Patent classifications
H10D64/62
SILICIDATION OF BOTTOM SOURCE/DRAIN SHEET USING PINCH-OFF SACRIFICIAL SPACER PROCESS
A vertical fin field-effect-transistor and a method for fabricating the same. The vertical fin field-effect-transistor includes at least a substrate, a first source/drain layer, and a plurality of fins each disposed on and in contact with the first source/drain layer. Silicide regions are disposed within a portion of the first source/drain layer. A gate structure is in contact with the plurality of fins, and a second source/drain layer is disposed on the gate structure. The method includes forming silicide in a portion of a first source/drain layer. A first spacer layer is formed in contact with at least the silicide, the first source/drain layer and the plurality of fins. A gate structure is formed in contact with the plurality of fins and the first spacer layer. A second spacer layer is formed in contact with the gate structure and the plurality of fins.
Source/drain contacts for non-planar transistors
The present description relates to the field of fabricating microelectronic devices having non-planar transistors. Embodiments of the present description relate to the formation of source/drain contacts within non-planar transistors, wherein a titanium-containing contact interface may be used in the formation of the source/drain contact with a discreet titanium silicide formed between the titanium-containing interface and a silicon-containing source/drain structure.
Hybrid source and drain contact formation using metal liner and metal insulator semiconductor contacts
An electrical device including a first semiconductor device having a silicon and germanium containing source and drain region, and a second semiconductor device having a silicon containing source and drain region. A first device contact to at least one of said silicon and germanium containing source and drain region of the first semiconductor device including a metal liner of an aluminum titanium and silicon alloy and a first tungsten fill. A second device contact is in contact with at least one of the silicon containing source and drain region of the second semiconductor device including a material stack of a titanium oxide layer and a titanium layer. The second device contact may further include a second tungsten fill.
III-V MOSFET with self-aligned diffusion barrier
A method is presented for forming a diffusion barrier in a field effect transistor with a source. A raised source is formed at least partially on the source with the raised source comprising III-V material. An interfacial layer is formed at least partially on the raised source with the interfacial layer comprising silicon or germanium. A metal layer is formed at least partially on the interfacial layer with the metal layer comprising transition metal. The diffusion barrier is formed at least partially on the raised source with the diffusion barrier layer comprising transition metal from the metal layer bonded to silicon or germanium from the interfacial layer. Similar processing forms a corresponding diffusion barrier on a raised drain.
Method of forming a gate contact structure for a semiconductor device
One illustrative method disclosed includes, among other things, forming a gate contact opening in a layer of insulating material, performing at least one etching process through the gate contact opening to remove a gate cap layer and to expose the gate structure, selectively growing a metal material that is conductively coupled to an upper surface of the gate structure such that the grown metal material contacts all of the sidewalls of the gate contact opening and an air space is formed between a bottom of the grown metal material and a conductive source/drain structure, and forming one or more conductive materials in the gate contact opening above the grown metal material.
FERMI-LEVEL UNPINNING STRUCTURES FOR SEMICONDUCTIVE DEVICES, PROCESSES OF FORMING SAME, AND SYSTEMS CONTAINING SAME
An interlayer is used to reduce Fermi-level pinning phenomena in a semiconductive device with a semiconductive substrate. The interlayer may be a rare-earth oxide. The interlayer may be an ionic semiconductor. A metallic barrier film may be disposed between the interlayer and a metallic coupling. The interlayer may be a thermal-process combination of the metallic barrier film and the semiconductive substrate. A process of forming the interlayer may include grading the interlayer. A computing system includes the interlayer.
Method of forming a junction field effect transistor
The disclosed technology relates to semiconductors, and more particularly to a junction field effect transistor (JFET). In one aspect, a method of fabricating a JFET includes forming a well of a first dopant type in a substrate, wherein the well is isolated from the substrate by an isolation region of a second dopant type. The method additionally includes implanting a dopant of the second dopant type at a surface of the well to form a source, a drain and a channel of the JFET, and implanting a dopant of the first dopant type at the surface of the well to form a gate of the JFET. The method additionally includes, prior to implanting the dopant of the first type and the dopant of the second type, forming a pre-metal dielectric (PMD) layer on the well and forming contact openings in the PMD layer above the source, the drain and the gate. The PMD layer has a thickness such that the channel is formed by implanting the dopant of the first type and the dopant of the second type through the PMD layer. The method further includes, after implanting the dopant of the first type and the dopant of the second type, siliciding the source, the drain and the gate, and forming metal contacts in the contact openings.
Array substrate and manufacturing method thereof, and display device
Embodiments of the present disclosure provide an array substrate and a manufacturing method thereof, and a display device. The array substrate includes a base substrate, a first electrode pattern, a second electrode pattern, and an active layer pattern disposed on the base substrate, a first electrode protection pattern coating the first electrode pattern, and a second electrode protection pattern coating the second electrode pattern. The active layer pattern is disposed between the first electrode pattern and the second electrode pattern. The first electrode protection pattern and the second electrode protection pattern are connected to two sides of the active layer pattern, respectively. The problem that, the active layer pattern cannot be connected to the first electrode pattern and the second electrode pattern due to the surface oxidation, when the first electrode pattern and the second electrode pattern adopt material with low resistance characteristic, is avoided, thus increasing the product yield.
Semiconductor device and method for fabricating the same
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having a first region and a second region; forming a gate layer on the substrate; forming a first gate dielectric layer on the gate layer; forming a first channel layer on the first region and a second channel layer on the second region; and forming a first source/drain on the first channel layer and a second source/drain on the second channel layer.
POSITIVE STRIKE SCR, NEGATIVE STRIKE SCR, AND A BIDIRECTIONAL ESD STRUCTURE THAT UTILIZES THE POSITIVE STRIKE SCR AND THE NEGATIVE STRIKE SCR
A first silicon controlled rectifier has a breakdown voltage in a first direction and a breakdown voltage in a second direction. A second silicon controlled rectifier has a breakdown voltage with a higher magnitude than the first silicon controlled rectifier in the first direction, and a breakdown voltage with a lower magnitude than the first silicon controlled rectifier in the second direction. A bidirectional electrostatic discharge (ESD) structure utilizes both the first silicon controlled rectifier and the second silicon controlled rectifier to provide bidirectional protection.