China has successfully developed 6-inch silicon carbide wafers with an annual output of 70,000 pieces

From 2 inches, 3 inches, 4 inches to today's 6 inches of silicon carbide single crystal substrate, Chen Xiaolong team spent more than 10 years to take the lead in realizing the independent research and development and industrialization of silicon carbide single crystal substrate in China. According to the "Chinese Science Journal" reported on the 12th, not long ago, the research team of Chen Xiaolong, a researcher at the Institute of Physics of the Chinese Academy of Sciences, cooperated with Beijing Tianke Heda Blue Ray Semiconductor Co., LTD. (hereinafter referred to as Tianke Heda) to solve the 6-inch diameter expansion technology and chip processing technology, and successfully developed a 6-inch silicon carbide single crystal substrate. As of March 2014, Tianke Heda has formed a production line with an annual output of 70,000 silicon carbide wafers.

As a third-generation semiconductor material, silicon carbide can be used to make a new generation of energy-efficient power electronic devices, and is widely used in various fields of the national economy, such as air conditioning, photovoltaic power generation, wind power generation, high-efficiency motors, hybrid and pure electric vehicles, high-speed trains, smart grids, ultra-high voltage power transmission and transformation. Compared with the use of traditional silicon devices, the use of silicon carbide semiconductor power electronic devices can greatly reduce the energy loss of the power system, improve the efficiency of power use, reduce the size of the power system, and improve the reliability of the system operation and reduce the cost of the system. The popularization and application of high-efficiency and energy-saving silicon carbide power electronic devices can provide technical support for industrial upgrading, energy saving and emission reduction and the construction of a low-carbon society.

According to reports, the United States F-22 fighter jet also uses a large number of silicon carbide semiconductor devices. China's silicon carbide technology was also used in the military earlier, and is now slowly expanding to civilian aspects, once popularized, it will create huge social benefits.