CETC GaN Chips Push GaN-on-Silicon RF Technology Into Commercial Scale

CETC

CETC GaN chips have reached a major commercial milestone after China Electronics Technology Group delivered more than 5mn silicon-based gallium nitride radio-frequency chips for smart terminals. The state-owned manufacturer described the product as the first commercially mass-produced GaN-on-silicon RF chip for this application.

CETC GaN chips are strategically important because GaN combines strong high-frequency and high-power performance with the cost advantages of silicon substrates. This could accelerate adoption in next-generation communications equipment where performance and scale are both critical.

CETC GaN chips are expected to support integrated space-air-ground communications networks used across 6G, commercial aerospace, low-altitude aviation and emergency communications.

The development also strengthens the long-term demand outlook for gallium. Wider GaN deployment will require more high-purity gallium and more advanced downstream processing capacity.

6G and Aerospace Expand the Market for GaN RF Chips

RF power amplifiers are critical components in modern communications systems because they influence transmission range, signal quality and data throughput.

GaN technology is well suited to these applications because it can operate efficiently at higher frequencies and power levels than conventional semiconductor materials.

That makes GaN increasingly relevant to 6G networks, satellite communications, aerospace systems, radar and low-altitude aviation platforms.

China’s rapid expansion in commercial aerospace, information communications and the low-altitude economy is creating a larger domestic market for high-performance RF chips.

Mass production is therefore as important as technical capability. Delivering more than 5mn units shows that GaN-on-silicon is moving from specialised applications toward broader commercial deployment.

This shift could lower unit costs and make GaN-based systems more practical for large-scale communications infrastructure.

Gallium Moves Deeper Into Strategic Semiconductor Supply Chains

The expansion of GaN production has direct implications for gallium demand. Semiconductor-grade GaN requires highly refined gallium with strict purity and processing standards.

As chip output rises, demand will increasingly shift from basic gallium metal toward higher-value materials suitable for epitaxy, wafers and semiconductor fabrication.

China already dominates global gallium supply and has included the metal in its dual-use export control regime since 2023.

That gives domestic GaN expansion wider strategic importance. More gallium may be consumed inside China as semiconductor demand grows, increasing pressure on overseas buyers to diversify supply.

The development also raises the value of downstream refining and processing. Future competition will depend not only on access to gallium, but on the ability to convert it into qualified semiconductor materials.

For global markets, this means gallium is becoming increasingly tied to communications, aerospace and defence technology rather than remaining a small-volume specialty metal.

The Metalnomist Commentary

CETC’s mass delivery shows that GaN is moving decisively from niche applications into commercial-scale communications. The strategic bottleneck is likely to shift upstream toward high-purity gallium and qualified semiconductor materials as 6G and aerospace demand expands.