Semiconductor/Solid-State Device Manufacturing TRIZ Cases

Cyclic oxidation and selective etching form silicon nanostructure recesses below 20 nm with better roughness control and throughput.

Dual-size impurity implantation in the field stop layer lowers IGBT turn-off peak voltage in high-parasitic-inductance circuits while protecting MOSFET integrity.

A multi-joint arm lifts shelf-stacked substrate holders in a hermetically isolated space, cutting dust generation while saving chamber space.

A single mask uses SRAF light leakage to thin photoresist locally, enabling dual critical dimensions while reducing peeling risk and mask cost.

A two-step ion implant forms a well and interface layer to raise SiC MOSFET threshold voltage while preserving mobility and lowering power dissipation.

A titanium- and tungsten-based multi-layer mask improves etch selectivity and limits opening distortion in dual damascene interconnect formation.

A two-step anisotropic and isotropic etch creates a re-entrant FinFET contact plug that lowers resistance and capacitance.

Two-stage photolithography forms supported high-aspect-ratio metal lines in dielectric layers, reducing collapse, shorts, and yield loss.

Graded AlGaN and p-doped buffer layers reduce lattice mismatch and electron injection while preserving high 2DEG density for faster HEMT switching.

A 3D-printed, coated wafer container adds liquid removal and standing holders to enable safer wet overhead hoist transport with less damage.

A urea-structure curing accelerator preserves epoxy curability while enabling laser-activated electroless plating only on irradiated areas.

Controlling insulating film step coverage forms an air gap around the word line, lowering dielectric constant and DRAM parasitic capacitance.

Al2O3 or TiN hardmasks improve fluorine-plasma etch selectivity, protecting top layers and enabling deeper 3D semiconductor stacks.

Fluorine gas etches silicon oxide or nitride at 40-350°C without plasma, preserving metals and amorphous carbon while cutting energy use.

An inclined LED below the rotating substrate heats the lower edge region quickly, overcoming layout limits and shortening liquid processing time.

An inhibitor-based wet etch removes the p-metal work function layer while protecting the high-k dielectric to improve process reliability.

Raised supports and vent holes keep wafers grounded and separated from the body, reducing outgassing and contamination in vacuum processing.

Ion implantation creates a silicon-rich fin region that limits STI-induced height loss, wiggle, and line edge roughness in FinFETs.

Selective low-temperature PECVD molybdenum capping blocks copper diffusion and oxidation in dielectric regions, improving interconnect adhesion and reliability.

Aligned hBN flakes dispersed in graphene form an hBNC channel that stabilizes band gap, limits leakage, and preserves carrier mobility on wafers.

Trenches and deeper field limiting rings in the terminal region shift peak electric field into silicon and raise breakdown voltage.

Preformed division start points and roller-driven tape expansion extend cracks and widen chip gaps to prevent undivided streets in small chips.

Hot-water conversion of an aluminum thin film enables fine structures only at recessed bottoms, avoiding unwanted texturing elsewhere.

Alternating oxygen-plasma passivation and tin oxide etching removes spacer footing while protecting exposed silicon-containing layers.

Different metal gate materials create high-Vt and low-Vt III-V transistors on one wafer, boosting over-drive while limiting static current.

A protective or nitrided layer shields metal oxide Vt tuning films from halide etching during metal nitride deposition, enabling reliable multi-Vt stacks.

A staged dual-vacuum chuck uses a moving low-vacuum path and a static high-vacuum path to secure warped wafers during inspection.

Automatic STB purge mode selection matches supply and exhaust valve configurations to prevent purge device damage and operator error.

A connected contact and field-relaxation region in a SiC gate trench cuts feedback capacitance and switching loss while sustaining carrier flow.

A lift-controlled collection cup changes height with solution flow rate to improve substrate spray capture while limiting rebound and contamination.

A sputtered n-GaN contact layer cuts GaN HEMT contact resistance at lower temperature, preserving channel mobility while reducing cost and process time.

A carbon-doped silicon nitride etch stop enables precise staircase contact depths in vertical memory arrays while preventing punch-through and extra masks.

Cyclic PECVD or FCVD gapfill with plasma densification and selective etching prevents overhangs, voids, and carbon oxidation.

A low-k dopant layer n-dopes TMD channels by surface charge transfer, preserving crystal quality and limiting RC delay.

Laser pre-dicing and Z-axis bevel knife compensation enable narrow dicing lanes while reducing wafer stress and back side chipping.

Periodic thermal signals from a rotating substrate support let a pyrometer measure speed accurately in hot-wall epitaxial chambers.

Two-step laser processing forms shield tunnels and guided cracks, enabling precise wafer separation with less force and fewer edge chippings.

A transparent reticle template and grid let operators mark wafer field areas accurately while avoiding direct contact, contamination, and miscounting.

A single heater block warms the gas hub and branched lines together to stabilize process gas temperature, reduce particles, and save space.

Stored chamber temperature-time data lets the controller correct heater settings between runs for more uniform supercritical drying.

Ion implantation raises boron hard-mask selectivity for deeper DRAM capacitor holes while preserving critical dimension uniformity.

Sensor-based 3D cassette coordinate teaching stabilizes consumable loading and unloading by correcting transfer misalignment in substrate processing.

A gate ring and isolation mask confine ion implantation in p-GaN HEMTs, reducing lateral penetration, parasitic channels, and leakage.

Concentric vibration sources move micro devices through fluid for precise placement on large substrates with lower power than optical transfer.

A continuous nitride film blocks solder paths at the electrode and protective film interface, improving semiconductor reliability.

A narrowed transition layer and air gaps around DRAM bit lines reduce covering-layer impact, resistance rise, and parasitic capacitance.

Selective masking and layer removal form a single stair step structure, freeing die area otherwise lost to mirror image layouts.

Sequential carbon-doped SiGe and silicon mini-stacks cut crystal defects in tall epitaxial layers, helping limit 3D-DRAM leakage.

Combining E-jet printing with spatial ALD enables sub-100 nm area-selective deposition while avoiding substrate transfer, misalignment, and downtime.

A grounded heavily doped trench corner and integrated JBS diode cut electric-field stress, lower diode losses, and improve surge robustness.

A peripheral mechanism layout around the chuck base cuts assembly bulk and speeds chuck pin exchange without removing the spin head.

Fluorine-hydrogen surface reactions plus heating cycles enable atomic-layer tantalum nitride etching with high wafer and pattern-depth uniformity.

An embedded optical reflective layer beneath the dielectric grating coupler boosts coupling efficiency while keeping a fabrication-friendly surface.

A selective nitride etch preserves adjacent oxide layers, removes dummy spacer steps, and reduces substrate damage in semiconductor structures.

A conformal boron or boron-silicon layer enables nucleation-free tungsten filling with lower resistivity, lower impurity carryover, and good coverage.

A shared trench isolation and active-device layout shrinks SPAD transistor footprint while preserving control and electrical isolation.

A ceria-based CMP slurry uses anionic, cationic, and nonionic polymer additives to raise STI oxide-to-polysilicon selectivity and protect the stop layer.

Halosilane precursors enable faster, high-quality silicon deposition on multiple substrates at lower temperatures while limiting halogen toxicity.

An integrated immersion and spin-cleaning setup keeps the wafer on one chuck, reducing transfer time, cost, and damage risk.

A stacked 3C/4H/6H polycrystalline SiC support separates mismatched interfaces to reduce thermal deformation and preserve conductivity.

A polycrystalline silicon charge trapping layer at the buried oxide interface cuts RF parasitic losses while preserving substrate resistivity.

Backside pressure sensing calibrates substrate placement on supports without contour mapping, cutting iteration time and operator variation.

A recessed vacuum susceptor creates pressure differential chucking force to keep wafers stable during high-speed CVD and ALD rotation.

Dummy HKMG gate structures protect high-voltage SOI transistors from CMP dishing while enabling low- and high-voltage integration.

Alternating columns, a buffer layer, and tuned doping raise SEB and SEGR failure thresholds in high-voltage superjunction MOSFETs.

Progressive backside wafer removal exposes insulation between III-V mesas, enabling power transistors with higher voltage support and lower on-resistance.

A trench and polycrystalline separation region absorbs wafer stress and limits dislocations, enabling single-die silicon and heterostructure integration.

A cyclic precursor-purge-oxygen sequence deposits uniform oxide films on one substrate surface while limiting oxidation of organic passivation.

A higher-absorptivity mass in the lift frame shaft redirects bias heat to the substrate center, improving temperature and film uniformity.

A dual superlattice buffer with extrinsic carbon doping and a silicon nitride cap improves GaN wafer uniformity while limiting collapse and leakage.

A central exhaust surrounded by process chambers enables parallel substrate moves, cutting transfer time, footprint, and handling cost.

Interdigitated electrodes measure capacitance changes for ppm gas monitoring, enabling precise semiconductor process control without complex laser sensors.

Plasma curing of an aromatic resin underlayer boosts dry etching resistance and supports finer semiconductor patterns with less collapse.

Rounded word line ends spread electric fields more evenly, suppressing leak currents while preserving high-density nonvolatile memory integration.

Direct vertical handoff to a batch transport mechanism bypasses the single-wafer path, reducing transport load and improving throughput.

Positively charged slurry additives reduce abrasive aggregation during CMP, limiting oxide dishing and improving interconnect surface planarity.

A porous, highly doped semiconductor layer with high-temperature annealing improves dopant distribution and limits diffusion during layer separation.

An etch-stop and bonded sacrificial substrate route improves SOI silicon thickness uniformity while lowering fabrication cost.

An alcohol-based post-water wash with a quaternary ammonium developer improves resist pattern fidelity while reducing residue and linewidth variation.

A blanket backside metallic implant plus laser annealing forms a low-resistance ohmic contact while avoiding oxidation-related adhesion issues.

A constant-temperature bubbler stabilizes vaporized liquid concentration in gas mixtures despite changing gas sources and process conditions.

Filling recessed wafer streets with water before vacuum lamination prevents protective sheet breakage and helps avoid electrode pad deformation.

Alternating low- and high-bias sputtering keeps recessed openings from clogging, avoids voids, and improves metal interconnect reliability.

A tungsten plus zirconium- or titanium-oxide hard mask improves deep silicon-film etching by limiting pattern distortion and twisting.

An ammonia-hydrogen peroxide etchant removes TiO2 selectively while preserving aluminium oxide for semiconductor-superconductor fabrication.

Vertical stacking with stopper layers and a penetrating channel raises memory density while avoiding finer patterning cost and process defects.

Offset blade and table rotation axes trim wafer beveled edges with fewer grain marks and chippings, improving chip yield.

An annular protrusion and groove in the chamber faceplate tune edge plasma and deposition rate to improve wafer film uniformity.

Filtered purge gas is split across multiple diffuser paths in a substrate container to improve distribution, cut contamination risk, and reduce particle generation.

Vapor phase thermal dry development for EUV metal oxo photoresist avoids wet byproducts, limits pattern collapse, and improves line-edge roughness.

Pre-removing gate step height by wet etching enables uniform contact hole depth and reliable gate plug contact in semiconductor fabrication.

Individually replaceable reflector segments cut process chamber downtime while preserving temperature control and uniformity.

A conveyor, lift yoke, and pusher blade automate wafer removal from a pre-sliced boule to improve separation accuracy and throughput.

A perimeter-support frame carrier restrains organic substrate panel warpage during heating to keep temperature and die adhesion uniform.

A dual-zone CVD process decomposes precursors at high heat while depositing TMDCs on flexible substrates at lower temperature without transfer.

Selective developer removal of de-crosslinked overcoat regions enables sub-lithographic mandrel patterning without complex spacer steps.

A mixed-acid etching composition selectively removes nitride films, limits oxide loss, and avoids particle generation in semiconductor processing.

A thermally decomposable, light-absorbing protective film enables laser-formed openings at precise wafer locations while protecting insulating films during plasma dicing.