Soitec and NTU Singapore Reporting Results of Research Program Into 6G Connectivity

Why It Matters

The technology promises more compact, energy‑efficient 6G devices and infrastructure, accelerating the global GaN ecosystem and reducing handset costs.

Key Takeaways

• GaN‑on‑silicon achieves >50% PAE at FR3 frequencies
• Record efficiency supports compact 6G smartphone RF front‑ends
• GaN substrates offer better thermal management than GaAs
• Scalable silicon platform reduces cost for 6G infrastructure
• Four‑year Soitec/NTU program yields three technical papers

Pulse Analysis

The Soitec‑NTU partnership underscores a pivotal shift in semiconductor strategy as the industry eyes 6G. By leveraging GaN‑on‑silicon epitaxial substrates, researchers have bridged the performance gap between high‑frequency gallium‑arsenide and the cost‑effective silicon ecosystem. This hybrid approach delivers unprecedented power‑added efficiency, a critical metric for battery‑driven mobile devices that must operate at millimeter‑wave frequencies without overheating. The research’s emphasis on low‑voltage operation aligns with smartphone designers’ push for slimmer form factors and longer battery life.

Beyond handset implications, the breakthrough has far‑reaching consequences for network infrastructure. Base stations for 6G will demand higher output power and tighter thermal budgets, challenges that GaN‑on‑silicon can address through superior heat dissipation and scalable manufacturing. The ability to produce large‑area wafers on silicon substrates lowers capital expenditures, enabling telecom operators to roll out dense 6G networks more economically. Moreover, the demonstrated PAE levels above 50 % signal a reduction in overall energy consumption, supporting sustainability goals for next‑generation wireless ecosystems.

From a market perspective, the results accelerate the maturation of the global GaN supply chain, positioning Soitec as a key enabler for both consumer and infrastructure segments. As device makers adopt GaN‑on‑silicon for RF front‑ends, they can expect simplified module integration, reduced component counts, and faster time‑to‑market. This convergence of performance, cost, and scalability is likely to spur competitive dynamics, prompting rivals to invest in similar substrate technologies. Ultimately, the Soitec‑NTU findings not only validate the technical feasibility of 6G but also chart a clear commercial pathway for its widespread adoption.