crystalline semiconductor region. This semiconductor fin structure is then used as an active region of a semiconductor device.
摘要:
Semiconductor devices are provided including gate patterns on a substrate and isolation regions on the substrate. Insulating patterns are provided in the substrate below the gate patterns. Source/drain regions are provided in the substrate. Related methods of fabricating semiconductor devices are also provided.