Polysilicon
The product quality has achieved international advanced level, and the purity is above 9N.
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Size Specification
>3mm and <200 mm (≥85% by weight inthe range of 25 – 200 mm)
Quality Assurance andPackaging
All parameters are tested for everyproduction lot. We ensure that our products are 100% traceable. Products to be packaged in polyethylene bags in 5KG per bag and 20KG per carton box.
| Parameter | EG First Grade | SG First Grade | SG Second Grade | Test Method |
| N-type/Resistivity(Ω-cm) | ≥500 | ≥100 | ≥40 | 4-Pts |
| phosphorus content | <0.3 | ≤1.5 | ≤3.76 | LT-FTIR |
| P-type/Resistivity(Ω-cm) | ≥3000 | ≥500 | ≥200 | 4-Pts |
| Boron content(ppba) | <0.1 | ≤0.5 | ≤1.3 | LT-FTIR |
| Carbon content(ppba) | ≤0.3 | ≤0.5 | ≤0.8 | FTIR |
| Oxygen content(ppba) | ≤0.06 | ≤0.1 | ≤0.2 | FTIR |
| Surface Metal Content(ppbw) | <10 | <10 | <50 | ICP-MS |