What Is The Polysilicon Processing Process?
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What is the polysilicon processing process?
Polysilicon Processing is a process in which polysilicon material is processed and manufactured, usually for use in areas such as solar panels and integrated circuits. The following will introduce the specific steps and processes of polysilicon processing technology.
Preparation of polysilicon materials: first of all, you need to prepare polysilicon raw materials, commonly including silicon wafers and silicon rods. These raw materials need to be precisely processed and treated to ensure the purity and quality of the materials.
Cutting and Separation: Polysilicon materials are usually in large pieces and need to be cut and separated according to product requirements. Commonly used methods include drill cutting, wire saw cutting and slicer cutting. These methods can cut large pieces of polysilicon material into the required size and shape.
Finishing and polishing: The cut polysilicon wafers need to be finished and polished to remove rough surfaces and defects left by the cutting. This process requires the use of techniques such as chemical mechanical polishing (CMP) and chemical etching to achieve precise surface finish and flatness.
Contact Preparation: Contact preparation is the chemical treatment of polysilicon wafers to create positive and negative charge distributions and form PN junctions. This process includes steps such as doping, diffusion and deposition. Commonly used methods include diffusion and chemical vapor deposition (CVD).
Photolithography and etching: Circuit patterns and structures need to be prepared on polysilicon wafers, which requires the use of photolithography and etching techniques. Photolithography involves covering the surface of a polysilicon wafer with photoresist, which is then exposed, developed and dried to form the desired pattern. Etching, on the other hand, removes the exposed portion to form the desired structure.
Metallization: The final step is to metallize the polysilicon wafers to form electrodes and connectors. This involves the use of methods such as metal deposition and evaporation to form a conductive metal layer on the surface of the polysilicon wafer.
Overall, the polysilicon processing process can prepare polysilicon products of various shapes and structures after the above steps and processes, which are widely used in the fields of electronics, photovoltaics and semiconductors. At the same time, with the continuous development and innovation of technology, polysilicon processing process is also constantly optimized and improved, providing more possibilities for industrial development and product upgrading.
What is the price of polysilicon today?
| Overseas component prices on August 1 | ||||||
| name | Lowest Price | Highest Price | Average price | Rise and fall | unit | Remark |
| Monocrystalline PERC Bifacial Module - 182/210mm - USA | 0.22 | 0.26 | 0.24 | -- | US$/Watt | -- |
| Topcon Module-182/210mm-USA | 0.2 | 0.3 | 0.25 | -- | US$/Watt | -- |
| Monocrystalline PERC Bifacial Module - 182/210mm - Europe | 0.07 | 0.16 | 0.08 | -- | US$/Watt | -- |
| Topcon Module-182/210mm-Europe | 0.09 | 0.1 | 0.09 | -- | US$/Watt | -- |
How much does polysilicon cost?
| Overseas polysilicon prices on August 1 | ||||||
| name | Lowest Price | Highest Price | Average price | Rise and fall | unit | Remark |
| Overseas photovoltaic polysilicon | 16 | 20 | 18 | -- | US dollars/kg | |
What is the price of polysilicon per kg?
| August 1st China's guiding price for solar-grade polysilicon | |||||
| name | Lowest Price | Highest Price | Average price | Rise and fall | unit |
| N type dense material | 45 | 50 | 47.5 | -- | Yuan/kg |
| N type mixed bag material | 43 | 48 | 45.5 | -- | Yuan/kg |
| N-type granular silicon | 44 | 45 | 44.5 | -- | Yuan/kg |
| P-type re-feeding | 33 | 34 | 33.5 | -- | Yuan/kg |
| P type dense material | 31 | 32 | 31.5 | -- | Yuan/kg |
| P-type cauliflower material | 29 | 30 | 29.5 | -- | Yuan/kg |
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