Polycrystalline Material Growth TRIZ Cases

Convex SiC growth surfaces and tuned thermal profiles enable larger wafers with lower crystallographic stress and dislocation density.

Reductive calcination and magnetic separation simplify lithium battery cathode recycling, cutting extraction steps, waste, and energy use.

Asymmetric wetting wells confine perovskite precursor solution to control nanocrystal size and position for lithography-compatible LED arrays.

A C-containing barrier and steep Fe gradient keep Fe out of the 2DEG region, preserving GaN-HEMT mobility and semi-insulating behavior.

Pattern AlN by growing disordered and columnar crystal regions, enabling consistent wet etching without costly dry etch tools.

A diamond layer and silicon oxide film on a textured support substrate improve RF heat dissipation and insulation while limiting harmonic interference.

Repeated sacrificial-layer etching removes dopant memory effects in epitaxial layers, protecting channel mobility and device performance.

An uneven 1-200 μm SiC joint interface boosts interlayer strength to resist delamination, breaking, and cracking during grinding and polishing.

Using plasma CVD and a lattice-matched hexagonal catalytic metal, this case grows monocrystalline h-BN below 800°C with fewer defects.

Controlled dopant levels in high-purity silicon cut halogen plasma etch rates without precipitate formation, extending chamber component life.

A mixed layered cathode and multi-coating core-shell material suppresses manganese dissolution while improving lithium-ion transport and cycle life.

HVPE regrowth smooths rough reused III-V substrates, avoiding costly CMP while improving throughput and surface quality.

Reduced-pressure CVD with hydrogen baking and controlled SiC nucleation grows high-quality 3C-SiC films on silicon with fewer defects.

A protective layer on one wafer side controls HCl etching and deposition to reduce edge drop, quadruple symmetry, and thickness variation.

Selective diamond seeding and GaN overgrowth create direct GaN-diamond contact, removing thermal resistance and graphitic carbon.

Layered vapor-phase growth uses 3D and flattening layers to cut dislocation density and improve nitride substrate crystal quality.

Pre-irradiating a 4H silicon carbide epitaxial layer with UV light stabilizes basal plane dislocations and helps protect device yield and reliability.

An intermediate Ir or MgO layer enables large-area single-crystal diamond growth with lower stress and fewer defects on Si or sapphire substrates.

Inclined strip-mask growth regions reduce stress concentration, helping lattice-mismatched semiconductor layers avoid cracks and defects.

Pillared layered cathodes raise zinc battery voltage while reversibly intercalating solvated zinc ions for better capacity and cycle stability.

Reaction-sintered SiC layers replace costly substrate bonding, reducing warping while preserving structural integrity and oxidation resistance.

Mn doping raises carrier activation energy in GaN substrates, preserving semi-insulating resistivity and crystal quality at high temperatures.

M-N co-doping and oxygen-controlled deposition improve nitrogen solubility and acceptor stability in p-type gallium oxide films.

A steep Mn concentration gradient and C-containing buffer layer block Mn diffusion into the 2DEG while keeping GaN-HEMT buffers thin.

High-fluence pulsed laser irradiation forms vacancy defects in diamond to raise NV center concentration without graphitization, improving quantum sensor yield.

Setting the c-plane GaN substrate off-angle to 0.4° or more suppresses E3 trap levels and variation in the epitaxial GaN layer.

A corundum-type orientation layer tunes lattice constants beyond sapphire to cut heteroepitaxial defects and improve breakdown performance.

Single-crystal MgGeO epitaxial layers extend deep-UV capability while supporting higher breakdown voltage and faster, lower-loss switching.

Controlled precursor switching between SiGe:B and Si:B deposition stabilizes boron incorporation and prevents interface slip defects.

Electron beam treatment of nitrogen-doped silicon keeps substrate resistivity high during epitaxial growth, reducing harmonic losses.

An oxidized AlN intermediate layer on Si(111) suppresses melt-back etching and enables highly crystalline, high-Ga-polarity GaN films.

A 0.4°-1.0° substrate off-angle helps thin-channel nitride HEMT laminates cut parasitic capacitance without losing carrier density or mobility.

Growing a doped epitaxial layer under SiC vapor equilibrium raises and evens dopant activation, reducing on-resistance and threshold variation.

A thin SiC buffer layer between Al2O3 and GaN cuts lattice mismatch and dislocations, improving LED crystal quality and light output.

Controlling the vanadium-to-nitrogen ratio during SiC crystal growth improves resistivity uniformity and keeps over 85% of wafer area above 10^12 Ω·cm.

Laser-written modification lines guide subcritical cracks in inclined crystal planes to separate wafers with lower kerf loss and smoother surfaces.

Two-stage sintering and doping stabilize high-nickel single-crystal cathodes, reducing agglomeration and phase-change risks while improving cycle life.

Tight off-angle control across an α-Ga2O3 film reduces dielectric breakdown variation and improves power device yield.

In-situ pre-growth treatment forms a graded buffer layer in HVPE heteroepitaxy, reducing strain and cracking in thick semiconductor layers.

Successive low-temperature SiC deposition and crystallization enable thin monocrystalline SiC transfer with lower defects, blistering, and bonding complexity.