Engineering sustainable deep-tech with Green Silicon For Chips.
Developing advanced, low-carbon circular refining infrastructure to synthesize ultra-high purity Green Silicon with verified 9N purity (99.9999999%) for advanced semiconductor chips, microelectronics, and clean technology.
Why Green Silicon out-engineers mined quartz smelting.
Conventional electronic silicon relies on carbon-heavy coal smelting of mined quartz at 1900°C followed by toxic chlorosilane distillation. Rivanta transforms sustainable agricultural residues into ultra-pure 9N silicon with zero coal usage and an audited 65% reduction in cradle-to-gate carbon emissions.
| Technical Metric | Rivanta Green Silicon (9N) | Conventional Mined Silicon | Engineered Advantage |
|---|---|---|---|
| Feedstock & Extraction Origin | Sustainable Circular Precursor (Renewable Biogenic Residue) | Mined Quartz Sand & Coal/Coke Smelting (Fossil Minerals) | 100% Fossil-Free Circular Origin |
| Thermal Synthesis Threshold | <900°C Low-Emission Induction & Catalytic Reduction | >1900°C Carbon-Intensive Submerged Electric Arc Smelting | >55% Process Thermal Energy Savings |
| Silicon Purity Grade | 9N Purity (99.9999999% Electronic-Grade Silicon EG-Si) | Standard Metallurgical Grade (MG-Si 98-99%) before chlorosilanes | Direct Electronic 9N Purity |
| Embodied Carbon Footprint | -65% Cradle-to-Gate CO2e (Displaces fossil carbon reductants) | Extreme Scope 1 & 2 emissions from coal and petroleum coke | -65% Scope 3 Carbon Displacement |
| Hazardous Chemical Refining | Closed-loop hydrometallurgical purification (Zero toxic chlorosilanes) | Hazardous trichlorosilane (TCS) and toxic SiCl4 distillation | Non-Toxic Closed Loop Process |
| Trace Critical Impurities (B, P) | <0.1 ppb Boron & Phosphorus (Semiconductor Grade) | High trace boron and phosphorus requiring multiple chemical passes | Sub-ppb Precision Specification |
Calibrated specifications for semiconductor foundries.
Ultra-pure 9N silicon for microprocessors, logic devices, and AI accelerators.
Engineered specifically for semiconductor wafer foundries. Our 9N purity (99.9999999%) Green Silicon For Chips meets the stringent requirements for Czochralski (CZ) crystal pulling, epitaxial wafer growth, and microelectronic chip fabrication with minimal crystal lattice defect densities.
- Silicon Purity: ≥ 99.9999999% (9N Purity)
- Boron (B) Impurity: ≤ 0.1 ppb
- Phosphorus (P) Impurity: ≤ 0.1 ppb
- Total Carbon & Oxygen: ≤ 0.5 ppma