Abstract:
A method for scaling voltages provided to different modules of a system-on-chip (SOC) includes receiving, at an energy-performance engine of the SOC, a first indication of usage history for a first module of the SOC and a second indication of usage history for a second module of the SOC. The method includes receiving a battery life indication that indicates a remaining battery life for a battery of the SOC. The method also includes adjusting a first supply voltage provided to the first module of the SOC based on the first indication, the second indication, and the battery life indication. The method further includes adjusting a second supply voltage provided to the second module of the SOC based on the first indication, the second indication, and the battery life indication.
Abstract:
A complementary fin field-effect transistor (FinFET) includes a p-type device having a p-channel fin. The p-channel fin may include a first material that is lattice mismatched relative to a semiconductor substrate. The first material may have a compressive strain. The FinFET device also includes an n-type device having an re-channel fin. The n-channel fin may include a second material having a tensile strain that is lattice mismatched relative to the semiconductor substrate. The p-type device and the n-type device cooperate to form the complementary FinFET device.
Abstract:
A method includes forming a first metal layer on source/drain regions of an n-type metal-oxide-semiconductor (NMOS) device and on source/drain regions of a p-type MOS (PMOS) device by chemical vapor deposition (CVD) or non-energetic physical vapor deposition (PVD). The method further includes selectively performing a rapid thermal anneal (RTA) process on the first metal layer after forming the first metal layer.
Abstract:
A method includes forming an electronic device structure including a substrate, an oxide layer, and a first low-k layer. The method also includes forming openings by patterning the oxide layer, filling the openings with a conductive material to form conductive structures within the openings, and removing the oxide layer using the first low-k layer as an etch stop layer. The conductive structures contact the first low-k layer. Removing the oxide layer includes performing a chemical vapor etch process with respect to the oxide layer to form an etch byproduct and removing the etch byproduct. The method includes forming a second low-k layer using a deposition process that causes the second low-k layer to define one or more cavities. Each cavity is defined between a first conductive structure and an adjacent conductive structure, the first and second conductive structures have a spacing therebetween that is smaller than a threshold distance.
Abstract:
Gate-all-around (GAA) transistors with shallow source/drain regions and methods of fabricating the same provide a GAA transistor that includes one or more channels positioned between a source region and a drain region. The one or more channels, which may be nanowire, nanosheet, or nanoslab semiconductors, are surrounded along a longitudinal axis by gate material. At a first end of the channel is a source region and at an opposite end of the channel is a drain region. To reduce parasitic capacitance between a bottom gate and the source and drain regions, a filler material is provided adjacent the bottom gate, and the source and drain regions are grown on top of the filler material. In this fashion, the bottom gate does not abut the source region or the drain region, reducing geometries which would contribute to parasitic capacitance.
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 includes a first conductive layer, a barrier layer, and a second conductive layer. In certain cases, copper may be used as conductive material for the second conductive layer. The barrier layer is disposed between the first conductive layer and the second conductive layer.
Abstract:
Cell circuits having a diffusion break with avoided or reduced adjacent semiconductor channel strain relaxation and related methods are disclosed. In one aspect, a cell circuit includes a substrate of semiconductor material and a semiconductor channel structure(s) of a second semiconductor material disposed on the substrate. The semiconductor material applies a stress to the formed semiconductor channel structure(s) to induce a strain in the semiconductor channel structure(s) for increasing carrier mobility. A diffusion break comprising a dielectric material extends through a surrounding structure of an interlayer dielectric, and the semiconductor channel structure(s) and at least a portion of the substrate. The relaxation of strain in areas of the semiconductor channel structure(s) adjacent to the diffusion break is reduced or avoided, because the semiconductor channel structure(s) is constrained by the surrounding structure.
Abstract:
Integrated circuits (ICs) made using extreme ultraviolet (EUV) patterning and methods for fabricating such ICs are disclosed. In an exemplary aspect, fabricating such ICs includes using a double-exposure EUV process when making metal trenches for the ICs. In particular, after a first EUV exposure and etching process, spacers are used before a second EUV exposure to guarantee minimum spacing between the metal trenches.
Abstract:
Integrated circuits employing a field gate(s) without dielectric layers and/or work function metal layers for reduced gate layout parasitic resistance, and related methods are disclosed. At least a portion of the dielectric layers and/or work function metal layers present in active gate(s) is not present in a field gate(s) of a gate in a circuit cell. The field gate(s) have more conductive gate material than the active gate(s). In this manner, the increased volume of gate material in the field gate(s) reduces gate layout parasitic resistance. The active gate(s) retains the dielectric layers and/or work function metal layers to effectively isolate the gate material from a channel of a FET formed from the circuit cell to provide effective channel control. Reducing gate layout parasitic resistance can reduce current (I) resistance (R) (IR) drop to achieve the desired drive strength in the integrated circuit.
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.