Polycrystalline silicon, or multicrystalline silicon, also called polysilicon, poly-Si, or mc-Si, is a high purity, polycrystalline form of silicon, used as a raw material by the solar photovoltaic and electronics industry. Polysilicon is produced from metallurgical grade silicon by a chemical purification process, called the Siemens process. This process involves distillation of volatile silicon. Vs monocrystalline siliconIn single-crystal silicon, also known as, the crystalline framework is homogeneous, which can be recognized by an even external colouring. The entire sample is one single, continuous and unbrok. . At the component level, polysilicon has long been used as the conducting gate material in and processing technologies. For these technologies, it is deposited using low-pressure chemical-vapour dep. . Polysilicon deposition, or the process of depositing a layer of polycrystalline silicon on a semiconductor wafer, is achieved by the of (SiH4) at high temperatures of 580 to 650 °C. This process.
[PDF Version]
