Semiconductor/Solid-State Device Manufacturing TRIZ Cases

An aqueous nitric-phosphoric etchant speeds tungsten and TiN recess while limiting aluminum oxide damage in 3D NAND processing.

Plasma surface treatment removes impurities and neutralizes charge on amorphous silicon, improving photoresist adhesion and pattern transfer accuracy.

Backside crack formation cleaves semiconductor wafers while keeping residual stress away from element structures to reduce chipping and reliability loss.

Pressure-equalized sealed substrate carriers protect wafers from particulates and reactive gases during transport and tool docking.

A lift-off patterned aluminum oxide hard mask resists erosion in deep reactive ion etching, preserving high-resolution feature dimensions.

Partial wafer loading from a heated multi-slot retainer cuts chamber temperature loss and shortens semiconductor processing time.

Two patterned mask layers jointly define smaller etch openings, pushing DRAM feature scaling past photolithography resolution limits.

An As-containing epitaxial barrier blocks P diffusion into the channel and limits out-gassing during metallization in FinFET source/drain regions.

Using silahydrocarbon precursors, this case shows stoichiometric SiC film growth with low hydrogen and no post-deposition annealing.

A slow-diffusing implanted capping layer contains phosphorus up-diffusion in vertical MOSFET epitaxy, lowering Rds(on) and stabilizing dopant profiles.

Gradual stress-transition films flatten bowed substrates with sloped interfaces, improving photolithography overlay accuracy and reducing yield loss.

Epitaxial collector and emitter links to the substrate create thermal exit paths that cut self-heating and support higher fT/fmax in lateral HBTs.

Rapid thermal oxidation forms a fully oxidized gate oxide layer that improves ROX scalability, breakdown voltage, and hot-carrier reliability.

Narrow, segmented support pillars with spigot positioning reduce film thinning near columns while preserving substrate support strength.

Sidewall insulation covers exposed high-k dummy pattern edges at isolation steps, preventing detachment and re-adhesion during semiconductor processing.

Selective oxygen implantation enables low-temperature p-type activation, avoids etching loss, cuts leakage current, and raises breakdown voltage.

A rear trench and laser-formed reformed portion guide uniform crack propagation, reducing chipping, surplus material, and split-chip defects.

Laser-formed modification layers enable cleaner stacked substrate thinning after bonding, cutting energy use and avoiding radioactive shielding.

A halosilane and ammonia or hydrazine cycle enables selective silicon nitride growth on target surfaces while preserving etch resistance without plasma.

Gas blown at the substrate underside before chamber entry removes residual liquid, shortening supercritical processing and reducing defects.

A material-layer etch mask splits photoresist patterns into sub-patterns, increasing template density while pushing line widths below 100 nm.

Cyclic carbon deposition, oxygen surface modification, and B/Si/Al passivation suppress sidewall bowing in high-aspect-ratio dielectric etching.

Embedding nickel during silicon carbide grinding and then laser annealing forms low-resistance ohmic contacts with fewer process steps.

Wider hard masks on LNA metal gates expand gate area to cut noise figure and gate-to-body capacitance in high-k transistor fabrication.

Masked dual-trench interconnect formation limits over-etching and short-circuit risk while preserving dense semiconductor routing.

A planar inner heater and coil outer heater share one ceramic plate to reduce inner-zone temperature variance and keep wafer heating uniform.

A zinc precursor and thermal soak form a self-forming barrier at the liner-dielectric interface, improving adhesion and lowering interconnect resistivity.

Deformable films and incompressible fluid apply uniform pressure and temperature control for stable multi-substrate semiconductor bonding.

Raised epitaxial source and drain regions plus a nitride-covered drain extension cut electric field and improve SOI high-voltage breakdown.

Metal spacers shield III-N contact metallization during cleaning and deep trench etching, improving contact quality and process reliability.

An injection region near the trench bottom lowers local threshold voltage to curb pass-gate charge migration and DRAM row hammering.

A TiN-polysilicon trench gate layout lowers DRAM word-line resistance while limiting GIDL and improving refresh, row hammer, and data retention.

Separate word line patterning stages keep aspect ratio at 5 to 15, preventing collapse and enabling higher memory cell density.

A graded SiGe source/drain keeps channel strain while lowering resistance, improving transistor mobility and speed.

Stacked mandrel layers with different etch rates shape straighter sidewalls and denser semiconductor patterns with fewer patterning steps.

Ion-beam sputtering reshapes hardmask trench sidewalls before elongation, reducing tip-to-tip shorting while preserving critical dimensions.

Thin ruthenium and cobalt liner layers increase copper gapfill volume and lower interconnect resistivity without causing voids in scaled vias.

An acid polymer film replaces continuous HF and peroxide flow, cutting chemical use while preserving precise substrate oxide etching.

Collapsible bellows and extensible seals let a flat vacuum chuck clamp severely warped wafers without leaks or wafer discard.

Fast-switching valves and gas reservoirs enable sub-3-second etchant pulses that preserve SiO/SiN selectivity and reduce leakage risk.

Peripheral-contact lift pins and softer tips cut backside contact, reducing particles and scratching during substrate transfer.

Polymer-filled trenches in non-device wafer regions enable precise die separation with less chip damage and stronger metallization support.

A patterned polarizer adds high-transmittance non-polarization regions over the module to preserve sensitivity without hurting display quality.

Rollers spin wafers to disturb the wet bench flow field, dispersing residue and reducing contamination, damage, and yield loss.

Alternating mild and strong oxidation cycles builds oxide films with better thickness uniformity, step coverage, and processing resistance.

Controlling Te-N-cation ratios in the switching layer cuts leakage current and preserves a high ON/OFF ratio in resistance variable memory.

Varying nozzle distance by resist-layer viscosity improves photoresist thickness flatness and critical dimension uniformity across wafers.

A two-stage etch-back with hard mask plasma etching keeps fin tops flat, reducing height variation and preserving buried word line electrical properties.

A recessed baseplate around the electrode pin increases insulation distance, suppressing discharge in thin electrostatic attraction members.

A buried gate with strained source and drain stressors suppresses short channel effects and boosts carrier mobility in scaled memory cells.

Controlled vacuum-to-pressure switching presses dicing tape into TAIKO wafer recess corners, cutting attachment time and reducing chipping risk.

Vertical and retrograde well profiles improve isolation between closely spaced memory wells, helping prevent punch-through and breakdown.

Cyclic etch with selective capping protects the hard mask while improving sidewall control and pattern fidelity in deep dielectric patterning.

Cover tape protrusions align with carrier pockets to hold semiconductor dies in place and prevent vibration- and bending-induced shifting.

Defective wafer regions are removed and filled with matching good chips on a support substrate before lamination to preserve laminated chip yield.

A recessed second electrode and raised third electrode improve capacitor breakdown voltage while preserving protective film adhesion.

A vertically stacked treatment unit above the wafer handler cuts semiconductor tool footprint while preserving capacity and radiation window permeability.

A co-deposited Ag-Mg-LiF transparent top electrode improves OLED light extraction and electron injection while lowering voltage and power use.

Using an oxide semiconductor channel and epitaxial silicon at the ground selection line cuts leakage current without sacrificing 3D flash integration.

Mg doping and hydrogen-free annealing in the gate dielectric raise GaN transistor threshold voltage up to 12V without changing epitaxy.

An embedded isolation layer and deep trench raise LDMOS breakdown voltage and curb parasitic bipolar effects without full SOI cost.

Signed distance images let deep learning recover curvilinear mask shapes quickly and accurately without extra ILT iterations.

Alternating Si-C and Si-N precursor cycles preserve key bonds to form SiOCN films with better processing resistance and lower dielectric constant.

A non-uniform contact bottom surface increases source/drain contact area, lowering resistance and improving FinFET connection reliability.

In situ plasma and nitrogen soak treatments smooth MTJ top electrodes, limiting spike defects from high-grain deposition and improving cell performance.

A CMP slurry using silica, azole inhibitors, oxidizer, and polyacrylic surfactant boosts copper removal while limiting tantalum loss, dishing, and erosion.

Layered SiGe source/drain regions vary germanium concentration to preserve channel strain while limiting dislocation growth in scaled transistors.

Seal members and extraction openings keep immersion liquid away from the substrate underside while supporting the edge to preserve flatness and cleanliness.

Epitaxial lift-off on InP VCSELs enables dielectric or metal mirrors and stronger optical and current confinement for longer wavelengths.

By oxidizing phosphorus-doped silicon into an etchable oxide, this case removes the doped film while preserving adjacent undoped silicon.

Wedge-shaped wafer supports cut contact area and keep wafer edges off uprights, reducing contamination transfer during storage and transport.

A non-aqueous molybdenum etchant balances oxidant, chelate, and inhibitor levels to control etch rate and prevent residue in IC fabrication.

A 12K/6K carbon fiber stack enables clean machining of wafer carrier plates without pitch, preventing fraying while keeping strength and heat resistance.

A dual-thickness gate oxide in a SiC IGFET lowers oxide electric field, preserving low on-resistance while preventing punch-through breakdown.

A stepped conductor in a recessed DRAM structure cuts gate-induced drain leakage while preserving low resistance through capping-layer geometry.

A multilayer silicon nitride and oxide offset spacer blocks gate-side epitaxial overgrowth, reducing leakage and stabilizing MISFET behavior.

Conductive bridges on chuck embossments create low-resistance grounding paths that dissipate residual wafer charge and prevent sticking.

Patterned high- and low-interaction wafer backside regions switch friction during loading to cut holder wear, WLG distortion, and overlay error.

Isolation layers between nanowire gate electrodes cut parasitic capacitance while preserving crystal quality and integration density.

A barrier and adhesion layer protect the silicide contact plug from diffusion-ion damage, improving semiconductor electrical reliability.

A silicon-rich precursor soak plus UV/oxygen treatment improves seam-region dielectric quality, cuts oxidation, and avoids lengthy annealing.

Tilt ion implantation and pre-clean remove dielectric necking at source/drain contacts, enlarging the opening for void-free metal fill.

A porous, highly doped silicon layer with high-temperature annealing enables clean layer splitting, limits dopant diffusion, and supports substrate reuse.

Splitting complex mask layouts into multiple photomasks improves pattern precision for bit lines, landing pads, and storage nodes.

A high near-surface gallium doping profile cuts source/drain contact resistance in scaled FinFETs with very small silicide contact areas.

Different roughness in the membrane center and edge balances CMP polishing rates, prevents edge underpolishing, and eases substrate release.

A bumped gate oxide directly linking HV fins extends channel length, lowers voltage loading, and reduces leakage in integrated HV/LV FinFETs.

A CVD insulator film and oxidized barrier silicon layer block boron diffusion in SOI wafer bonding while preserving resistivity and limiting warpage.

A monolithic substrate support uses a heated shadow ring and directed purge gas to limit wafer edge deposition and improve chamber-to-chamber uniformity.

An intermediary sensing element keeps the sensor isolated from process fluid while preserving fast, accurate measurement in compact semiconductor flow control.

An N-P-N sandwich edge termination with a polysilicon field plate raises MOSFET breakdown voltage while limiting punch-through and process complexity.

Segmented carrier support prevents adhesive intrusion into bump pits while enabling safe grinding of thin semiconductor wafers.

A buffer storage add-on uses a robot to transfer containers into sealed chambers for automated workpiece handling.

A tri-layer structure with a pattern defining layer and etch stop layer transfers features into material layers.

Alternating silicon and oxygen-doped layers limit lateral out-diffusion of source/body contact doping to reduce threshold voltage variation.

Focused laser irradiation converts monocrystalline semiconductor regions into polycrystalline structures, preventing stress-induced cracking during singulation.

SiGe oxidation creates strain for carrier mobility while epitaxial growth recovers the reduced channel width.

An inter-buffer delivery device redirects unprocessed substrates from a failed unit to a functional buffer, resolving idle time bottlenecks.

Laser annealing forms ohmic contacts on silicon carbide substrates, preventing wafer warping and electrical deterioration caused by high temperature processing.