BJTK Semiconductor Technology Group is committed to the R&D and production of silicon carbide wafers, solving key core technical problems, breaking the international monopoly, and becoming one of the world's leading silicon carbide wafer manufacturers.
Overcome key technologies for more than ten years
The third-generation semiconductor material represented by silicon carbide is one of the most promising semiconductor materials after silicon.
Compared with silicon materials, semiconductor devices manufactured with silicon carbide wafers as substrates have the advantages of high power, high pressure resistance, high temperature resistance, high frequency, low energy consumption, and strong radiation resistance. Among them, silicon carbide power devices made with conductive silicon carbide wafers as substrates can be widely used in modern industrial fields such as new energy vehicles, photovoltaic power generation, rail transit, smart grids, and aerospace.
At the same time, radio frequency devices made of semi-insulating silicon carbide wafers can be used in 5G communications, radar, satellites and other fields. With the maturity of 5G communications applications, the market size of semi-insulating silicon carbide wafers continues to grow. The third-generation semiconductor industry is an important part of my country's new infrastructure and is expected to trigger technological changes and reshape the international semiconductor industry.
"However, the third-generation semiconductor industry has extremely high technology access barriers, and the growth of silicon carbide crystals is extremely difficult. Only a few developed countries have mastered the growth and processing technology of silicon carbide crystals. The localization of silicon carbide crystals will break the foreign monopoly of third-generation semiconductors Vital."
Since 1999, BJTK has cooperated with top scientific research institutions for more than ten years. From basic research to application research, it has broken through key technologies such as growth equipment and high-quality silicon carbide crystal growth and processing. The growth and processing of silicon carbide crystals cover "Equipment Development-Raw Materials" The whole process of synthesis-crystal growth-crystal cutting-wafer processing-cleaning and testing" has formed a complete technical route with independent intellectual property rights, realized the localization and industrialization of silicon carbide crystals, and produced good economic and social benefits. This has contributed to the development of China’s wide band gap semiconductor industry.
At present, the silicon carbide semiconductor industry is in a period of industrial explosion, among which wafers are the core material for the development of the silicon carbide semiconductor industry, which is related to national security and economic and social development.
BJTK is China's first national high-tech enterprise specializing in the R&D, production and sales of third-generation semiconductor silicon carbide wafers. It has successively developed 2-inch, 3-inch, 4-inch conductive and semi-insulating silicon carbide substrates, in 2014 Developed 6-inch silicon carbide wafers for the first time in China in 2009, and the technological level is in a leading position.
In order to promote China's semiconductor key material production technology to achieve independent control as soon as possible, BJTK established an annual production line of 60,000 silicon carbide monocrystalline substrates in BJ at the end of 2015; at the end of 2019, established an annual output of 40,000 silicon carbide monocrystalline substrates in JS Substrate production line to realize the large-scale supply of large-size silicon carbide substrate products; in August 2020, construction of a silicon carbide single crystal production line with an annual output of 120,000 pieces and a total investment of 957 million yuan will be started in DX. The application of power devices and microwave radio frequency devices has laid the foundation.
According to French market research and strategy consulting company Yole Development, the global market share of BJTK's conductive silicon carbide wafers in 2019 was 4.23%, ranking fifth in the world and first in China.