IQE InP Capacity Positions UK Wafer Producer for AI Data Centre Demand

IQE

IQE InP capacity gives the UK compound semiconductor wafer producer a stronger position as artificial intelligence infrastructure drives demand for faster optical data transmission. The company says it has enough capacity to ramp output for AI infrastructure, aerospace and defence, and wireless markets in 2026.

IQE InP capacity is becoming more strategically important because indium phosphide supports high-speed photonic products used in data centres. These systems need faster, lower-latency connectivity as AI workloads increase.

IQE InP capacity could also be expanded by converting some gallium arsenide capacity if customer commitments support the move. That flexibility gives IQE a way to respond to demand without large immediate capital spending.

The company expects 2026 revenue to grow by more than 20%, supported by strong demand across core segments and a sharper recovery in photonics.

InP and GaN Demand Strengthens With AI Infrastructure

Indium phosphide demand is rising because AI data centres require ultra-fast optical and wireless communications. High-performance photonics are becoming essential as data movement becomes a bottleneck in AI infrastructure.

IQE produces InP, gallium nitride, gallium arsenide and gallium antimonide wafer products and material systems. The company sees the strongest opportunities in InP and GaN.

The AI buildout helped turn IQE’s business around in the second half of last year. First-half revenue had been pressured by tariff uncertainty, weakness in wireless handsets, customer inventory builds and delays in military and defence funding.

Photonics revenue rose by 15% to £57.1mn in 2025, supported by AI, data centres and the release of funding for some US military and defence programmes.

GaN is also gaining relevance. Demand for GaN power semiconductors is being driven by data centres, aerospace, defence and space applications, where efficiency, power density and heat resistance are critical.

GaAs remains relevant in wireless and sensing markets. IQE’s message is that InP may be leading the current growth cycle, but it sits inside a broader compound semiconductor materials platform.

Supply Security and Customer Commitments Will Decide Expansion

IQE’s capacity position improved after US chipmaker Macom invested in the company last month. The investment allowed IQE to avoid a sale process and retain manufacturing sites in the UK, US and Taiwan.

Each site has its own technology focus and capacity to scale production without major new capital expenditure. But any expansion must be supported by customer engagements, commitments or financing.

That condition matters because compound semiconductor supply chains require long qualification cycles. Customers need reliable wafer quality, secure supply, technical consistency and predictable production before committing to larger volumes.

IQE is also working with suppliers to reduce exposure to shortages in InP materials. The company is looking to dual-source or expand sourcing capabilities so it does not depend on a single supplier.

This highlights a wider materials issue. AI infrastructure is increasing demand not only for chips, but also for specialised semiconductor materials such as indium, gallium, phosphorus and antimony-based systems.

For IQE, the opportunity is clear. If AI, defence and wireless demand remain strong, the company can use its existing asset base to scale higher-value wafer production.

The challenge is execution. IQE must secure firm customer commitments, manage raw material sourcing and convert technical capacity into qualified volume growth.

The Metalnomist Commentary

IQE’s outlook shows that AI infrastructure is pulling compound semiconductors deeper into strategic supply-chain planning. The next bottleneck may not only be chip design, but access to qualified InP, GaN and GaAs wafer capacity.