摘要:
Semiconductor devices having metallic source and drain regions are described. For example, a semiconductor device includes a gate electrode stack disposed above a semiconducting channel region of a substrate. Metallic source and drain regions are disposed above the substrate, on either side of the semiconducting channel region. Each of the metallic source and drain regions has a profile. A first semiconducting out-diffusion region is disposed in the substrate, between the semiconducting channel region and the metallic source region, and conformal with the profile of the metallic source region. A second semiconducting out-diffusion region is disposed in the substrate, between the semiconducting channel region and the metallic drain region, and conformal with the profile of the metallic drain region.
摘要:
Semiconductor devices having metallic source and drain regions are described. For example, a semiconductor device includes a gate electrode stack disposed above a semiconducting channel region of a substrate. Metallic source and drain regions are disposed above the substrate, on either side of the semiconducting channel region. Each of the metallic source and drain regions has a profile. A first semiconducting out-diffusion region is disposed in the substrate, between the semiconducting channel region and the metallic source region, and conformal with the profile of the metallic source region. A second semiconducting out-diffusion region is disposed in the substrate, between the semiconducting channel region and the metallic drain region, and conformal with the profile of the metallic drain region.
摘要:
Known techniques to improve metal-oxide-semiconductor field effect transistor (MOSFET) performance is to add a high stress dielectric layer to the MOSFET. The high stress dielectric layer introduces stress in the MOSFET that causes electron mobility drive current to increase. This technique increases process complexity, however, and can degrade PMOS performance. Embodiments of the present invention create dislocation loops in the MOSFET substrate to introduce stress and implants nitrogen in the substrate to control the growth of the dislocation loops so that the stress remains beneath the channel of the MOSFET.
摘要:
A method and apparatus to form a high-concentration, indium-fluorine retrograde well within a substrate. The indium-fluorine retrograde well includes an indium concentration greater than about 3E18/cm3.
摘要:
A semiconductor device comprises a fin and a metal gate film. The fin is formed on a surface of a semiconductor material. The metal gate film formed on the fin and comprises ions implanted in the metal gate film to form a compressive stress within the metal gate. In one exemplary embodiment, the surface of the semiconductor material comprises a (100) crystalline lattice orientation, and an orientation of the fin is along a direction with respect to the crystalline lattice of the semiconductor. In another exemplary embodiment, the surface of the semiconductor material comprises a (100) crystalline lattice orientation, and the orientation of the fin is along a direction with respect to the crystalline lattice of the semiconductor. The fin comprises an out-of-plane compression that is generated by the compressive stress within the metal gate film.
摘要:
A method for selectively relieving channel stress for n-channel transistors with recessed, epitaxial SiGe source and drain regions is described. This increases the electron mobility for the n-channel transistors without affecting the strain in p-channel transistors. The SiGe provides lower resistance when a silicide is formed.
摘要:
A method for selectively relieving channel stress for n-channel transistors with recessed, epitaxial SiGe source and drain regions is described. This increases the electron mobility for the n-channel transistors without affecting the strain in p-channel transistors. The SiGe provides lower resistance when a silicide is formed.
摘要:
Carbon may be implanted into a p-type silicon channel to form a carbon region in an n-type metal oxide semiconductor (NMOS) transistor. After an annealing process, the implanted carbon may diffuse from the channel into an interface of a gate dielectric layer and the channel. The diffusion may cause an increase in fixed charge at the silicon surface. Thus, the threshold voltage of the NMOS transistor may be reduced.
摘要:
A method and apparatus to form a high-concentration, indium-fluorine retrograde well within a substrate. The indium-fluorine retrograde well includes an indium concentration greater than about 3E18/cm3.
摘要:
Nanowire structures having wrap-around contacts are described. For example, a nanowire semiconductor device includes a nanowire disposed above a substrate. A channel region is disposed in the nanowire. The channel region has a length and a perimeter orthogonal to the length. A gate electrode stack surrounds the entire perimeter of the channel region. A pair of source and drain regions is disposed in the nanowire, on either side of the channel region. Each of the source and drain regions has a perimeter orthogonal to the length of the channel region. A first contact completely surrounds the perimeter of the source region. A second contact completely surrounds the perimeter of the drain region.