Semiconductor/Solid-State Device Manufacturing TRIZ Cases

Selective dielectric removal protects STI edges during silicide formation, reducing junction leakage and flicker noise.

Inert-gas purging before vacuuming keeps hydrogen-oxygen gas in the gas phase, reducing film peeling and contamination.

Selecting low-affinity solvents by pattern wettability cuts residual solvent retention and reduces collapse during substrate drying.

A protective nitride and oxide liner enables thick, uniform FinFET gate oxide growth while limiting silicon loss and parasitic capacitance.

Heating a sulfuric acid liquid film under ozone boosts peroxydisulfuric acid formation for faster organic film removal with less residue.

Embedding vectors and gradient explainers approximate Shapley values to quickly identify wafer process factors driving yield.

Feedforward magnetic force control adapts a maglev substrate transfer module to damaged wafers and equipment, improving motion accuracy and uptime.

Pnictogen surface modification followed by halogen etching improves silicon selectivity and precision while limiting thermal damage before epitaxy.

A suppression layer blocks sidewall growth so films fill semiconductor concave features from the bottom up without voids, seams, or extra etching.

Selective silicon oxide growth on silicon oxide over silicon nitride improves fine feature patterning by using adsorption-controlled precursor cycles.

RF sputtering with annealing forms single-crystal Gd2O3 on Si or Ge, enabling SIS substrates suited to high-volume manufacturing.

Forms a third film by precursor physisorption, then selectively removes the first film to create accurate air gaps without plasma damage.

An insertable mask aligns vacuum holes on one stage to hold different substrate shapes, avoiding labor-intensive stage changes and replacement cost.

A buffer-lined gate separation region applies tensile stress to gap fill layers, enabling smaller gates with fewer defects and better transistor integrity.

Discrete boiling enhanced layer islands attach directly to the IC substrate to cut thermal resistance, improve cooling, and reduce warpage.

An inclined vibrating contact region drives contaminants parallel to the substrate surface, improving liquid-based cleaning efficiency.

Controlled gas supply and staged exhaust shorten reactant discharge time, improving throughput and low-resistance film formation.

A phosphoric acid etchant with hydroxyl solvent and organosilicon additives removes Si3N4 while protecting SiO2 in dense semiconductor stacks.

Guard rings and low-energy implantation spread edge electric fields in nitride semiconductors, raising breakdown voltage while avoiding surface damage.

Stacked drift structures enable bi-directional voltage blocking and high current conduction while limiting active area and resistance.

A strain-relaxed GaN buffer on hetero-substrates suppresses nanopipes without blocking layers, cutting leakage in micro LED structures.

Integrated trench-isolated protection areas provide on-chip ESD shielding between active regions while supporting larger voltage differences in less chip area.

Composition is tuned to the strained seed layer at growth temperature, enabling thick epitaxial stacks without relaxation defects.

A thin phosphorous-doped silicon buffer layer blocks As out-diffusion during epitaxy, improving dopant uniformity and breakdown voltage.

CVD deposition cycles with diborane pulses improve contact sidewall coverage, grain size, and resistivity in scaled semiconductor structures.

Mask sidewall spacers and doped mask regions enable precise second-trench formation beyond photolithography limits while reducing ion scattering.

A segmented anti-splash baffle decelerates etchant in single-wafer wet cleaning, reducing wafer defects while enabling etchant recovery.

Selective stressor formation boosts carrier mobility in low-Vt transistors while limiting leakage in high-Vt devices.

Sequential reactive-gas and inert-gas annealing cuts interface defects in wide band gap gate oxides, boosting mobility and limiting threshold drift.

A bimetal pin structure offsets heater-induced chuck bending, keeping the substrate flat while reducing redesign and machining effort.

A diamond base with epitaxial BeO and GaN layers improves heat dissipation, enabling higher-power and higher-frequency GaN devices.

A BaSnO3/LaInO3 heterointerface uses buffer and doped BLSO layers to form 2DEG with higher conductivity, carrier density, and mobility.

High-flow wet etching with an optimized spray scan thins bonded wafers to expose the dielectric layer with low TTV and no silicon residue.

A soft-to-hard amorphous carbon mask reduces twisting and profile distortion during high-aspect-ratio etching while preserving selectivity.

A tangential etchant jet on a rotating semiconductor edge forms precise contours without masks, improving reproducibility and lowering process steps.

Selective sidewall removal of the work-function metal frees more gate volume for conductive fill, cutting resistance in scaled transistors.

A bi-layer resist stack uses EUV flood exposure and diffraction to cut scum and residue, improving line width and edge roughness.

Laser scattering patterns verify wafer alignment, cleanliness, and surface quality while reducing handling-related misalignment errors.

Plasma-treated photoresist and a protective oxide film preserve mask profiles during etching, reducing line width roughness in sub-50 nm features.

Plasma-enhanced source/drain epitaxy enables lower-temperature growth for better dopant activation, abrupt junctions, and reduced strain relaxation.

Selective deposition protects exposed SiN corners during aggressive etching, reducing corner loss, pinch-off, and process variability.

Multiple fluid supply units rapidly pressurize the treatment space to deform the seal evenly and keep contaminants out.

A low-temp ex-situ AlN seed plus a high-temp in-situ seed improves GaN template crystal quality and cuts vertical leakage current.

Thermal interface plates and compliant shuttle supports keep semiconductor packages heated and aligned without thermal expansion damage.

Tensile stress from insulating layers boosts SiC MOSFET channel mobility, improving switching speed without sacrificing voltage resistance.

A heterocyclic sulfur-linked leveling agent redistributes current density to fill mixed-aperture through holes uniformly while reducing surface copper and dimple.

A thin high-oxygen AlGaN portion over a thicker low-oxygen region suppresses dislocations, cutting defects and leakage current.

Natural oxide is removed through H/N/F surface modification and desorption, then chlorine treatment enables accurate silicon etching with less roughness.

A two-step silane and surfactant treatment makes semiconductor pattern surfaces water repellent to prevent sticking and collapse during drying.

Segmented gas supply and exhaust create uniform purge flow that blocks external gas, removes wafer fumes, and stabilizes humidity.

An oxide-coated multilayer TMD film treated with aqueous ammonium sulfide enables low-cost control of surface finish and thickness.

A silicon-containing middle layer in a multilayer lithography stack improves line width roughness and local CD uniformity at smaller pitch.

An integrated shallow-first trench sequence cuts cone defects and process complexity in conductive deep trench isolation fabrication.

A recessed silicon cap expands the epitaxy-channel interface in FinFETs, reducing current crowding and contact resistance.

Graded germanium and boron profiles in FinFET epitaxy improve source-drain contact resistance and carrier mobility in scaled transistors.

A sacrificial-layer MTJ process shrinks MRAM chip area while lowering power use and improving sensitivity under temperature variation.

A multi-slope trench and depression edge structure reduces field concentration and premature avalanche in compact semiconductor diodes.

A β-diketone and NO2 gas mix etches high-bond metal oxide films at about 300°C, reducing device damage without plasma equipment.

Thermal reflow extends dielectric coverage past the n/p boundary to prevent etch undercut and protect work function material in nanosheet FET fabrication.

Defined drift-layer trap levels and density align switching loss at the same on voltage across silicon-based semiconductor materials.

A two-slurry CMP sequence smooths silicon wafers while improving removal uniformity, reducing surface defects, and extending pad life.

Independently moving bowls adjust passage width and shape to curb fluid rebound and backflow, reducing substrate contamination during cleaning and drying.

Selective silicon oxide growth restores metal gate height after nanometer-node processing, preventing gate collapse and overlayer damage.

Varying precursor pressure across TiN deposition cycles builds a smooth base layer, then adds conformal coverage with improved conductivity.

A combined hard mask and spacer-based patterning flow forms sub-10 nm fin structures while avoiding photolithography diffraction limits.

Multiple vertically distributed upflows suppress tank downflow, helping bubbles reach the substrate uniformly for higher-quality processing.

An isolation portion in the dielectric limits gate-cut over-etching, protecting source/drain regions while maintaining tight semiconductor dimensions.

Moving segmented wafer supports away at the liquid surface prevents trapped bubbles during wet cleaning or etching, reducing surface defects.

Oxygen-rich oxide layers block hydrogen and silicon entry into oxide semiconductor transistors, cutting off-state leakage and threshold drift.

Selective air-gap isolation in metal gate trenches cuts void defects and drain-to-gate shorts while preserving capacitance control.

Connecting metal layers and sacrificial oxide enable clean epitaxial lift-off, protecting vertical devices while allowing engineered substrate reuse.

Parallel vertical TFTs formed in BEOL raise MRAM drive current while preserving FEOL area for denser memory and logic integration.

Tapered through-holes vent nitrogen and release heat in GaN chips, suppressing distortion during transformation layer formation.

Patterned grooves and lateral GaN epitaxy block dislocation extension, improving material quality for high-voltage devices and longer-life LEDs.

A dual-damascene interconnect doubles as a GaN field plate, overlapping the gate to reshape the electric field and reduce RC and power.

Corner spacers in FinFET gate recesses increase gate-to-source/drain separation, cutting parasitic capacitance and leakage current.

Offset laser-modified layers let diamond wafers cleave cleanly along planned lines, reducing blade wear, cost, and division defects.

An HBr-only linewidth cure step narrows mask features during polysilicon gate etch to reduce CD differences across gate sizes.

A self-aligned SiGe HBT uses spacer offset and sacrificial oxide to block base poly linkup overgrowth into the emitter cavity.

A nitric-acid etching composition improves metal surface morphology while suppressing etch rate for even multilayer 3D NAND etching.

Selective oxygen-bonded doping in oxide semiconductor regions suppresses vacancies while keeping low-resistance source and drain paths.

An insulator-filled trench with a liner and damaged region improves HEMT isolation by blocking leakage current and moisture ingress.

Alternating trenches and self-aligned shielding regions cut on-resistance while stabilizing short-circuit current limitation in power FinFETs.

Oxide-filled divots anchor Si nanosheets and prevent unwanted SiGe etching at source/drain ends, avoiding transistor failure.

Low-temperature ALD keeps HZO amorphous in recessed memory stacks until annealing, enabling controlled ferroelectric phase formation.

Flexible shafts, motors, and sensing automate susceptor leveling in tight semiconductor tool spaces, improving accuracy and reducing manual setup time.

Humidified-air crack formation and volatile-component evaporation speed cleaning film removal on hydrophobic wafers while lifting trapped particles.

Cyclic vapor deposition of magnesium indium zinc oxide forms conformal layers with better hydrogen stability, higher mobility, and lower leakage.

Different transistor structures on one substrate preserve pixel aperture ratio while enabling fast driver operation in high-resolution displays.

Conductive trench isolation gives SPADs a deeper, lower-impedance cathode path, reducing early edge breakdown and improving sensitivity.

A tungsten-molybdenum stack with a thin W cap and ammonia-free nitride cap lowers contact resistivity and keeps it stable after annealing.

A holding ring beneath a rotating wafer retains cleaning liquid on the back surface, enabling more effective two-sided wet processing.

Water-based rinse chemistry with dipole solvent and crosslinking reduces NTD resist swelling, collapse, and peeling while preserving rinsing.

Si-selective slurry polishing thins IC backsides to 1 µm or less at the STI level while preserving functional components for probing and analysis.

Motor torque differences reveal end-effector collisions during substrate transfer, enabling fast stop or reverse control to limit damage.

A gate extending along the isolation trench sidewall boosts current density, lowers RON, and improves LDMOS breakdown voltage.

An oxidation-formed high-resistivity region creates current blocking without etching, reducing surface states and improving nitride device yield.

A compact shared-base chamber layout cuts semiconductor tool volume and cost while improving substrate transfer, assembly, and mobility.

Sequential NH termination, SiCl4 surface reaction, and oxidation improve SiON or SiO film thickness uniformity without SiCl4 gas-phase decomposition.

A laterally oxidized III-V layer creates a high-resistivity current blocking region without etching, cutting surface states and improving yield.