Silicon is the key material for IC manufacturing. Before 2017, 100% of high-end electronic grade polysilicon was imported. More than 60% of silicon wafers rely on imports, 90% of 8 inch wafers rely on imports, and 12 inches of silicon. The film is 100% dependent on imports. To solve the problem of localization of integrated circuit manufacturing, we must solve the problem of localization of large silicon wafers. To solve the problem of localization of large wafers, we must solve the problem of localization of electronic grade polysilicon, otherwise the source Still rely on imports.
On December 11, 2015, Xinhua Semiconductor, which was jointly invested by the National Integrated Circuit Industry Investment Fund (Large Fund) and GCL-Poly, announced the start of construction in Jiangsu Xuzhou Economic and Technological Development Zone. It was built in China for R&D, production and Sales of semiconductor-grade polysilicon and other semiconductor raw materials and electrochemical product production facilities, to build China's first 5,000 tons of semiconductor integrated circuit electronic grade polysilicon production line. On November 8, 2017, Xinhua Semiconductor officially released electronic grade polysilicon products. Xinhua Semiconductor The independent production of electronic-grade polysilicon marks the breakthrough of China's electronic-grade polysilicon breaking through overseas years of technical blockade and fills a gap in the national integrated circuit industry. Since 2018, Xinhua Semiconductor's electronic-grade polysilicon products have formed mass sales in the domestic market, and gradually Provide small quantities of products for overseas sales.
As far as electronic grade polysilicon is concerned, Xinhua Semiconductor's R&D team has undergone 317 electronic grade polysilicon production trials. With more than one year's time, it has optimized and improved 629 technologies and equipment, and 70% of domestic equipment has systematically solved the problem of impurity release. , Achieve complete removal and control of impurities on the raw material side, and the world's first use of automated contactless silicon material processing system. Currently, Xinhua Semiconductor is applying for national patents on related technologies and processes.
In the future, as the domestically-made supporting materials and equipment will continue to increase, the refined operation level will also continue to increase. Xinhua Semiconductor plans to put on a 5,000-ton production line to better meet the international and domestic markets. In addition, to further enhance the domestic integrated circuit With the localization rate of material manufacturing, with the support of the state and cooperation with related parties, GCL will lay out semiconductor equipment manufacturing and large silicon wafer production in China. Through the introduction of foreign advanced technology and independent research and development, the realization of domestic semiconductor crystal growth equipment Through three to five years of hard work, we have achieved 12-inch, 8-inch and lower series production lines, with a total silicon wafer production capacity of 2 million pieces/month or more. We have increased the production capacity of large wafers to the top three in the world, and are internationally competitive. GCL will further give full play to its strengths in the field of silicon-based electronic chemicals. Currently, GCL has 1,000 t/y of high-purity silane gas production capacity. Its product quality has reached the electronic level and meets semiconductor production requirements. GCL will also continue Develop other silicon-based electronic chemicals to further improve the domestic semiconductor material supply chain.