Abstract:
Field-effect transistor (FET) circuits employing topside and backside contacts for topside and backside routing of FET power and logic signals. A FET circuit is provided that includes a FET that includes a conduction channel, a source, a drain, and a gate. The FET circuit also includes a topside metal contact electrically coupled with at least one of the source, drain, and gate of the FET. The FET circuit also includes a backside metal contact electrically coupled with at least one of the source, drain, and gate of the FET. The FET circuit also includes topside and backside metal lines electrically coupled to the respective topside and backside metal contacts to provide power and signal routing to the FET. A complementary metal oxide semiconductor (CMOS) circuit is also provided that includes a PFET and NFET that each includes a topside and backside contact for power and signal routing.
Abstract:
Certain aspects of the present disclosure generally relate to integration of a hybrid conductor material in power rails of a semiconductor device. An example semiconductor device generally includes an active electrical device and a power rail. The power rail is electrically coupled to the active electrical device, disposed above the active electrical device, and embedded in at least one dielectric layer. The power rail comprises a first conductive layer, a barrier layer, and a second conductive layer comprising copper. The barrier layer is disposed between the first conductive layer and the second conductive layer.
Abstract:
Multigate devices and fabrication methods that mitigate the layout effects are described. In conventional processes to fabricate multigate semiconductor devices such as FinFET devices, long isolation cut masks may be used. This can lead to undesirable layout effects. To mitigate or eliminate the layout effect, fabrication methods are proposed in which the interlayer dielectric (ILD) layer remains intact at the gate cut location during the fabrication process.
Abstract:
Aspects of the disclosure are directed to an integrated circuit. The integrated circuit may include a metal contact comprising a first hybrid interconnect structure disposed within a metallization layer, and a metal comprising a second hybrid interconnect structure disposed within the metallization layer, wherein each of the first and the second hybrid interconnect structures has a top portion and a bottom portion, and wherein the top portion of each of the first and the second hybrid interconnect structures comprises a metal element that is suitable for chemical mechanical planarization (CMP) and the bottom portion of each of the first and the second hybrid interconnect structures comprises ruthenium (Ru). The metal element may comprise cobalt (Co).
Abstract:
A MOS device includes a first interconnect extending in a first direction, the first interconnect being configured in a metal layer. The MOS device further includes a second interconnect extending in the first direction parallel to the first interconnect, the second interconnect being configured in the metal layer. The MOS device further includes a gate interconnect extending in a second direction orthogonal to the first direction, the gate interconnect being situated in a first layer below the metal layer, wherein the gate interconnect is coupled to the first interconnect by a first via. The MOS device further includes a third interconnect extending in the second direction, the third interconnect being coupled to both the first and second interconnects, wherein the third interconnect is coupled to the first interconnect by a second via, and wherein the second via contacts the first via.
Abstract:
Semiconductor interconnects and methods for making semiconductor interconnects. An interconnect may include a first via of a first conductive material between a first conductive interconnect layer and a first middle of line (MOL) interconnect layer. The first MOL interconnect layer is on a first level. The first via is fabricated with a single damascene process. Such a semiconductor interconnect also includes a second via of a second conductive material between the first conductive interconnect layer and a second MOL interconnect layer. The second MOL interconnect layer is on a second level. The second via is fabricated with a dual damascene process. The first conductive material is different than the second conductive material.
Abstract:
A device comprising a substrate and a first transistor formed over the substrate. The first transistor includes a first source disposed over the substrate, a first drain disposed over the substrate, a first plurality of channels coupled to the first source and the first drain, and a first gate surrounding the first plurality of channels. The first plurality of channels is located between the first source and the first drain. At least one channel includes silicon germanium (SiGe). The transistor is a field effect transistor (FET). The transistor is a gate all around (GAA) FET. The transistor may be configured to operate as a negative channel metal oxide semiconductor (NMOS) transistor. The transistor may be configured to operate as a positive channel metal oxide semiconductor (PMOS) transistor.
Abstract:
A standard cell CMOS device includes metal oxide semiconductor transistors having gates formed from gate interconnects. The gate interconnects extend in a first direction. The device further includes M1 layer interconnects. The M1 layer interconnects are parallel to the gate interconnects and extend in the first direction only. The device further includes a M0 layer interconnect. The M0 layer interconnect extends directly over a first gate interconnect and extends in a second direction orthogonal to the first direction only. The M0 layer interconnect is below the M1 layer and is isolated from directly connecting to the first gate interconnect. The device further includes a layer interconnect that is different from the M1 layer interconnects and the M0 layer interconnect. The layer interconnect is connected to the M0 layer interconnect and is directly connected to a second gate electrode.
Abstract:
A method of producing a FinFET device with fin pitch of less than 20 nm is presented. In accordance with some embodiments, fins are deposited on sidewall spacers, which themselves are deposited on mandrels. The mandrels can be formed by lithographic processes while the fins and sidewall spacers formed by deposition technologies.
Abstract:
A method for half-node scaling a circuit layout in accordance with an aspect of the present disclosure includes vertical devices on a die. The method includes reducing a fin pitch and a gate pitch of the vertical devices on the die. The method also includes scaling a wavelength to define at least one reduced area geometric pattern of the circuit layout.