Polycrystalline Material Growth TRIZ Cases

Laser creates a peel-off layer in hexagonal SiC ingots, and ultrasonic waves break this plane to separate wafers, reducing material waste from wire saw cutting.

A cantilever device with a rotatable plate offsets boule weight to extend scale capacity in crystal growth systems.

Pyramidal sapphire substrate projections with 53° to 59° inclined side surfaces suppress crystal defects while enhancing light extraction efficiency.

Stacking titanium, tin, vanadium or molybdenum, and aluminum layers resolves poor ohmic contact quality on high-aluminum-content AlGaN semiconductor surfaces.

A dopant supply unit with controlled heating adjusts sublimation speed, preventing crystal breakage during low-resistivity silicon ingot production.

Offset planes stabilize c-plane facets, suppressing linear defects and polytype heterogeneity in large-diameter SiC crystals.

A low pressure bake removes impurities from semiconductor surfaces using reducing gas, preventing reoxidation during epitaxial deposition.

Local quality coatings reduce oxygen contamination in multicrystalline silicon ingots while maintaining strong adhesion for efficient separation.

Negative voltage operation prevents oxygen degradation of conductive polymer channels, improving electrical reliability and biocompatibility.

Feedback loops adjust CVD parameters to maintain Z1/2 center density uniformity below 5% across large wafers.

Segmented silicon layers prevent material loss during vacuuming, resolving contradictions between charging simplicity and crystal growth reliability.

Selective deposition of mask material on low-growth-rate facets reduces dislocation density while enabling complex structure formation in unmasked regions.

A Dirac semimetal thin film undergoes a phase transition to a Weyl semimetal when its thickness is reduced to 2 nm to 10 nm.

Segmented SiC-graphite layers resist oxidation and carbon dissolution, extending crucible lifespan in photovoltaic silicon melting.

Segmented shielding plates create flow paths that supply source material gas while curbing radiation to generate temperature differences.

Porous silicon particles absorb expansion stress to maintain structural stability and improve capacity retention.

Oxygen pretreatment and controlled concentration in the initial growth step stabilize group III polarity, improving surface smoothness and light transmittance.

A chemical vapor deposition method deposits single-layer transition metal selenide nanoflakes using metal powders as reducing agents.

Patsnap Eureka TRIZ case analyzes a method using preliminary cleaning and differentiated recipes to maintain uniform quality while reducing deposit buildup.

A perovskite oxide thin film detaches from a substrate after dissolving a sacrificial layer grown by molecular beam epitaxy.

Europium doping in GaN layers bends threading dislocations, reducing density below 10^6 cm^-2 on sapphire.

A shielding object made of flux protects additives during heating in group 13 element nitride crystal growth.

Nitrogen gas flowing through a rotational shaft cover prevents evaporated sodium from entering the gap, maintaining continuous rotation and crystal uniformity.

Semi-polar InGaN substrates activate slip planes to relax bi-axial strain, reducing dislocation density and enhancing radiative efficiency.

Controlled oxygen and nitrogen concentrations stabilize octahedral bulk microdefects to enhance nickel gettering efficiency in single-crystal silicon wafers.

Complementary concavo-convex shapes in multilayer SiC members prevent interface visibility on recess bottoms, resolving purity versus appearance trade-offs.

A silicon monocrystal pulling device applies a horizontal magnetic field to restrain convection flow in the melt.

A high-temperature reaction method using iodine transport and potassium iodide molten salt produces large-size two-dimensional layered metal thiophosphate crystals.

Segmented cooling zones control the melt interface profile to minimize edge band defect concentration in silicon ingots.

Mechanical exfoliation transfers graphene sheets from graphite to inorganic carriers, eliminating chemical pollution and high energy consumption.

Controlling the {1-100} face length ratio on the growth surface prevents inclusion formation during large thickness solution growth.

Isotope transmutation alloying converts Si31 to P31 within molten silicon, overcoming phosphorous solubility limits in standard crystal lattices.

Czochralski growth of LYSO:Ce crystals enables simultaneous neutron and gamma ray detection through precise dopant control.

Controlled temperature etching prevents oxide film formation on silicon core wires, reducing in-plane resistivity gradient in large-diameter rods.

Volumetric heating of additive material and adjacent substrate areas to fusion temperature enables epitaxial crystalline structure propagation.

Vertical gradient freeze growth paired with controlled annealing reduces etch pit density below 900/cm2, overcoming conventional defect limits.

Spiked-roll crusher with tungsten carbide phases comminutes silicon rods into cubic chunks while reducing metal contamination below 200 pptw.

Asymmetric cyclic deposition etch epitaxy reduces lattice defects and impurities by segmenting deposition into cycles with selective etching.

A silicon carbide crystal growth apparatus supplies source gas radially outward through a tapered guide structure.

A nickel-based directionally solidified alloy composition excludes cobalt and rhenium while maintaining high-temperature strength.

High energy ball milling creates hexagonal OsB2, resolving orthorhombic instability to achieve 52 GPa hardness and thermal stability.

A SiC volume monocrystal post-treatment process establishes a radial thermal gradient via free heat radiation to mobilize dislocations.

Bonding a GaN layer to a thermal-matched metallic plate reduces residual stress and prevents cracking during ammonothermal growth.

Conical sapphire projections guide hierarchical AlN growth, reducing dislocation density and improving crystallinity for ultraviolet light-emitting diodes.

Hybrid siloxane adhesive improves water vapor breakthrough times while maintaining flexibility and adhesion for electronic encapsulation.

Low-friction guide elements align wafer lifting pins through susceptor holes to minimize particle generation during epitaxial processing.

Vacuum thermal treatment removes metal impurities from graphite crucibles, eliminating toxic chemical usage and reducing production costs.

(220) plane oriented tantalum carbide coating on carbon substrate prevents cracks and delamination during semiconductor epitaxial growth.

Elongated gamma prime particles with controlled aspect ratios resist rafting and reduce crack growth while maintaining high structural strength.

Metal masks block dislocation propagation during ammonothermal growth, reducing density below natural annihilation limits.