A gate spacer extending into the undercut region improves replacement gate formation precision while enhancing semiconductor electrical reliability.
Sequential gate and spacer formation cuts quantum circuit gate pitch to R/4 without EUV, improving qubit alignment and stability.
Partitioned source-drain contacts enable top and bottom connections, easing 3D IC interconnect pitch limits while improving signal and power delivery.
Pure work function metal tuning layers fill narrow gate regions to lower resistance and threshold voltage in scaled nanostructure transistors.
A trench-filled contact and metal-semiconductor compound layer cut contact resistance in stacked channel devices while supporting higher integration density.
A two-step patterning and wet etch scheme isolates mixed Vt GAA gates while preventing metal gate retreat at 3 nm nodes.
Machine learning adjusts metal gate etch conditions in real time to keep thin-film thickness and composition on target and reduce wafer scrap.
An isolated two-gate accumulation layout improves quantum dot spin readout by reducing parasitic capacitance and enabling independent 2D electron gas control.
In-situ phosphorus and arsenic co-doped epitaxy creates high-aspect-ratio source/drain regions with abrupt profiles, lower diffusion, and less p-to-n shorting.
A thicker top gate dielectric and thinner sidewalls protect CFET nanosheet stacks during etching while preserving process access.
Insulator regions beneath the source and drain block parasitic subfin leakage in FinFET and gate-all-around transistors.
Selective metal oxide diffusion shifts gate-insulator dipoles to tune threshold voltage across stacked RoW transistor channels.
Ga-doped high-Ge source/drain layers compress vertically stacked channels to improve electrical properties and reliability at higher integration.
Varying dummy fin widths balances etch loading to keep fin heights even, prevent source/drain merging, and support smaller standard cells.
Alternating silicon and de-bond layers form resonant cavities for infrared laser ablation, enabling clean carrier wafer separation with minimal damage.
Separating word lines to the backside and bit lines to the front side cuts RC loading and coupling noise, improving SRAM speed and scaling.
Electrostatic band alignment in a core-shell TFET boosts on-state current while limiting leakage and power use in scaled semiconductor structures.
A convex gate contact plug through dual capping layers helps fine-pattern MOSFETs improve integration, operating characteristics, and yield.
Orthogonal clock routing and gate conductors cut Miller capacitance between adjacent paths, reducing flip-flop power use by 7% to 11%.
Backside power rails shift power delivery off front-side BEOL layers, reducing cell spacing and height while improving routing and shorting isolation.
Complex L-shaped active regions in hGAA transistors enable flexible cell layouts and power savings while managing fine-pattern fabrication.