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Quartz glass is widely used in various processes of semiconductor production
2021-10-29 16:19:32

The formation of quartz glass is caused by the high viscosity of its melt at high temperature. It is widely used in the production of semiconductors, electro-optic sources, semiconducting communication devices, lasers, optical instruments, laboratory instruments, electrical equipment, medical equipment, high-temperature and corrosion-resistant chemical instruments, chemical industry, electronics, metallurgy, building materials, national defense and other industries.

High purity quartz glass can be used to make optical fiber.

With the development of semiconductor technology, quartz glass is widely used in various processes of semiconductor production. For example, Czochralski method converts polycrystalline silicon into monocrystalline silicon; Cleaning tank for cleaning; Diffusion tube and grooved boat for diffusion; Bell jar for ion implantation, etc.

quartz glass

Quartz glass is an amorphous material with a single component of silica. Its microstructure is a simple network composed of tetrahedral structural units of silica. Due to the large Si-O chemical bond energy and tight structure, quartz glass has unique properties, especially the optical properties of transparent quartz glass, It has excellent transmittance in the continuous wavelength range of ultraviolet to infrared radiation.

Quartz glass is made by melting natural crystalline quartz (crystal or pure silica) or synthetic silane at high temperature. The melted products have excellent processing performance. In the extremely high viscosity range, the tubes and rods can be thermally processed like ordinary glass workers, and the abrasive tools made of diamond or silicon carbide can also be used for high-speed machining, so as to make various instruments and special products with complex shapes. The performance of quartz glass mainly depends on its purity, followed by the process or thermal system. The existence of trace impurities will have a significant impact on the service performance of quartz glass; At the same time, due to the slight negligence of the process or thermal system, it will bring a variety of defects to the appearance quality and produce a large number of waste products.


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