摘要:
A method of forming an integrated circuit includes selectively forming active channel regions for NMOS and PMOS transistors on a substrate parallel to a crystal orientation thereof and selectively forming source/drain regions of the NMOS transistors with Carbon (C) impurities therein.
摘要:
A method of forming an integrated circuit includes selectively forming active channel regions for NMOS and PMOS transistors on a substrate parallel to a crystal orientation thereof and selectively forming source/drain regions of the NMOS transistors with Carbon (C) impurities therein.
摘要:
Example embodiments relate to a method of manufacturing a semiconductor device. Other example embodiments relate to a method of manufacturing a metal-oxide-semiconductor (MOS) transistor having an epitaxial region disposed in a lower portion of sidewalls of a gate pattern. Provided is a method of manufacturing a MOS transistor having an epitaxial region which improves an epitaxial growth rate and which may have fewer defects. The method of manufacturing a MOS transistor having an epitaxial region may include forming a gate pattern on a semiconductor substrate, forming a first ion implantation region having a first damage profile by implanting first impurity ions into the semiconductor substrate using the gate pattern as an ion implantation mask, forming a second ion implantation region having a second damage profile adjacent to the first damage profile by implanting second impurity ions into the semiconductor substrate using the gate pattern as an ion implantation mask and partially etching a lower portion of sidewalls of the gate pattern and forming in-situ an epitaxial region on the etched semiconductor substrate.
摘要:
A semiconductor device with improved transistor operating and flicker noise characteristics includes a substrate, an analog NMOS transistor and a compressively-strained-channel analog PMOS transistor disposed on the substrate. The device also includes a first etch stop liner (ESL) and a second ESL which respectively cover the NMOS transistor and the PMOS transistor. The relative measurement of flicker noise power of the NMOS and PMOS transistors to flicker noise power of reference unstrained-channel analog NMOS and PMOS transistors at a frequency of 500 Hz is less than 1.
摘要:
A semiconductor device includes a gate insulator and a gate electrode stacked on a substrate, a source/drain pattern which fills a recess region formed at opposite sides adjacent to the gate electrode, the source/drain pattern being made of silicon-germanium doped with dopants and a metal germanosilicide layer disposed on the source/drain pattern. The metal germanosilicide layer is electrically connected to the source/drain pattern. Moreover, a proportion of germanium amount to the sum of the germanium amount and silicon amount in the metal germanosilicide layer is lower than that of germanium amount to the sum of the germanium amount and silicon amount in the source/drain pattern.
摘要:
In an example embodiment of the method of manufacturing an epitaxial semiconductor substrate, a gettering layer is grown over a semiconductor substrate. An epitaxial layer may then be formed over the gettering layer, and a semiconductor device may be formed on the epitaxial layer.
摘要:
A semiconductor device and method of manufacturing the semiconductor device are provided. The semiconductor device may include a semiconductor substrate, a gate insulation layer and a gate electrode, a first spacer, a second spacer, an epitaxial pattern, and/or source/drain regions. The gate insulation layer and the gate electrode may be formed on the semiconductor substrate. The first spacer may be formed on sidewalls of the gate electrode. The second spacer may be formed on sidewalls of the first spacer. The epitaxial pattern may be formed between the second spacer and the semiconductor substrate such that an outside profile of the epitaxial pattern is aligned with an outside profile of the second spacer. The source/drain regions may include primary source/drain regions that are aligned with the first spacer. The primary source/drain regions may be formed in the epitaxial pattern and the semiconductor substrate. The source/drain regions may also include secondary source/drain regions that are aligned with the second spacer and formed in the semiconductor substrate.
摘要:
A transistor includes a semiconductor substrate that has a first surface of a {100} crystal plane, a second surface of the {100} crystal plane having a height lower than that of the first surface, and a third surface of a {111} crystal plane connecting the first surface to the second surface. First heavily doped impurity regions are formed under the second surface. A gate structure is formed on the first surface. An epitaxial layer is formed on the second surface and the third surface. Second heavily doped impurity regions are formed at both sides of the gate structure. The second heavily doped impurity regions have side faces of the {111} crystal plane so that a short channel effect generated between the impurity regions may be prevented.
摘要:
A semiconductor device includes a substrate having a semiconductor channel region therein. A gate electrode is provided on the channel region. A SiGeC stress-inducing region is provided adjacent the channel region. The SiGeC region is configured to form a semiconductor junction with the channel region and induce a net mobility-enhancing stress in a portion of the channel region. The SiGeC region may have a Ge/C atomic ratio of less than about 12. The SiGeC region also has a sufficient concentration of substitutional C atoms therein to induce a net tensile stress in the portion of the channel region, which has a different lattice constant relative to the SiGeC region.
摘要:
Low defect epitaxial semiconductor substrates having a gettering function and methods of fabricating such substrates are described. A substrate in accordance with this invention includes a semiconductor substrate, a non-carrier characteristic dopant layer formed in the semiconductor substrate, a carrier characteristic dopant layer including the non-carrier characteristic dopant layer therein, and an epi-layer formed on a surface of the semiconductor substrate.