Self-aligned wall structures shrink GAA gate spacing beyond lithography limits, cutting cell capacitance and improving gate control.
Varying gate oxide thickness around vertically stacked channels helps scaled MOSFETs retain electrical characteristics without sacrificing density.
Selective gate recess and metal layering tune threshold voltages across transistor types while limiting work-function layer loss.
A front-side silicide contact links to a backside via rail, cutting GAA source resistance while preserving FEOL device integrity.
Sequential boron-doped and SiGe deposition suppresses voids in nanostructure transistor source/drain regions, improving resistance and short-channel control.
A dielectric layer creates an electrically floating well in a MOS varactor, lowering minimum capacitance and widening frequency tuning range.
Backside vias tied to GAA transistor source regions expand routing space while improving channel control and reducing leakage currents.
Airgaps beside multigate source-drain features cut parasitic capacitance and contact resistance while preserving gate control in dense IC layouts.
Vertical air-gap isolation between source/drain features and the gate reduces parasitic capacitance while preserving K value in scaled semiconductor structures.
Insulating layers and non-uniform source/drain thickness cut gate overlap capacitance in stacked FETs while preserving current drive.
An inner spacer on one side and an epitaxial layer on the other cut source/drain defects and parasitic capacitance in nanostructure transistors.
Controlled S/D spacers limit lateral epitaxial merging while back-side contacts and power rails improve connectivity and cut area and power use.
Varying gate layer thickness and air gaps in a 3D MBCFET helps tune threshold voltage while preserving integration and reliability.
A cap-free inner gate stack and region-specific work function thickness reduce oxygen imbalance and threshold voltage variation in multigate devices.
A nested dielectric and air-gap structure cuts source/drain-to-gate parasitic capacitance while preserving K value in scaled nanosheet devices.
A dielectric feature separates segmented gate portions to cut capacitance, improve gate control, and suppress short-channel effects.
Trimmed dielectric fins widen gate-fill space while keeping adjacent source/drain features separated in scaled GAA transistor fabrication.
Variable channel and source-drain widths in MBC transistors balance current drive and leakage to improve PPA and operating speed.
A two-material dummy gate dielectric with a thicker top portion protects GAA silicon nanosheets from patterning damage and top-layer loss.
Selective etching and deposition create region-specific channel stacks, balancing low leakage and higher drive current in GAA transistors.
Reshaped source/drain epitaxial features cut parasitic capacitance, prevent merging, and suppress leakage in multi-gate semiconductor fins.
Stacked GAA nanostructures and an overlapping stressor improve channel properties while supporting reliable fabrication at smaller semiconductor nodes.
Pyramid contact nodes and surrounding vertical lines pack 3D nanosheet memory cells more densely while limiting parasitic capacitance.
A low-k gate-top dielectric cap and CESL layout cut parasitic capacitance and shorts in self-aligned multi-gate contacts.
Metal dopants in high-K gate dielectrics create interface dipoles that tune NFET and PFET threshold voltages without thinner work function metals.
An inner spacer layer creates a gap beneath multi-gate source/drain features to cut substrate leakage while maintaining RC delay.
A dual-layer dielectric isolation structure cuts active area spacing and gate-drain capacitance by controlling gate metal overlap in nanosheet FETs.
A three-layer gate contact combines conductive and impurity-doped layers to lower resistance in high-aspect-ratio FinFET structures.
Alternating silicon and non-semiconductor monolayers boost carrier mobility while blocking dopant diffusion in enriched 28Si epitaxial layers.
Offset active contacts in vertically stacked MOSFETs ease routing complexity while preserving density and reliable electrical connection.
Deep impurities in silicon use resonant optical coupling and pulsed magnetic fields to stabilize spin qubits and improve readout.
Conformal dielectric filling of narrow and wide trenches creates isolated two-layer gates for dense multi-directional quantum and semiconductor layouts.
An APT layer isolated from the substrate under GAA source/drain regions reduces junction leakage and latch-up without added process burden.
A negative Schottky barrier induces carriers in undoped nanowire source and drain regions, cutting contact resistance and dopant variability.
By combining nanosheet layers with perpendicular fin channels, this case improves current control, cuts leakage, and preserves carrier mobility.
Wet cleaning and trimming during nanosheet channel release protects sidewall and inner spacers, reducing leakage and improving GAA reliability.
A protected GAA gate stack uses selective epitaxy and fill layers to limit etch damage, cut parasitic capacitance, and improve AC reliability.
A recessed inner spacer liner prevents etch-induced rounding in GAA transistors, improving gate length uniformity and isolation.
Uneven light heating deforms substrate pattern regions to match the mold, improving overlay accuracy despite thermal expansion differences.
A stepped SiGe isolation layer under source/drain blocks substrate leakage paths in GAA transistors and improves off-state reliability.
A graded inner spacer in a high-k gate dielectric helps scaled MOSFETs improve capacitance control, leakage behavior, and stress distribution.
Dedicated key regions with dummy channel and sub-key patterns improve overlay metrology, enabling accurate alignment in dense semiconductor fabrication.
Separate gate portions and extensions give stacked nanosheet FETs independent or shared control, preserving compact footprint and circuit flexibility.
Side spacers on a dielectric fin act as self-aligned etch masks, improving pattern fidelity and electrical separation in scaled FET fabrication.
A dipole layer in the HV gate insulator stack shifts threshold voltage, preserving Vt control despite work function metal limits.
Low-k spacers and segmented gate dielectrics cut metal-gate parasitic capacitance while preserving gate control in stacked-nanostructure transistors.
A horizontal capacitor placed under a nano-FET boosts capacitor volume, read reliability, and memory density without enlarging cell area.
Different etch stop layer thicknesses over source/drain plugs and gates improve FinFET contact profiles, scaling, and electrical connections.
Stacked wire patterns and overlapping contacts raise memory integration density while easing miniaturized patterning and process complexity.
A concave mesa sidewall raises substrate current-path resistance in GAA transistors, cutting leakage while preserving mesa strength.