Four major application areas of quartz glass products


The main component of quartz glass is silica. It has excellent properties such as high light transmittance, high temperature resistance, low expansion coefficient, strong chemical stability, high purity, and strong electrical insulation. Quartz glass products are an important part of the modern information industry, optics, photovoltaics, etc. , semiconductor emerging industries and aerospace and other defense fields are indispensable and important basic materials in the development.

Semiconductor field

The semiconductor field is the largest application field of quartz products. Quartz glass has high purity and good chemical stability. It is an irreplaceable and ideal supporting auxiliary material in the manufacturing process of semiconductor integrated circuits.

With the development of the semiconductor industry, its performance requirements for quartz glass have gradually increased. The deposition process requires high purity. In the semiconductor process, the size of transistors is gradually reduced, requiring lower impurity content in quartz products; the etching process requires low bubbles: the key to improving the efficiency of the etching process is to control the level of particulate matter, and the bubbles in quartz vessels It will promote the generation of particles, so the development of low-bubble quartz products has become a trend; the photolithography process requires high deep ultraviolet light transmittance and low absorption rate: under the trend of continued miniaturization of integrated circuits, synthetic quartz can meet this demand.


Photovoltaic field

In the photovoltaic manufacturing process, quartz crucibles and other quartz products are important consumables for the production of photovoltaic monocrystalline silicon and polycrystalline silicon. For example, quartz crucibles are used to contain molten silicon in the production of silicon rods and silicon ingots; quartz boats, tubes, bottles, cleaning Grooves, etc. play a load-bearing function in the diffusion, cleaning and other process steps during the production process of battery cells.


Optical fiber communication field

With the development of electronic information technology, higher requirements have been put forward for communication. Compared with other communication types, quartz optical fiber has the advantages of longer transmission distance, faster speed, lower signal loss rate, and is not affected by electromagnetic signals. It can meet the needs of information sending and receiving better and faster.
In the field of optical fiber communications, quartz glass materials are mainly used to produce optical fiber preforms, support materials for preform production, and support materials for optical fiber drawing. More than 95% of the components in the optical fiber preform are high-purity quartz products. Quartz products are also used in the production processes of optical fiber preforms and optical fiber drawing, including head tubes and tail tubes in MCVD and PCVD processes, holding rods and quartz glass sintered tubes used in OVD and VAD processes, and handles used in the preform drawing process. Rods, handle tubes, quartz cups, etc.


Optics and light source fields

Optical quartz glass has the characteristics of high temperature resistance, corrosion resistance, and low expansion rate, and is widely used in the optical field. High-purity quartz glass is used in the production of telescope lenses and laboratory optical equipment, communication equipment, diffractive lenses, projection displays, scanning equipment and Optics, lasers for printers, as well as cameras and ultra-flat TV screens, flame control equipment, etc. Electric light source products produced from high-purity quartz glass include high-pressure mercury lamps, metal halide lamps, tungsten halogen lamps, xenon lamps, automobile lamps, etc., which can withstand high temperatures and provide high transmission characteristics.
With the advancement of electric light source technology and the continuous expansion of production scale, it will have a greater impact on the market of quartz glass for electric light sources. In the future, the demand for quartz glass for electric light sources will remain basically stable.

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