GlobalFoundries to Make TSMC’s AI Interposers in New York
GlobalFoundries will produce silicon interposers for TSMC's AI packaging at its New York facility under a $2B, 5-year deal. Volume production is expected to begin in 2028, adding a US-based source for a key AI-chip supply chain component. The agreement does not include immediate production or a fully US-based supply chain.
How this was made
The 30-second read
Why it matters
The contract secures a U.S. source for a critical packaging component but does not increase immediate AI‑chip output; volume production is slated for 2028.
Market read
Long‑term supply‑chain diversification with limited short‑term trading impact.
What to watch
Qualification milestones, yield performance, and integration with TSMC's existing supply chain could delay or reduce impact.
Background
GlobalFoundries, a private semiconductor foundry, signed a multiyear $2 billion agreement to produce silicon interposers for TSMC's CoWoS AI packaging at its Malta, New York fab.
Market effects
Adds a domestic source for silicon interposers, modestly easing advanced‑packaging constraints for AI chips.
Potentially benefits U.S. semiconductor manufacturing region, but limited immediate effect on broader markets.
Long‑term relevance for global AI‑chip supply chain resilience.
Counterpoint
The deal may not translate into meaningful capacity until 2028, limiting near‑term upside.
Key entities
- CompanyGlobalFoundries
Private semiconductor manufacturer entering interposer production for TSMC.
- CompanyTSMC
Taiwanese chipmaker sourcing interposers from GlobalFoundries.



