Nokia acquires NXP's Arizona factory to build indium phosphide optical chip production line

On August 5, local time, Nokia officially announced the signing of a definitive agreement to acquire NXP's semiconductor factory in Chandler, Arizona, USA, and plans to convert the facility into a dedicated production line for Indium Phosphide (InP) compound semiconductors, strengthening its in-house manufacturing capabilities for optical communication components.

This transaction adopts a phased implementation model of "lease first, close later." Nokia will lease part of the facility starting in early 2027 to kickstart mass production of Indium Phosphide chips ahead of schedule; the formal closing of the acquisition for all equity in the factory is expected to be completed in the first quarter of 2029, and the finalization of the deal is still subject to relevant regulatory approval processes.

Nokia CEO Justin Hotard stated that due to industry supply constraints, the shortage of optical chip capacity has become a practical challenge restricting industry delivery. Acquiring this factory serves, on one hand, to secure a stable chip supply for its own optical network equipment, and on the other hand, to preserve more supply chain options for downstream customers in an environment of constrained global capacity. For a communication equipment enterprise to directly acquire a wafer fab to establish its own compound semiconductor production line is a relatively rare operation in the global industry, highlighting the strategic value of upstream optical chips to equipment vendors.

Why Indium Phosphide: AI computing power drives a severe imbalance between supply and demand for optical chips

Indium Phosphide belongs to the III-V group of compound semiconductors. Unlike silicon chips responsible for computing and storage, Indium Phosphide can perform bidirectional conversion between electrical signals and optical signals. It is the core underlying material for 800G and 1.6T high-speed optical modules and optical transceivers, supporting large-scale high-speed interconnectivity within AI data centers.

With the rapid expansion of large model computing clusters and the explosive growth of data traffic, the demand for optical interconnectivity far exceeds existing production capacity. Industry data shows that current market demand for optical transceivers has already reached more than twice the existing supply of Indium Phosphide, with a severe shortage of effective global capacity and tight order schedules. Tech giants, including NVIDIA, are competing for Indium Phosphide optical chip capacity through investment and long-term agreements to lock in volume, making upstream chip supply a key bottleneck for the entire AI network infrastructure.

Nokia's Strategic Layout: Completing the internal manufacturing chain and reducing external supply chain dependency

In recent years, Nokia has continuously increased its investment in in-house optical chip manufacturing capabilities. Previously, the company completed the acquisition of optical communication vendor Infinera, obtaining Indium Phosphide wafer manufacturing capabilities in California, while also expanding optical device packaging production lines in Pennsylvania, planning to increase packaging capacity tenfold.

Securing the Chandler factory this time will further expand native Indium Phosphide wafer capacity in North America, forming a multi-factory collaborative manufacturing pattern. In the past, Nokia relied heavily on external procurement for optical chips and was significantly influenced by the capacity allocation of upstream vendors; once the self-owned production line is built and operational, it will greatly reduce dependence on externally purchased optical chips, guarantee the delivery pace of optical transmission and data center interconnect equipment, and support the company's transformation from a traditional telecom equipment vendor to an AI data center infrastructure service provider.

After the factory renovation is completed, it will mainly produce Indium Phosphide optical chip products such as high-speed lasers and detectors, supplying Nokia's own optical network and data center interconnect businesses. the existing mature manufacturing team at the site will also be incorporated, completing the talent reserve for compound semiconductor processes.

Industry Observation: Amid the AI wave, equipment giants extending upstream to chips has become a trend

AI computing power is driving an explosion in demand for high-speed optical devices. Indium Phosphide wafer fabs are scarce assets, and the number of vendors globally capable of large-scale mass production is limited. The lack of mature third-party foundry capacity makes it difficult to meet rapidly growing order demands solely through procurement.

Against this backdrop, a clear trend of vertical integration has emerged in the industry chain: cloud vendors and AI chip companies are locking in capacity through capital binding, while network equipment vendors are choosing to acquire or self-build production lines, extending into the upstream chip manufacturing segment to hedge against supply chain shortage risks. Nokia's acquisition this time is a typical representative of this industry trend.

The market also points out that factory renovation and process migration still take a certain cycle. After the leased production line is put into operation in 2027, capacity release will need to ramp up, and there is still a long time until the full closing in 2029, so it cannot completely change the overall supply and demand pattern of the industry in the short term.