Polycrystalline Material Growth TRIZ Cases
- Silicon Carbide Epitaxial Growth via Organometallic Precursors
Organometallic precursors enable silicon carbide epitaxial growth at controlled temperatures.
- Epitaxial Silicon Wafer Nickel Gettering via Controlled Cooling
Control temperature reduction rate from 500°C to 400°C to segregate nickel impurities, resolving contamination removal at low heat treatment temperatures.
- SiC Substrate Laser Cutting via Pulse Pitch Control
Optimizing pulse pitch and width guides fractures in the thickness direction, resolving accuracy issues from c-plane propagation.
- Crystalline Tantalum Oxide Nanoparticles for Superconductor Pinning
Thermal treatment of a water-free tantalum alkoxide mixture produces 1 to 20 nm crystalline particles that resist dissolution at high temperatures.
- Pr-doped Gd2SiO5 Scintillator Crystal for High-Density Detection
Pr-doped Gd2SiO5 single crystals lower manufacturing costs by using affordable crucibles while maintaining high density and short fluorescence lifetime.
- Diamond Layer Transfer via Graphitic Zone Fracture
Single-step hydrogen implantation forms a graphitic plane to fracture diamond at 800°C, avoiding high-temperature structural defects.
- GaN on Si(100) via Epi-Twist Stress Management
Rare earth oxide buffer layers reduce dislocation density in GaN on Si(100) substrates.
- CMP Conditioner with Patterned Diamond Film for Fragment Removal
Patterned diamond film on bumps improves fragment removal from pores, extending service life of CMP conditioners.
- Noble Metal Halide Perovskites for Stability
Group 10 and 11 transition metals stabilize halide perovskites, resolving poor storage shelf life in optoelectronic devices.
- Silica Crucible Wavy Inner Surface for Silicon Crystal Pinhole Defects
Wavy inner surface shapes in silica crucibles aggregate SiO gas bubbles, preventing pinhole defects in large-diameter silicon ingots.
- Nitride Crystal Substrate Carrier Concentration Uniformity
Group-III nitride crystal substrate with controlled carrier concentration and mobility ratios for enhanced measurement accuracy.
- Ammonothermal Nitride Crystal Growth Using Hydrogen Halide Gas
Introducing hydrogen halide gas reduces oxygen concentration in ammonothermal nitride crystals, preventing coloration.
- Epitaxial Depression Filling via Selective Annealing
A semiconductor depression filling method deposits a thin film and anneals it to form an epitaxial region matching the substrate crystals.
- Semiconductor Device Impurity Concentration Threshold Voltage
A semiconductor device uses layered impurity concentrations to control carrier generation and concentration.
- High Modulus Turbine Shafts via Crystal Orientation
Aligning the <111> crystal direction along the shaft axis increases Young's modulus by 40% while maintaining ductility for high speed rotation.
- Vitreous Silica Crucible Stress Layering for Silicon Crystal Pulling
Inner compressive and outer tensile stress layers in a vitreous silica crucible prevent buckling during large diameter silicon crystal pulling.
- Embedding Carbon Nanotubes in Alpha-Alumina via HCl Firing
HCl-assisted firing embeds carbon nanotubes inside alpha-alumina, resolving surface dispersion limits.
- Porous Spherical Coating Material for Three-Way Catalytic Converters
Hydrothermal crystallization of aluminum salt and silicon source precursors creates a porous spherical structure with 908.6 m2/g specific surface area.
- GaInNAsSb Alloy for Multijunction Solar Cell Current Matching
Ga1-xInxNyAs1-y-zSbz alloy composition resolves current mismatch by delivering 0.9 eV bandgap, enabling 39.2% efficiency under concentrated illumination.
- SiC/Si Composite Material Without Resin Medium
Dispersing SiC powder in molten silicon and recrystallizing eliminates organic resin limitations, enabling thick solid composites with high heat resistance.
- Patterned Substrate for Group III Nitride Epitaxy
A patterned substrate with stress-reducing openings supports epitaxial growth of group III nitride layers.
- Nitride Semiconductor Layer Growth on Segmented Wafer
Segmented wafer regions guide nitride semiconductor layer growth, preventing crack propagation and maintaining surface flatness.
- SiC Crystal Growth via Levitated Seed and Asymmetric Gas Flow
Levitating the silicon carbide seed via thermal gradients prevents mechanical stress and reduces dislocation density during physical vapor transport.
- Structured Substrate for Controlled Crystal Growth
Macro-edges seed crystallization while micro-structures guide growth, eliminating droplet wandering on hydrophobic surfaces.
- CVD Heating Conductor Tensioning for Durability
Angled weight guidance maintains tension on CVD heating conductors, preventing breakage during thermal cycling and enabling over 50 coating cycles.
- Epitaxial Substrate with Superlattice Strain Gradient
A superlattice layer group introduces compressive strain to stabilize the epitaxial substrate.