China has embarked on a significant step toward the development of sixth-generation communication networks by initiating large-scale production of radio frequency chips made from gallium nitride (GaN). This advanced material is preferable to silicon due to its higher power output, broader frequency ranges, and smaller size. According to local sources, the production of 5 million such semiconductors for intelligent terminals has already begun. The chips are developed by the 55th Institute of China Electronics Technology Group Corporation and its subsidiary, Nanjing Guobo Electronics. This marks a historic occasion as it is the first instance of mass production and commercial application of GaN-based radio chips in communication devices.
The gallium nitride chips serve as power amplifiers within the terminals, offering high power efficiency, wide bandwidth, and reliability—qualities that are essential for communication with low-earth orbit satellites, aerial platforms, ground relay stations, and standard user terminals. The range of applications for these chips includes satellite communication, low-altitude platform terminals, data transmission modules, ground gateways, and intelligent terminals.
Notably, the production of GaN semiconductors is being accomplished on standard silicon substrates, which significantly reduces costs. This achievement has been years in the making, as researchers have successfully replicated the entire production chain, from epitaxial growth of the material to chip design, technological validation, reliability testing, and scaling up for mass production. Experts are confident that supply will meet demand as the infrastructure transitions to 6G technology.
Over recent years, gallium has emerged as a strategic material in the technological rivalry among leading and developing nations, with China controlling nearly the entire global supply of gallium. Since late 2024, a ban has been enforced on gallium exports to the United States for dual-use goods. Therefore, China's mass production of its own GaN chips not only highlights advancements in radio frequency electronics but also underscores the country's aim to secure critical supply chains for satellite communication, 6G, and future comprehensive network infrastructure.
This development positions China favorably in the competitive landscape of next-generation communication technologies, potentially giving it a leading edge in the global 6G market.
Informational material. 18+.
