Key Specifications
| Element | Content (%) |
|---|---|
| Silicon (Si) | ≥99.5 |
| Iron (Fe) | ≤0.2 |
| Aluminum (Al) | ≤0.2 |
| Calcium (Ca) | ≤0.02 |
| Other Impurities | ≤0.03 (combined) |
Premium Applications
(1) Semiconductor & Microelectronics
Primary feedstock for electronic-grade polysilicon (9N-11N purity)
Essential for 300mm+ monocrystalline silicon wafers
Used in advanced logic chips (3nm and below) and memory devices
(2) Next-Generation Photovoltaics
Critical for TOPCon, HJT, and perovskite tandem solar cells (>26% efficiency)
Minimizes recombination losses in ultra-thin wafers (≤100μm)
Preferred material for space-grade solar panels
(3) Aerospace & Defense Alloys
Used in titanium-silicon alloys for jet engine components
Enhances strength-to-weight ratio in structural aerospace materials
Critical for hypersonic vehicle thermal protection systems
(4) Quantum & Emerging Technologies
Base material for silicon spin qubits in quantum computing
Used in photonics and silicon-based MEMS devices
Precursor for 2D silicon nanomaterials
Manufacturing Excellence
Produced via zone refining and vacuum arc remelting
Quadruple purification process including:
Acid leaching
Electron beam refining
Directional crystallization
Plasma purification
PPB-level impurity control with GD-MS analysis.
Market Position
Global Production Capacity: <10,000 MT/year
Price Premium: 2-3× standard metallurgical silicon
Key Consumers:
Leading semiconductor foundries
Space-grade solar manufacturers
Defense material suppliers
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