Patent classifications
H01L27/092
Semiconductor device and a method for fabricating the same
A semiconductor device includes: an isolation insulating layer; fin structures protruding from the isolation insulating layer; gate structures, each having a metal gate and a cap insulating layer disposed over the metal gate; a first source/drain epitaxial layer and a second source/drain epitaxial layer disposed between two adjacent gate structures; and a first conductive contact disposed on the first source/drain epitaxial layer, and a second conductive contact disposed on the second source/drain epitaxial layer; a separation isolation region disposed between the first and second conductive contact; and an insulating layer disposed between the separation isolation region and the isolation insulating layer. The separation isolation region is made of a different material than the insulating layer.
Multi-layer channel structures and methods of fabricating the same in field-effect transistors
A semiconductor structure includes a first stack of semiconductor layers disposed over a semiconductor substrate, where the first stack of semiconductor layers includes a first SiGe layer and a plurality of Si layers disposed over the first SiGe layer and the Si layers are substantially free of Ge, and a second stack of semiconductor layers disposed adjacent to the first stack of semiconductor layers, where the second stack of semiconductor layers includes the first SiGe layer and a plurality of second SiGe layers disposed over the first SiGe layer, and where the first SiGe layer and the second SiGe layers have different compositions. The semiconductor structure further includes a first metal gate stack interleaved with the first stack of semiconductor layers to form a first device and a second metal gate stack interleaved with the second stack of semiconductor layers to form a second device different from the first device.
Semiconductor device and method
In an embodiment, a device includes: a first nanostructure over a substrate, the first nanostructure including a channel region and a first lightly doped source/drain (LDD) region, the first LDD region adjacent the channel region; a first epitaxial source/drain region wrapped around four sides of the first LDD region; an interlayer dielectric (ILD) layer over the first epitaxial source/drain region; a source/drain contact extending through the ILD layer, the source/drain contact wrapped around four sides of the first epitaxial source/drain region; and a gate stack adjacent the source/drain contact and the first epitaxial source/drain region, the gate stack wrapped around four sides of the channel region.
Semiconductor device and method
In an embodiment, a device includes: a first nanostructure over a substrate, the first nanostructure including a channel region and a first lightly doped source/drain (LDD) region, the first LDD region adjacent the channel region; a first epitaxial source/drain region wrapped around four sides of the first LDD region; an interlayer dielectric (ILD) layer over the first epitaxial source/drain region; a source/drain contact extending through the ILD layer, the source/drain contact wrapped around four sides of the first epitaxial source/drain region; and a gate stack adjacent the source/drain contact and the first epitaxial source/drain region, the gate stack wrapped around four sides of the channel region.
Semiconductor device including a first fin active region, a second fin active region and a field region
A semiconductor device includes a substrate including a first active region, a second active region and a field region between the first and second active regions, and a gate structure formed on the substrate to cross the first active region, the second active region and the field region. The gate structure includes a p type metal gate electrode and an n-type metal gate electrode directly contacting each other, the p-type metal gate electrode extends from the first active region less than half way toward the second active region.
Semiconductor device including a first fin active region, a second fin active region and a field region
A semiconductor device includes a substrate including a first active region, a second active region and a field region between the first and second active regions, and a gate structure formed on the substrate to cross the first active region, the second active region and the field region. The gate structure includes a p type metal gate electrode and an n-type metal gate electrode directly contacting each other, the p-type metal gate electrode extends from the first active region less than half way toward the second active region.
Integrated high efficiency gate on gate cooling
A microfabrication device is provided. The microfabrication device includes a combined substrate including a first substrate connected to a second substrate, the first substrate having first devices and the second substrate having second devices; fluidic passages formed at a connection point between the first substrate and the second substrate, the connection point including a wiring structure that electrically connects first devices to second devices and physically connects the first substrate to the second substrate; dielectric fluid added to the fluidic passages; and a circulating mechanism configured to circulate the dielectric fluid through the fluidic passages to transfer heat.
SRAM structures with improved write word line placement
Integrated circuit (“IC”) layouts are disclosed for improving performance of memory arrays, such as static random access memory (“SRAM”). An exemplary IC device includes an SRAM cell and an interconnect structure electrically coupled to the SRAM cell. The interconnect structure includes a first metal layer electrically coupled to the SRAM cell that includes a bit line, a first voltage line having a first voltage, a word line landing pad, and a second voltage line having a second voltage that is different than the first voltage. The first voltage line is adjacent the bit line. The word line landing pad is adjacent the first voltage line. The second voltage line is adjacent the word line landing pad. A second metal layer is disposed over the first metal layer. The second metal layer includes a word line that is electrically coupled to the word line landing pad.
Heterogeneous metal line compositions for advanced integrated circuit structure fabrication
Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a first plurality of conductive interconnect lines in and spaced apart by a first ILD layer, wherein individual ones of the first plurality of conductive interconnect lines comprise a first conductive barrier material along sidewalls and a bottom of a first conductive fill material. A second plurality of conductive interconnect lines is in and spaced apart by a second ILD layer above the first ILD layer, wherein individual ones of the second plurality of conductive interconnect lines comprise a second conductive barrier material along sidewalls and a bottom of a second conductive fill material, wherein the second conductive fill material is different in composition from the first conductive fill material.
Method of fabricating CMOS FinFETs by selectively etching a strained SiGe layer
Techniques and methods related to strained NMOS and PMOS devices without relaxed substrates, systems incorporating such semiconductor devices, and methods therefor may include a semiconductor device that may have both n-type and p-type semiconductor bodies. Both types of semiconductor bodies may be formed from an initially strained semiconductor material such as silicon germanium. A silicon cladding layer may then be provided at least over or on the n-type semiconductor body. In one example, a lower portion of the semiconductor bodies is formed by a Si extension of the wafer or substrate. By one approach, an upper portion of the semiconductor bodies, formed of the strained SiGe, may be formed by blanket depositing the strained SiGe layer on the Si wafer, and then etching through the SiGe layer and into the Si wafer to form the semiconductor bodies or fins with the lower and upper portions.