摘要:
A single transistor floating-body dynamic random access memory (DRAM) device includes a floating body located on a semiconductor substrate and a gate electrode located on the floating body, the floating body including an excess carrier storage region. The DRAM device further includes source and drain regions respectively located at both sides of the gate electrode, and leakage shielding patterns located between the floating body and the source and drain regions. Each of the source and drain regions contact the floating body, which may be positioned between the source and drain regions. The floating body may also laterally extend under the leakage shielding patterns, which may be arranged at outer sides of the gate electrode.
摘要:
Disclosed is a semiconductor device and method of fabricating the same. The device is disposed on a substrate, including a fin constructed with first and second sidewalls, a first gate line formed in the pattern of spacer on the first sidewall of the fin, and a second gate line formed in the pattern of spacer on the second sidewall of the fin. First and second impurity regions are disposed in the fin. The first and second impurity regions are isolated from each other and define a channel region in the fin between the first and second gate lines.
摘要:
Disclosed is a semiconductor device and method of fabricating the same. The device is disposed on a substrate, including a fin constructed with first and second sidewalls, a first gate line formed in the pattern of spacer on the first sidewall of the fin, and a second gate line formed in the pattern of spacer on the second sidewall of the fin. First and second impurity regions are disposed in the fin. The first and second impurity regions are isolated from each other and define a channel region in the fin between the first and second gate lines.
摘要:
Disclosed is a semiconductor device and method of fabricating the same. The device is disposed on a substrate, including a fin constructed with first and second sidewalls, a first gate line formed in the pattern of spacer on the first sidewall of the fin, and a second gate line formed in the pattern of spacer on the second sidewall of the fin. First and second impurity regions are disposed in the fin. The first and second impurity regions are isolated from each other and define a channel region in the fin between the first and second gate lines.
摘要:
A single transistor floating-body dynamic random access memory (DRAM) device includes a floating body located on a semiconductor substrate and a gate electrode located on the floating body, the floating body including an excess carrier storage region. The DRAM device further includes source and drain regions respectively located at both sides of the gate electrode, and leakage shielding patterns located between the floating body and the source and drain regions. Each of the source and drain regions contact the floating body, which may be positioned between the source and drain regions. The floating body may also laterally extend under the leakage shielding patterns, which may be arranged at outer sides of the gate electrode.
摘要:
Disclosed is a semiconductor device and method of fabricating the same. The device is disposed on a substrate, including a fin constructed with first and second sidewalls, a first gate line formed in the pattern of spacer on the first sidewall of the fin, and a second gate line formed in the pattern of spacer on the second sidewall of the fin. First and second impurity regions are disposed in the fin. The first and second impurity regions are isolated from each other and define a channel region in the fin between the first and second gate lines.
摘要:
A method of forming a fin field effect transistor on a semiconductor substrate includes forming a fin-shaped active region vertically protruding from the substrate. An oxide layer is formed on a top surface and opposing sidewalls of the fin-shaped active region. An oxidation barrier layer is formed on the opposing sidewalls of the fin-shaped active region and is planarized to a height no greater than about a height of the oxide layer to form a fin structure. The fin structure is oxidized to form a capping oxide layer on the top surface of the fin-shaped active region and to form at least one curved sidewall portion proximate the top surface of the fin-shaped active region. The oxidation barrier layer has a height sufficient to reduce oxidation on the sidewalls of the fin-shaped active region about halfway between the top surface and a base of the fin-shaped active region. Related devices are also discussed.
摘要:
An SOI substrate is fabricated by providing a substrate having a sacrificial layer thereon, an active semiconductor layer on the sacrificial layer remote from the substrate and a supporting layer that extends along at least two sides of the active semiconductor layer and the sacrificial layer and onto the substrate, and that exposes at least one side of the sacrificial layer. At least some of the sacrificial layer is etched through the at least one side thereof that is exposed by the supporting layer to form a void space between the substrate and the active semiconductor layer, such that the active semiconductor layer is supported in spaced-apart relation from the substrate by the supporting layer. The void space may be at least partially filled with an insulator lining.
摘要:
An elongate stacked semiconductor structure is formed on a substrate. The stacked semiconductor structure includes a second semiconductor material region disposed on a first semiconductor material region. The first semiconductor material region is selectively doped to produce spaced-apart impurity-doped first semiconductor material regions and a lower dopant concentration first semiconductor material region therebetween. Etching exposes a portion of the second semiconductor material region between the impurity-doped first semiconductor material regions. The etching removes at least a portion of the lower dopant concentration first semiconductor material region to form a hollow between the substrate and the portion of the second semiconductor material region between the impurity-doped first semiconductor material regions. An insulation layer that surrounds the exposed portion of the second semiconductor material region between the impurity-doped first semiconductor material regions is formed. The hollow may be filled with a gate electrode that completely surrounds the exposed portion of the second semiconductor material region, or the gate electrode may partially surround the exposed portion of the second semiconductor material region and an insulation region may be formed in the hollow.
摘要:
An SOI substrate is fabricated by providing a substrate having a sacrificial layer thereon, an active semiconductor layer on the sacrificial layer remote from the substrate and a supporting layer that extends along at least two sides of the active semiconductor layer and the sacrificial layer and onto the substrate, and that exposes at least one side of the sacrificial layer. At least some of the sacrificial layer is etched through the at least one side thereof that is exposed by the supporting layer to form a void space between the substrate and the active semiconductor layer, such that the active semiconductor layer is supported in spaced-apart relation from the substrate by the supporting layer. The void space may be at least partially filled with an insulator lining.