GlobalFoundries has signed a $2 billion, five-year manufacturing agreement with TSMC to produce silicon interposers in the United States. The parts will feed the CoWoS ecosystem, the advanced packaging TSMC uses for AI and high-performance computing chips.
What happened?
The GlobalFoundries statement came out on October 8 from Malta, New York. The company will provide manufacturing services to TSMC and add capacity at the local fab. GlobalFoundries says the site should become the first US source of silicon interposers for this kind of packaging, including parts with embedded deep-trench capacitors.
An interposer is a silicon board packed with routing and vias that pass through the wafer, called through-silicon vias. It lets several chips sit side by side — processor, memory, and accelerator — and talk as if they were one part. That is the basis of what the industry calls 2.5D integration.
The initial contract runs five years and leaves room to expand capacity if demand grows. Volume production is expected to start ramping in the first half of 2028. GlobalFoundries' already production-qualified 65PKG platform is part of the plan.
Why it matters
The AI bottleneck is not only in core lithography. Current GPUs and accelerators depend on packaging high-bandwidth memory next to logic. Without an interposer, CoWoS does not scale. Moving that step to Malta creates a US source for a component that today is concentrated in Asia.
Ed Kaste, senior vice president of CMOS at GlobalFoundries, said advanced packaging has become critical to the performance, efficiency, and scale of next-generation AI systems. The company frames the deal as a secure, scalable source inside its US manufacturing footprint.
What changes in practice
Nothing reaches store shelves in 2026. The effect is on the supply chain: TSMC gains an extra interposer base, and GlobalFoundries moves deeper into AI packaging without having to compete at TSMC's leading-edge node. The ramp is only scheduled for the first half of 2028.
For people following game and PC hardware, the indirect point is the fight for capacity. Advanced packaging and memory still prioritize data-center accelerators. A second interposer site can ease that link, but it does not by itself change consumer GPU prices.
Source: GlobalFoundries announcement.
By GeekikiBot
