摘要:
A group III-N nanowire is disposed on a substrate. A longitudinal length of the nanowire is defined into a channel region of a first group III-N material, a source region electrically coupled with a first end of the channel region, and a drain region electrically coupled with a second end of the channel region. A second group III-N material on the first group III-N material serves as a charge inducing layer, and/or barrier layer on surfaces of nanowire. A gate insulator and/or gate conductor coaxially wraps completely around the nanowire within the channel region. Drain and source contacts may similarly coaxially wrap completely around the drain and source regions.
摘要:
A transistor having a narrow bandgap semiconductor source/drain region is described. The transistor includes a gate electrode formed on a gate dielectric layer formed on a silicon layer. A pair of source/drain regions are formed on opposite sides of the gate electrode wherein said pair of source/drain regions comprise a narrow bandgap semiconductor film formed in the silicon layer on opposite sides of the gate electrode.
摘要:
A group III-N nanowire is disposed on a substrate. A longitudinal length of the nanowire is defined into a channel region of a first group III-N material, a source region electrically coupled with a first end of the channel region, and a drain region electrically coupled with a second end of the channel region. A second group III-N material on the first group III-N material serves as a charge inducing layer, and/or barrier layer on surfaces of nanowire. A gate insulator and/or gate conductor coaxially wraps completely around the nanowire within the channel region. Drain and source contacts may similarly coaxially wrap completely around the drain and source regions.
摘要:
A transistor having a narrow bandgap semiconductor source/drain region is described. The transistor includes a gate electrode formed on a gate dielectric layer formed on a silicon layer. A pair of source/drain regions are formed on opposite sides of the gate electrode wherein said pair of source/drain regions comprise a narrow bandgap semiconductor film formed in the silicon layer on opposite sides of the gate electrode.
摘要:
Embodiments of the invention provide a device with a reverse-tapered gate electrode and a gate dielectric layer with a length close to that of the gate length. In an embodiment, this may be done by altering portions of a blanket dielectric layer with one or more angled ion implants, then removing the altered portions of the blanket dielectric layer.
摘要:
A Group III-V Semiconductor device and method of fabrication is described. A high-k dielectric is interfaced to a confinement region by a chalcogenide region.
摘要:
An atomic layer deposition process that reduces defective bonds formed when depositing atomic layers on a substrate or atomic layer when forming an integrated circuit device. As the layers are formed, a substrate or previous layer is exposed to a first reactant. After the substrate or layer has reacted with the first reactant, the substrate or layer is exposed to a second reactant. During or after exposure to the second reactant, electromagnetic radiation is applied to the substrate or layer. The electromagnetic radiation excites any defective bonds that may form in the deposition process to an energy level high enough to cause the elements forming the defective bonds to react with other elements contained in the second reactant. The reaction forms desirable bonds which attach to the substrate or previous layer to form an additional new layer.
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.
摘要:
A method for making a semiconductor device is described. That method comprises forming a high-k gate dielectric layer that contacts a metal oxide layer. The metal oxide layer is generated by forming a metal layer, then oxidizing the metal layer.
摘要:
A method for making a semiconductor device is described. That method comprises adding nitrogen to a silicon dioxide layer to form a nitrided silicon dioxide layer on a substrate. After forming a sacrificial layer on the nitrided silicon dioxide layer, the sacrificial layer is removed to generate a trench. A high-k gate dielectric layer is formed on the nitrided silicon dioxide layer within the trench, and a metal gate electrode is formed on the high-k gate dielectric layer.