摘要:
A field-effect transistor for a narrow-body, multiple-gate transistor such as a FinFET, tri-gate or Ω-FET is described. The corners of the channel region disposed beneath the gate are rounded n, for instance, oxidation steps, to reduce the comer effect associated with conduction initiating in the corners of the channel region.
摘要:
A method utilizing a common gate electrode material with a single work function for both the pMOS and nMOS transistors where the magnitude of the transistor threshold voltages is modified by semiconductor band engineering and article made thereby.
摘要:
A method of fabricating a MOS transistor having a thinned channel region is described. The channel region is etched following removal of a dummy gate. The source and drain regions have relatively low resistance with the process.
摘要:
A semiconductor device is described. That semiconductor device comprises a high-k gate dielectric layer that is formed over a channel that is positioned within a substrate, and a metal gate electrode that is formed on the high-k gate dielectric layer. The high-k gate dielectric layer has off-state leakage characteristics that are superior to those of a silicon dioxide based gate dielectric, and on-state mobility characteristics that are superior to those of a high-k gate dielectric that comprises an isotropic material.
摘要:
A method for making a semiconductor device is described. That method comprises forming on a substrate a dielectric layer and a sacrificial structure that comprises a first layer and a second layer, such that the second layer is formed on the first layer and is wider than the first layer. After the sacrificial structure is removed to generate a trench, a metal gate electrode is formed within the trench.
摘要:
Embodiments of the invention provide a device with a multiple gates. Stress material within recesses of a device body metal gate may cause a stress in channel regions of the device, thereby improving performance of the device.
摘要:
A structure to form an energy well within a Carbon nanotube is described. The structure includes a doped semiconductor region and an undoped semiconductor region. The Carbon nanotube is between the doped semiconductor region and the undoped semiconductor region. The structure also includes a delta doped semiconductor region. The undoped semiconductor region is between the Carbon nanotube and the delta doped region. The delta doped semiconductor region is doped opposite that of the doped semiconductor region.
摘要:
Described herein are a device utilizing a gate electrode material with a single work function for both the pMOS and nMOS transistors where the magnitude of the transistor threshold voltages is modified by semiconductor band engineering and article made thereby. Further described herein are methods of fabricating a device formed of complementary (pMOS and nMOS) transistors having semiconductor channel regions which have been band gap engineered to achieve a low threshold voltage.
摘要:
A contact architecture for nanoscale channel devices having contact structures coupling to and extending between source or drain regions of a device having a plurality of parallel semiconductor bodies. The contact structures being able to contact parallel semiconductor bodies having sub-lithographic pitch.
摘要:
Strained channel field effect transistors may have a threshold voltage shift. This threshold voltage shift may be compensated for by adjusting channel doping. But this also adversely affects mobility. The threshold voltage shift may be compensated, without adversely affecting mobility, by tailoring the workfunction of a metal gate electrode used in the transistor to adequately compensate for that threshold voltage shift. For example, in some embodiments, an appropriate metal may be selected with a slightly higher workfunction or, in other cases, the workfunction of a selected metal may be adjusted by, for example, doping the metal gate electrode with a material which increases the workfunction of the gate electrode.