Semiconductor/Solid-State Device Manufacturing TRIZ Cases

Split gate conductor layers around semiconductor pillars cut word-line coupling noise and widen read/write margins in capacitorless memory cells.

Extrinsic carbon doping in a dual superlattice GaN buffer improves current collapse, wafer uniformity, and surface protection.

A dual-plane heater layout pairs a coil main element with a 2D sub element to improve wafer thermal uniformity and fine temperature adjustment.

A sidewall hard mask protects DRAM active regions during buried word line trench etching, preserving alignment margin and reducing shorts and leakage.

Periodic carrier cleaning and selective susceptor polysilicon coating suppress particles, backside deposition, and adhesion scratches on wafers.

Rounded word-line ends in stacked nonvolatile memory reduce electric field concentration, suppress leak currents, and improve storage efficiency.

Purge gas and partition walls split the chamber into isolated processing regions, limiting gas mixing and improving substrate uniformity.

A zirconium-aluminum oxide concentration gradient cuts leakage current and improves breakdown reliability in semiconductor memory capacitors.

Targeted backside brush cleaning removes wafer contaminants by location to prevent tilt and height errors that degrade lithography exposure.

An air-gap gate dielectric and passivated 2-D channel structure improve mobility, lower contact resistance, and support reliable scaling.

Removing the hard mask before FinFET CMP and tuning slurry composition reduces scratches, residue peeling, and CD variation.

A mixed-solvent developer with surfactant and acid or base reduces resist scum and residue, improving pattern definition at smaller semiconductor features.

Hydrogen-containing plasma removes gate-stack residues before trench recess capping, improving etch quality and semiconductor reliability.

A recessed epitaxial source/drain profile with laser annealing and silicide formation enlarges contact area and lowers contact resistance.

Etching a dielectric dummy fin into a tapered profile lowers trench aspect ratio, easing FinFET gate patterning and deposition.

A tilted implant through opening and block-array mask zones creates two substrate depths in one lithography step, improving alignment and cost.

Embedded microcapsules break during dressing and UV-cure released polymer to heal CMP pad damage, extending pad life and stabilizing removal rates.

A carrier-wafer process with STI, DTI, and passivation enables thinner high-power semiconductor substrates without losing isolation or connectivity.

A nitrided and oxidized metal base guides bottom-up trench filling to form seamless contact plugs and reduce electrical leaks at source/drain and gate regions.

A lithiated sacrificial layer blocks selective growth, cutting lithography and etching steps while improving MIM capacitor alignment.

Recessed gate electrodes and selective dielectric enable self-aligned contacts over active regions, reducing layout area while avoiding source-drain shorts.

Magnetic upper and lower supports rigidly fix substrates during transfer and storage, limiting abrasion, warpage, and capacity loss.

A slit and select channel pattern improve overlap, current paths, and leakage control in 3D stacked memory gate structures.

A ferroelectric high-k gate stack creates negative capacitance to sharpen subthreshold slope and cut standby power in scaled transistors.

Segmented fin-height implantation with hard mask protection forms a FinFET super well that limits punch-through damage and improves carrier mobility.

A front-back substrate temperature gradient steers gas into recesses during cyclic deposition, improving fill uniformity and residue removal.

A doped or porous low-k sidewall spacer cuts gate-to-contact parasitic capacitance, improving switching speed and lowering power use.

Controlled oxygen in a CVD conductive film bonds to silicon in the oxide layer, improving adhesion without raising resistivity.

Body contact regions placed beside vertical DRAM transistor bodies help suppress floating body effects and improve charge retention and power distribution.

Multi-layer SiGe epitaxy with graded Ge and boron concentrations lowers source/drain resistance and stabilizes contact interfaces in FinFETs.

Solution-processed inorganic or hybrid backside films reduce wafer bow while withstanding high-temperature semiconductor processing.

Interlocking well shapes and fin-cut dielectric isolation curb CMOS latch-up while reducing tap-cell area and layout-dependent effects.

Selective etching creates different FinFET source-drain heights, improving electron mobility and contact resistance despite tight patterning limits.

Carbon and nitride capping layers enable selective etching that keeps gate and source/drain contacts aligned and avoids shorts.

A crystallized core-shell hard mask fills gate gaps without seams or voids, improving etch resistance and reducing FinFET defects.

A pre-assembled purge module splits filtered gas to front and rear container zones, reducing installation errors, particles, and contamination.

A rectangular laser scribe patterns the mask, then plasma etching singulates dies with less chipping, cleaner edges, and tighter wafer spacing.

Using oxide layers with different etch-back ratios, this case forms smooth trench slope liners that flatten electric fields while cutting mask complexity.

A low-density electric-field relaxation region disperses edge field concentration in a super junction structure to preserve breakdown voltage and low ON resistance.

A movable cover and base shrink the drying chamber, cutting supercritical fluid use while protecting fine semiconductor patterns from surface tension damage.

A piston-driven pad carrier uses shaft pressure and an axially flexible, torsionally rigid member to keep substrate cleaning pressure consistent.

Patterning epitaxial layers into isles before substrate thinning relieves stress, limits wafer bow, and enables standard CMOS handling.

Reactive oxygen and nitrogen species in plasma-activated water modify nanoparticle surfaces without etching, improving dispersibility and luminescence.

An eccentric-drive active plate aligns electronic components at micro or nano scale while removing floating parts that wear, deform, and raise cost.

Heating or cooling the cover creates an interference fit that seals fluid channels and improves electronic heat dissipation.

Temperature-switched adsorption inhibition preserves selective film growth on different substrate bases without etching or damaging adjacent surfaces.

Short rapid thermal annealing cuts compressive stress in amorphous carbon hardmasks while improving etch selectivity and throughput.

Perimeter trenching or stealth laser modification blocks edge defect propagation during wafer thinning, improving yield and vacuum hold.