GlobalFoundries signed a letter of intent with the US Department of Commerce on July 29, 2026, for a $300 million CHIPS Act award to scale up US silicon photonics manufacturing. Read the headline carefully: this is not quantum computing funding. It is an AI-infrastructure story first. It belongs on this site because the manufacturing capacity it builds is the same capacity photonic quantum computing and quantum networking depend on.
What the award funds
Silicon photonics moves data using light instead of electrical signals, which gives AI systems more bandwidth per watt of power drawn. The funding covers co-packaged optics, an approach that places photonic circuitry directly next to processors instead of routing signals through separate optical modules, along with next-generation optical materials, wafer technology, and advanced packaging. GlobalFoundries states target performance of 400 gigabits per second in throughput and energy consumption cut to a fifth of current-generation systems. The Department of Commerce receives roughly a 1 percent equity stake in GlobalFoundries as part of the deal. Work will run through GlobalFoundries' existing facilities in Malta, New York, and Burlington, Vermont.
Why a chipmaker's AI deal shows up on a quantum computing site
Much of today's silicon photonics and advanced optical packaging supply chain sits outside the United States, which is the same domestic-manufacturing motivation behind IonQ's acquisition of SkyWater Technology. The connection to quantum computing is indirect but real: photonic quantum computing companies like Xanadu and PsiQuantum, tracked on our industry landscape, depend on exactly this kind of silicon photonics fabrication and packaging capacity. So do quantum networking efforts aimed at linking separate QPUs with optical interconnects, the subject of our piece on quantum networking and distributed quantum computing.
What this does and does not tell you about quantum hardware
This award funds general-purpose silicon photonics aimed at AI data centers, not a quantum-specific fabrication line. No quantum hardware vendor is named as a direct beneficiary in the announcement. What it does tell you is that the underlying manufacturing base for photonic and optically networked quantum hardware is getting real government investment and real domestic capacity, for reasons that have nothing to do with quantum computing at all. That is worth knowing if you are trying to judge how much of the "domestic quantum supply chain" story making the rounds in 2026 is quantum-specific policy versus a broader chip and AI-infrastructure push that quantum hardware happens to benefit from as a side effect.