Purity 99.999999999%! Domestic electronic grade polysilicon no longer rely on imports

The electronic grade polysilicon with a purity requirement of 99.999999999% was finally produced in volume. The reporter learned from Jiangsu Xinhua Semiconductor Material Technology Co., Ltd. on the 6th that a series of rigorous verification tests have been conducted. Recently, a group of ICs were exported to South Korea with high-purity silicon materials. To some domestic wafer processing plants in bulk supply. This marks China's semiconductor integrated circuit silicon material has reached the international first-class quality standards, but also for the first time China's polysilicon manufacturing companies to export high-purity silicon materials for integrated circuits to the international market.

The electronic grade polysilicon material is the key basic material of the integrated circuit. In the past, the polysilicon material for integrated circuits on the Chinese market basically relied on imports. The electronic grade polysilicon is the highest purity polysilicon material. Compared to the solar grade polysilicon 99.9999% purity, the electronic grade polysilicon The purity requirement is 99.999999999%. The total impurity content of 5000 tons of electronic grade polysilicon is equivalent to the weight of a 1 dollar coin.

In December 2015, Xinhua Semiconductor was jointly invested by the National Integrated Circuit Industry Investment Fund and GCL-Poly to build the first 5,000-ton semiconductor integrated circuit-dedicated electronic grade polysilicon production line in China. On November 8th last year, Xinhua Semiconductor, a subsidiary of GCL, became a Released electronic grade polysilicon products.

At present, the electronic-grade polysilicon has been verified by customers and formed large-scale sales, breaking the monopoly of foreign high-purity materials for a long time, and filling the industry's domestic technological gap. Xinhua Semiconductor's first production line has a production capacity of 5,000 tons and can guarantee domestic enterprises. Within 3 to 5 years, electronic grade polysilicon will not be out of stock. The product quality will meet the demand for 40-nm and below VLSI 12-inch single crystal manufacturing. At the same time, another 5,000-ton production line will be planned to better meet international and domestic requirements. market.