Semiconductor/Solid-State Device Manufacturing TRIZ Cases

Removing the hard mask before FinFET CMP and tuning slurry pH improves topography uniformity, lowers CD variation, and reduces peeling defects.

Synchronized rotating wafer paddles cut transfer steps in a vacuum chamber, improving wafer positioning and thin film deposition uniformity.

Additives in the 3D memory channel trap crystal nuclei during annealing, cutting grain boundaries, resistance, and noise.

An intermediate-resistivity protection layer shields the HEMT capping layer from etching and reduces gate leakage while preserving electrical consistency.

Additive-controlled phosphoric acid etchants maintain dissolved silica, prevent oxide redeposition, and preserve high silicon nitride etch selectivity.

Selective etching forms insulator-filled cavities under an upper semiconductor layer, delivering local electrical isolation without full SOI wafer cost.

Reversible pitch changes let pick-up head arrays transfer multiple chips quickly while maintaining precise alignment for hybrid bonding.

Coplanar trench isolation and selective oxidation enable different gate oxide thicknesses across voltage regions while protecting semiconductor yield.

A nitrogen-regulated transfer space suppresses metal resist denaturation during sequential wafer processing to keep CD uniform across substrates.

Controlled cured resin film cross-linking blocks seed-layer penetration and enables clean removal between 3 μm fan-out wirings.

Multi-step deposition and dry etching improve high-aspect-ratio trench gate filling, preventing overhangs, voids, and device stress.

A surface control agent tunes adsorption on complex semiconductor substrates to slow ALD growth, improve step coverage, and cut impurities.

A metallic photoresist plus etch-resistant layer improves pattern resolution and line edge roughness at lower exposure dose for dense semiconductor features.

Sandblasted through-hole textures anchor encapsulation material on LED lead frames, reducing leakage while preserving smooth, bright outer surfaces.

Selective mandrel and spacer etching laterally recesses a bridge region to shrink line-end spacing without widening interconnect lines.

Oxide-filled slots isolate central dummy pillars in 3D NAND while keeping pillar dimensions consistent to prevent twisting, bridging, and shorts.

Inner and outer spacers confine fin epitaxy and expose an air gap, reducing lateral growth and parasitic capacitance.

Discharge liquid is reused between substrate washing tanks under resistivity control, cutting pure water use without reducing cleaning effectiveness.

A slit support tube stabilizes quartz process tubes above 1,050°C, limiting deformation, contamination risk, and short-circuit failures.

Through-device backside conductors reach frontside source or drain contacts to improve IC routing while preserving isolation between adjacent cells.

Two Schottky layers with different barrier heights cut leakage and forward voltage drop in a buried-grid power diode.

High-pressure steam oxidation forms a self-limiting uniform oxide on silicon nanoribbons, improving breakdown voltage and drive current.

Selective etching forms a monolayer TMD channel, while doped multilayer source and drain regions improve contact conductivity and reduce defects.

Dry oxidation, selective oxide removal, and epitaxial passivation repair etched trench surfaces at low temperature to cut defects and leakage.

A thermal oxide film in trench-gate IGBT contacts blocks WF6-driven substrate etching and preserves barrier performance during tungsten plug formation.

A split collector crossing an insulating trench improves layer contact, reduces defects, and keeps collector capacitance smaller.

Ion implantation through a hard mask controls doped region depth in GaN HEMT fabrication while reducing extra masking steps and resistance.

A sliding lid and sealed actuator replace manual bolts to speed high-pressure vessel closure, cut particles, and fit clean room use.

A metal gate stack with high-k dielectric and annealed intermixing layers cuts effective oxide thickness, mitigates poly depletion, and improves mobility.

Trench-defined SDB and gate isolation in FinFETs improves channel and threshold voltage control while reducing short channel effects.

Ta2O5-doped dense ceramic layers help electrostatic chucks resist fluorine and chlorine corrosion while preserving dielectric strength and purity.

Micro-void epitaxy enables kerfless SiC layer extraction and substrate reuse, cutting wide-bandgap device cost while preserving low defects.

Organic film-assisted trench etching in SOI aligns layer sidewalls to limit corner oxidation and stabilize capacitance and back-gate control.

A trench beside the cathode redirects current vertically in an SOI diode, raising breakdown voltage for compact isolated high-voltage circuits.

A thin solid SiSiC carrier with raised pockets cuts breakage and weight while securely retaining multiple substrates during processing.

A PET wafer cover encloses the top and sides to avoid adhesive residue while improving shock and vibration protection in transport.

Doped refractory metal heaters in an AlN pedestal keep resistance stable to 850°C while enabling durable multi-zone wafer heating.

A sacrificial layer and CMP flatten DRAM bit line contacts over buried gates, reducing etch-profile defects and leakage-related reliability issues.

Embedded IR or microwave baking removes etch by-products inside the same chamber, boosting throughput and etching performance.

Controlled pellicle stretching reduces membrane sag while preserving EUV transmittance and particle protection for reticles.

Selective epitaxial overgrowth forms lateral GaN heterostructures on a vertical transistor, cutting wafer-bonding parasitics and size.

Isolation structures narrow fin channel regions so multi-fin FINFETs can achieve finer effective channel width control with better IC design flexibility.

Selective impurity doping in a DRAM trench isolation layer terminates dangling bonds, cutting leakage current and HEIP without enlarging cells.

Radial compression drives dislocations from a source layer to relax lattice-mismatch strain while reducing threading dislocations in heterostructures.

When area capacity gets tight, held entry requests let the first vehicle reaching an entry region enter first, reducing route blockage.

A water-soluble light-absorbing mask enables femtosecond laser scribing and plasma etching to singulate wafers with less chipping and damage.

An annealed magnesium layer forms a Mg-nitride interface that lowers p-type GaN contact resistance without costly high-doped regrowth.

A wedge-shaped multi-spacer shields the gate dielectric from wet etchants, improving semiconductor yield during etching and cleaning.

Height-specific calibration corrects Scheimpflug image shift from temperature changes, improving stacked chip placement accuracy.

Recessed inactive channel sections and dielectric separators weaken fringe fields in 3D vertical NAND, improving threshold control and data retention.

Sequential tilted ion implantation and multi-layer spacers improve doping control and lower parasitic capacitance in FinFET fabrication.

A field plate and shield region deplete electrons under reverse bias, cutting on-state resistance and gate-drain capacitance in SiC MOSFETs.

A flexure, weight body, and string keep substrate lift pins vertically aligned to avoid pinching, breakage, and handling faults.

Replacing dielectric material with an air gap between the landing pad and bit line cuts parasitic capacitance and power use in scaled memory cells.