GF’s $2B TSMC pact boosts US AI packaging in NY, cutting reliance on overseas assembly

Organisations relying on domestic semiconductor manufacturing see a significant supply chain improvement after GlobalFoundries announced a partnership with TSMC. The agreement targets the production of silicon interposers, a critical component for advanced chip packaging. This collaboration aims to reduce the current dependency on overseas facilities for assembling high-performance AI accelerators and graphics processing units.

According to a report by The Register, the deal is worth $2 billion and spans five years. GlobalFoundries will manufacture the interposers at its Malta, New York fabrication plant. These components are essential for TSMC’s chip-on-wafer-on-substrate (CoWoS) packaging specification. The partnership allows TSMC to source key packaging materials directly from a US-based partner, strengthening domestic production capabilities for complex multi-die assemblies.

What we know

Silicon interposers sit beneath compute logic and memory chips, providing a faster and lower-power communication path than conventional organic packaging. As noted by The Register, almost every chip employing high-bandwidth memory today relies on an interposer or interconnect bridge. This technology is vital for stitching together the multiple dies found in modern AI accelerators and GPUs. Without these components, the high data throughput required by artificial intelligence workloads would be difficult to achieve efficiently.

Advanced packaging has emerged as a major bottleneck for American chip manufacturing. The Register reports that when TSMC began producing Nvidia’s Blackwell generation GPUs in Arizona last year, the final products still required round-tripping to Taiwan for assembly. Although TSMC has contracted Amkor for US packaging services and broken ground on its own facilities, those sites are not expected to come online until 2028 and 2029.

GlobalFoundries plans to add additional capacity at its Malta plant to meet the demand generated by this partnership. However, volume production is not scheduled to begin until the first half of 2028 at the earliest. The initial five-year contract includes an option to extend as needed. GlobalFoundries shares gained as much as 7% following the announcement, reflecting market confidence in the expanded production capacity.

Defender's checklist

• Review current supply chain dependencies for critical semiconductor components and identify single points of failure.
• Monitor vendor announcements regarding production timelines for advanced packaging technologies and AI accelerators.
• Assess the impact of potential manufacturing bottlenecks on the deployment schedule for new datacentre infrastructure.
• Diversify suppliers for high-bandwidth memory and associated packaging materials to mitigate regional production risks.

What to do and how to stay safe: GlobalFoundries

• Audit your hardware procurement contracts for clauses related to supply chain delays or manufacturing disruptions.
• Track public updates from major fab operators regarding capacity expansions and new facility openings.
• Evaluate the geographic origin of critical components in your current inventory to understand exposure to international logistics.
• Plan infrastructure upgrades with buffer periods that account for the multi-year timeline of new production capacity.

General security guidance from the TechWire Beat newsroom. It is not confirmed advice from the organisations named in this story.

Frequently asked questions

When will the new silicon interposer production begin?

Volume production is not expected to start until the first half of 2028 at the earliest.

Why are silicon interposers important for AI chips?

They provide a higher-speed, lower-power communication path between compute logic and memory in multi-die assemblies.

Where will the interposers be manufactured?

GlobalFoundries will produce them at its Malta, New York fabrication facility.