Semiconductor/Solid-State Device Manufacturing TRIZ Cases

A LaAlO3-based multilayer gate stack lowers trench electric field in SiC devices, improving dielectric breakdown reliability without p+ regions.

Separating plating chemicals until just before use suppresses liquid deterioration and enables void-free filling of miniaturized vias.

High-temperature SiC contact silicization is moved ahead of gate formation to protect high-k and H-rich dielectrics from thermal damage.

A nonconformal sacrificial layer reshapes 3D memory channel holes for tighter diameter control, cleaner etching, and more reliable plug growth.

A patterned oxygen-blocking barrier enables selective high-temperature annealing in gallium oxide wafers, tuning carrier concentration with less damage.

Reverse sputtering extends metal onto contact-hole sidewalls, forming concave silicide contacts that cut resistance and DRAM RC delay.

A non-uniform barrier layer under P-GaN reshapes 2DEG at the gate edge to cut leakage current and improve HEMT reliability.

A carbon-doped trench liner cuts hydrophilicity and capillary forces during wet drying, preventing pillar toppling in 3D memory fabrication.

A SiO2-HfO2-Al2O3 gate stack cuts interface state density in SiC MOSFETs, reducing annealing demand while improving threshold stability.

A vertical gas curtain across the interface opening blocks moisture and contaminants during wafer transfer, helping protect yield.

Controlled gas in the transfer chamber keeps developer-coated substrates stable between process chambers, reducing moisture defects and damage.

A robot-served linear chamber layout cuts semiconductor tool footprint while preserving flexible multi-step processing and throughput.

Front and rear stoppers fix wafer carriers on a base, preventing tilt and wafer slip during placement and removal.

Alternating metal oxide and silicon oxide sub-cycles deposit conformal, isotropic oxide films at lower temperatures for high-aspect-ratio features.

Alternating conductive and insulative tiers with isolated memory blocks improve gate-last electrical access, isolation, and data retention.

A polysilicon shielding structure protects the junction termination region from high-voltage fields while reducing area and preserving breakdown stability.

Balancing inert gas flow from asymmetrically placed suppliers adjusts wafer film thickness distribution for more uniform semiconductor deposition.

A temporary solid support formed from a second liquid prevents microstructure collapse during substrate drying, then sublimates for simpler processing.

Preformed crack propagation guides steer vertical fracture during dicing, enabling cleaner semiconductor chip separation with less damage.

A plasma-less ozone process oxidizes the top seal layer while limiting underlying oxidation and NH3 outgassing that can damage FinFET gate spacers.

Using one lithographic mask for mandrel formation and trimming improves line-termini placement and reduces SADP defects below CD limits.

A dual-layer hard mask around the FinFET gate plug helps cut contact resistance variation and capacitance in scaled transistors.

LiF co-deposition in Ga2O3 epitaxial layers reduces crystal defects and supports stronger UV emission across a wider wavelength range.

A high-pH alkaline etchant with controlled hypohalite ions boosts silicon wet etch rate across varied chip structures while avoiding metal cations.

Alternating oxidizing and reducing gases etches metal wiring while restoring oxide films, limiting resistance rise and preserving etch control.

Heated phosphoric acid mixed with hydrogen peroxide or nitric acid removes ether-bond resins while suppressing silicon substrate corrosion.

A temperature-adjusting pipe compensates for unequal solution pipe lengths, helping stacked chambers maintain uniform pattern formation.

Inclined HEMT gate sidewalls formed by fluorine etching suppress fringing-field leakage under high forward gate bias.

Pulse-shaped laser control targets the weakest bonding interface to improve edge trimming and substrate separation with thin absorbing films.

SiO2-masked trenches confine TMD nucleation for layer-by-layer wafer-scale growth of single-domain 2D heterostructures on arbitrary substrates.

A stage groove linked to a single through-hole spreads suction more evenly, preventing substrate slip during vacuum film deposition.

A two-phase center-to-edge spin etch removes SOI terrace oxide uniformly while limiting HF undercuts and preserving backside oxide.

A wider active gate and narrower dummy gate improve channel control, cut sub-threshold leakage, and preserve FinFET cell pitch.

Tailored robot placement offsets by wafer specific resistance improve susceptor centering, layer thickness uniformity, and particle control.

Bubble-free pre-wetting in vacuum prevents cavitation damage during ultra/mega sonic substrate cleaning while preserving particle removal.

Asymmetric gas port geometry and an inclined slit boost ALD gas flux and cut downflow, improving step coverage in thin-film deposition.

A conformal pre-etch protection layer limits undercutting and sidewall roughness during cyclic plasma etching of high-aspect-ratio features.

Restriction grooves hold substrate upper edges during wet processing, preventing floating, disorder, and particle generation in the tub.

Annealing the seed layer raises orthorhombic phase content in ferroelectric memory, improving switching speed and data reliability.

A sacrificial-layer cavity with a gate liner and gap cap improves VFET isolation, lowering parasitic capacitance and supporting denser scaling.

Multiple nozzles merge tin drops into elongated droplets timed to the laser focus, improving EUV plasma stability and energy conversion.

Keeping tilt and scan angles within 50° improves within-wafer uniformity in high-tilt ion implantation and etching without chamber changes.

A buried oxide pedestal enables III-V lateral bipolar transistor growth on silicon, boosting current gain, breakdown voltage, and cut-off frequency.

Remote plasma drives fluorine or nitrogen radicals through the n-type work function metal to passivate gate dielectric defects below 100°C.

A dual thermal- and plasma-ALD sacrificial film enables uniform trench etching below 150°C and avoids separate high-temperature removal.

An ethynyl-derived resist underlayer coating improves heat resistance, limits weight loss, and maintains planarization on uneven semiconductor substrates.

Die gaps are widened during wafer cleaning so spray solutions can remove foreign materials faster, then spin drying cuts residue and defects.

A plasma-free ALD route uses organometallic precursors and mixed nucleophilic-electrophilic gases to improve step coverage and reduce nitrogen incorporation.

An etch stop layer and air gap in STI keep wordline trench depths uniform, reducing parasitic capacitance, leakage, and wire resistance.

A porous pellicle frame equalizes pressure and filters particles to keep EUV mask membranes flat, intact, and thermally stable.