The Localization of Ultra-High-Purity Aluminum and its Alloy Coating Materials Promotes the Development of Tungsten Heater

Due to a high melting point and high corrosion resistance, tungsten heater is widely used in vacuum aluminizing. With the rapid development of electronic information market, high-performance chips, the new display and other electronic devices market has a good development space. The key support of electronics manufacturing is a thin film material, and because of the lower resistivity, and it is easy to deposit, and the mature technology and other excellent characteristics, a thin aluminum film has become core material for integrated circuits, discrete devices, liquid crystal display and other related fields. Compared to developed countries, the time of the development of ultra-high purity aluminum and its alloys evaporation material is relatively late, there is still a certain gap to well-known international companies in process maturity and industry development. Although China is one of the largest countries for reserves of tungsten resources in the world, but due to the immaturity of the technology, tungsten heater cannot satisfy domestic market in vacuum aluminizing. As a result of it, most buyers have to import products from abroad, which would not only time consuming but also a greater cost.

Recently, China News reported that sets of technology system have been established of ultra-high purity aluminum and its alloy coating materials, realizing the development and industrialization of electronic information field the ultra-high purity aluminum evaporation materials, semiconductor of aluminum and its alloy target material and a full range of coating materials. The localization of ultra-high-purity aluminum and its alloy coating materials will accelerate the development of high-end high-purity thin film material, greatly facilitate the improvement of traditional non-ferrous metal industries and industrial extension technology, and prefect the advanced electronic information manufacturing industry and supply chain of accessory products. Vacuum aluminizing has the feature of plastic film and the properties of the metal. The function of vacuum aluminizing is that it can prevent ultraviolet ray, which prolongs quality guarantee period and improves the brightness and perception of film.

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