Patent classifications
H01L21/28105
Vertical transport fin field effect transistor with asymmetric channel profile
A method of forming a plurality of vertical fin field effect transistors is provided. The method includes forming a first vertical fin on a first region of a substrate and a second vertical fin on a second region of the substrate, forming an isolation region between the first region and the second region, forming a gate dielectric layer on the vertical fins, forming a first work function layer on the gate dielectric layer, removing an upper portion of the first work function layer from the vertical fin on the first region and the vertical fin on the second region, and forming a second work function layer on the first work function layer and the exposed upper portion of the gate dielectric layer, wherein the first work function layer and second work function layer forms a first combined work function layer with a step in the second work function layer.
MOFSET and method of fabricating same
A metal-oxide-semiconductor field-effect transistor (MOSFET) and a method for fabricating the MOSFET are disclosed. In the method, after a gate is formed by etching a deposited undoped or lightly-doped polysilicon layer, with the portions of the gate above channel edge between a channel region and STI region being protected, ions are doped into the remaining gate portion during source/drain implantation. As a result, each of the gate portions above channel edge is constructed of a doped second polysilicon layer stacked with undoped (or lightly-doped) first polysilicon layers, while the remaining gate portion is simply constituted by the doped second polysilicon layer. This can increase a threshold voltage of the MOSFET at channel edge. Optionally, before the gate is formed by etching the polysilicon, the portions of the polysilicon above the channel edge may be protected, followed by doping ions into the remaining portions of the polysilicon.
APPARATUS COMPRISING WORDLINES COMPRISING MULTIPLE METAL MATERIALS, AND RELATED METHODS AND ELECTRONIC SYSTEMS
An apparatus comprising a wordline in a material, the wordline comprising a first metal portion, a second metal portion vertically adjacent to the first metal portion, and a third metal portion vertically adjacent to the second metal portion. A dielectric material is between the wordline and the material. Additional apparatus are disclosed, as are related methods of forming an apparatus and electronic systems.
Cover member for a robot used in a painting process having absorptive properties
A cover member for a robot used in a painting process includes an inner knitted substructure, an outer knitted substructure and a spacer yarn positioned between and secured to the inner and outer knitted substructures. The cover member has stretchability, compressibility and resiliency similar to conventional resilient foam materials while at the same time providing characteristics for absorbing paint to substantially reduce paint dripping.
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME
The present disclosure teaches semiconductor devices and methods for manufacturing the same. Implementations of the semiconductor device may include: a semiconductor substrate; a semiconductor fin positioned on the semiconductor substrate; and a gate structure positioned on the semiconductor fin, where the gate structure includes a gate dielectric layer on a part of a surface of the semiconductor fin and a gate on the gate dielectric layer; where the gate includes a metal gate layer on the gate dielectric layer and a semiconductor layer on a side surface of at least one side of the metal gate layer; and where the semiconductor layer includes a dopant, where a conductivity type of the dopant is the opposite of a conductivity type of the semiconductor fin. The present disclosure can improve a work function of the device, thereby improving a current characteristic of the device during a working process, reducing the short channel effect (SCE), and lowering a leakage current.
Cryogenic semiconductor device having buried channel array transistor
A cryogenic semiconductor device includes isolation regions defining an active region having a first P-type ion concentration in a substrate, a gate structure in the substrate, and an ion implantation region having a second P-type ion concentration in the active region below the gate structure, wherein the gate structure includes a gate dielectric layer conformally disposed on inner sidewalls of a gate trench, a lower gate electrode disposed on the gate dielectric layer, and an upper gate electrode disposed on the lower gate electrode, wherein the lower gate electrode has a relatively lower work function than the upper gate electrode.
Method of fabricating MOSFET
A method for fabricating MOSFET is disclosed. In the method, after a gate is formed by etching a deposited undoped or lightly-doped polysilicon layer, with the portions of the gate above channel edge between a channel region and STI region being protected, ions are doped into the remaining gate portion during source/drain implantation. As a result, each of the gate portions above channel edge is constructed of a doped second polysilicon layer stacked with undoped (or lightly-doped) first polysilicon layers, while the remaining gate portion is simply constituted by the doped second polysilicon layer. This can increase a threshold voltage of the MOSFET at channel edge. Optionally, before the gate is formed by etching the polysilicon, the portions of the polysilicon above the channel edge may be protected, followed by doping ions into the remaining portions of the polysilicon.
Semiconductor device and method of fabricating the same
A semicondcutor device, and a method of fabricating the semiconductor device including forming on a substrate a device isolation layer defining a plurality of active regions; and forming a plurality of gate lines intersecting the active regions and buried in the substrate. The forming of the gate lines includes forming on the substrate a trench that intersects the active regions; forming a work-function control layer on a sidewall and a bottom surface of the trench; forming a conductive layer on the work-function control layer; sequentially forming a barrier layer and a source layer on the work-function control layer and the conductive layer, the source layer including a work-function control element; and diffusing the work-function control element from the source layer into an upper portion of the work-function control layer.
Gate cut critical dimension shrink and active gate defect healing using selective deposition
Embodiments of the present invention are directed to techniques for providing a gate cut critical dimension (CD) shrink and active gate defect healing using selective deposition. The selective silicon on silicon deposition described herein effectively shrinks the gate cut CD to below lithographic limits and repairs any neighboring active gate damage resulting from a processing window misalignment by refilling the inadvertently removed sacrificial material. In a non-limiting embodiment of the invention, a sacrificial gate is formed over a shallow trench isolation region. A portion of the sacrificial gate is removed to expose a surface of the shallow trench isolation region. A semiconductor material is selectively deposited on exposed sidewalls of the sacrificial gate. A gate cut dielectric is formed on a portion of the shallow trench isolation between sidewalls of the semiconductor material.
GATE NOBLE METAL NANOPARTICLES
An example apparatus includes a first source/drain region and a second source/drain region formed in a substrate. The first source/drain region and the second source/drain region are separated by a channel. The apparatus includes a gate opposing the channel. The gate includes noble metal nanoparticles. A sense line is coupled to the first source/drain region and a storage node is coupled to the second source/drain region.