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Development Trend Of Monocrystalline Silicon Wafer
- Mar 12, 2018 -

The greater the diameter of the wafer, the higher the technical requirements, the more market prospects, the higher the value. Japan, the United States and Germany are major producers of silicon material. The national Silicon material industry and Japan started at the same time, but overall, the production level is still relatively low, and most of the 2.5, 3, 4, 5-inch silicon ingots and small diameter silicon. Most of the integrated circuits and silicon chips consumed by the state are still dependent on imports. However, China's scientific and technological personnel are catching up, in 1998 successfully produced a 12-inch monocrystalline silicon, marking the production of monocrystalline silicon in China has entered a new period of development. At present, the world's monocrystalline silicon production capacity of 10,000 tons/year, the annual consumption of about 6000 tons ~7000 tons. In the next few years, the development of monocrystalline silicon materials in the world will present the following trends:

The trend of large diameter is obvious

With the development of semiconductor materials technology, the specifications and quality of the wafer also put forward higher requirements, suitable for micro-processing of large diameter silicon wafer in the market demand proportion will be increasing. At present, the silicon wafer mainstream product is 200mm, gradually to 300mm transition, the development level achieves 400mm~450mm. According to statistics, the global consumption of 200mm wafer accounted for about 60%, 150mm accounted for about 20%, the rest accounted for about 20%. Gartner's 5-year forecast for wafer demand suggests that global 300mm wafers will increase from 1.3% in 2000 to 21.1% in 2006. Japan, the United States, South Korea and other countries have begun to gradually expand the 300mm wafer production in 1999. According to incomplete statistics, the global currently built, under construction and planned 300mm silicon device production lines of about 40, mainly distributed in the United States and Taiwan, China, Taiwan alone has more than 20 production lines, followed by Japan, Korea, new and European. %P

A survey by the World Association of Semiconductor Equipment and materials (SEMI) shows that in 2004 and 2005, the proportion of investment in 300mm production lines will be 55% and 62% per cent in all wafer manufacturing equipment, with investment reaching 13.03 billion US dollars and 18.41 billion dollars respectively, with a very rapid development. In 1996, however, this proportion was only zero.