Silicon metal powder
Pure Silicon Powder for Semiconductor
Pure silicon powder is an important material used in the semiconductor industry. It is a key component in the manufacture of electronic devices, such as microchips, transistors, and solar cells. ...
DESCRIPTION
Pure silicon powder is an important material used in the semiconductor industry. It is a key component in the manufacture of electronic devices, such as microchips, transistors, and solar cells.
The production of pure silicon powder involves several steps. First, silica is extracted from sand or quartz using a chemical process. Then, the silica is reduced with carbon at high temperatures to produce silicon metal. The silicon metal is then ground into a fine powder using a ball mill or other similar equipment.
The purity of the silicon powder is critical to its performance in semiconductor applications. The powder must be free from impurities, such as oxygen, carbon, and other metals, which can affect its electrical properties. The purity of the silicon powder is typically expressed as a percentage of the total impurities present, with higher purity materials being more expensive.
| Application | Grade | Particle size | Purity |
|---|---|---|---|
| Semiconductors | Electronic grade | 1-5 microns | 99.999% |
| Solar cells | Solar grade | 1-10 microns | 99.999% |
| Steel production | Metallurgical grade | 0.5-10 mm | 98-99.5% |
| Refractories | Metallurgical grade | 0.5-10 mm | 98-99.5% |
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