Classification Of Silicon Wafers

1. Monocrystalline silicon
Monocrystalline silicon, also known as CZ monocrystalline silicon, is a high-purity silicon material, usually used to manufacture semiconductor devices. The production process of monocrystalline silicon is relatively complicated and needs to be prepared by the Czochralski method or the floating zone method. The crystal structure of this silicon wafer is very orderly, which can ensure the stable performance of the device. Due to its excellent conductivity and good electrostatic properties, it is widely used in the electronics industry, such as manufacturing chips, photovoltaic cells and solar cells.
2. Polycrystalline silicon
Polycrystalline silicon is a low-purity, loosely crystallized silicon material, mainly used in the solar cell industry. The production process of this silicon wafer is relatively simple, and it can be prepared by the direct pulling method or the sheet crystallization method. Polycrystalline silicon is characterized by low cost and high production efficiency, so it is widely used in the field of solar cells.
3. Czochralski silicon
Czochralski silicon, also known as CZ silicon, is a high-purity monocrystalline silicon material prepared by the Czochralski method. Its production process is relatively complicated and requires high temperature and high pressure environment, which can produce very high-quality silicon crystals. Cz silicon has the characteristics of complete crystal structure and stable electrical properties, and is widely used in electronics, photovoltaics and other fields.