GlobalFoundries has signed a $2 billion, five-year agreement to manufacture a key component that links AI processors and memory chips for TSMC at its facility in Malta, New York, the company announced Thursday.

The component in question is a silicon interposer. It sits beneath processors and memory chips inside advanced AI packages and enables the two to communicate at high speeds. Interposers have become a critical element of AI system design as chipmakers stack more silicon into single packages to push bandwidth higher.

What does the deal cover?

Under the terms announced Oct. 8, GlobalFoundries will expand manufacturing capacity at its Malta fab specifically to produce silicon interposers for TSMC. The agreement runs for five years and sets out a framework for additional capacity expansion as demand for advanced packaging grows.

The company expects volume production to begin ramping up in the first half of 2028. GlobalFoundries said the Malta facility is expected to become the first US-based source of silicon interposers used in advanced chip-packaging technologies.

Key points of the agreement:

• Deal value: $2 billion
• Duration: five years
• Site: GlobalFoundries' Malta, New York, facility
• Product: silicon interposers for TSMC's advanced AI packaging
• Volume ramp: first half of 2028

How did the market react?

Shares of GlobalFoundries rose about 4% in premarket trading following the announcement. Investors read the agreement as a concrete revenue commitment in a segment where capacity, not design wins, is the binding constraint.

The deal also deepens GlobalFoundries' role in the AI supply chain without requiring it to compete at the leading edge of transistor scaling. Interposer manufacturing plays to specialty process capability rather than the smallest process nodes.

Why does advanced packaging matter?

Advanced packaging has become a major bottleneck in AI chip production. Demand for the technology exceeds available manufacturing capacity, and interposers are one of the constrained inputs.

By qualifying a US-based interposer source, TSMC gains an additional supply option at a time when AI chipmakers are competing for packaging slots. For GlobalFoundries, the framework allows capacity to grow alongside demand rather than in speculative advance of it.

The agreement covers components that link processors and memory within packages — the high-speed communication layer that AI workloads depend on. As model sizes push memory bandwidth requirements upward, interposer capacity has moved from a niche specialty to a strategic input.

What happens next?

Production ramp timing is the number to watch. Volume output begins in the first half of 2028, meaning the deal addresses medium-term supply rather than the current shortage directly. Between now and then, GlobalFoundries must complete the capacity expansion at Malta and qualify its interposer process for TSMC's advanced packaging requirements.

The five-year structure leaves room for growth beyond the initial commitment. If AI packaging demand continues to outpace capacity, the framework established in this deal could support additional expansion at the New York site — positioning Malta as a US anchor in a supply chain segment that has, until now, lacked a domestic source.