> ## Content Index > Fetch the complete content index at: https://www.sotkn.com/llms.txt > Use this file to discover other available public pages before exploring further. # GlobalFoundries signs $2B deal to make TSMC's AI chip interposers in New York - URL: https://www.sotkn.com/wire/globalfoundries-tsmc-2b-silicon-interposer-wire/ - Published: 2026-10-09T12:10:17.000Z - Updated: 2026-10-09T12:10:17.000Z - Description: GlobalFoundries will make silicon interposers for TSMC's CoWoS AI chip packages in New York under a $2B, five-year deal. Volume only ramps in 1H 2028. The stuck step is the Malta build. - Author: Sean - Tags: #desk-wire `WIRE` · `SEMICONDUCTORS` · `US` · Data as at 9 Oct 2026 GlobalFoundries will make a key part of TSMC's AI chip packages in New York. The two signed a **$2 billion**, five-year deal on **8 October 2026** for silicon interposers, the thin silicon layer that sits under an AI processor and its memory stacks and lets them talk at high speed. On the [semiconductors layer](https://www.sotkn.com/stack/semiconductors/), this is the packaging step, which Reuters calls a major constraint on AI chip output. The catch is the clock: volume production only starts to ramp in the **first half of 2028**. ## What happened GlobalFoundries (GF) announced the agreement from Malta, New York. The facts as released: The deal **$2 billion, multi-year; GF provides manufacturing service to TSMC** GlobalFoundries release, 8 Oct 2026; Reuters, 8 Oct 2026 The part **Silicon interposers for TSMC's CoWoS packaging, including built-in capacitors that steady the power supply** GlobalFoundries release, 8 Oct 2026 Where **New capacity at GF's Malta, New York fab: the first US source of these interposers** GlobalFoundries release, 8 Oct 2026 When **Volume ramp in the first half of 2028; initial term five years, with room to add capacity** GlobalFoundries release, 8 Oct 2026 GF shares rose about 4% in premarket trading on the news, Reuters reported. --- ## Why cash cares CoWoS is how TSMC puts an AI processor and its high-bandwidth memory side by side in one package. Every one of those packages needs an interposer underneath. Today that work is concentrated in Taiwan, where TSMC broke ground on a new packaging park in Kaohsiung in September. This deal adds a second source, in the United States, for one layer of that package. For GF, the money is real but not large, and not soon. Here is our own arithmetic, not a reported figure. If the $2 billion were spread evenly over five years, that is about **$400 million a year**. GF guided third-quarter revenue to **$1.885 billion**, or roughly **$7.5 billion** a year at that pace. So the deal would add about **5%** to GF's revenue once it is running. GF has not said how the $2 billion is split by year, or whether all of it is revenue to GF. ![Interposer clock: deal signed Oct 2026, volume ramp 1H 2028](https://storage.ghost.io/c/cd/10/cd10e222-131f-4ba4-b4a9-ca4214e8c12d/content/images/2026/10/interposer-clock-print.png) **Figure: Interposer clock.** The deal is signed. Next comes the stuck step: GF has to add capacity in Malta and get its parts working in TSMC's packages before volume starts in the first half of 2028\. At an even split, about $400 million a year, roughly 5% of GF's current revenue pace on our arithmetic. ## The step that is still open Nothing ships at volume for well over a year. In between, GF has to build out the Malta lines, then get its interposers working inside TSMC's packages. GF did not give a capacity figure, a spending figure, or the name of any end customer. ## The second-order read **Who gets paid.** GF, from manufacturing fees once the ramp starts. The suppliers of the equipment GF adds in Malta, during the build. TSMC gets a US-made source for one layer of its packages without building it itself. **Who pays.** TSMC pays GF for the service. GF adds the Malta capacity before the fees arrive; it has not said what that costs or who funds it. **Who waits.** GF shareholders, for revenue that starts in 2028\. AI chip buyers who want more packaging capacity sooner: this does not help them in 2026 or 2027. **Stuck step.** The Malta capacity build. Until volume ramps in the first half of 2028, the $2 billion is a contract, not cash. ## Two cautions GF called it a "$2 billion agreement" but did not say whether that is the revenue it expects, a ceiling, or something else. Our 5% figure assumes it is all revenue to GF, spread evenly. Interposers are one layer of a CoWoS package. This deal does not add chip-making or final packaging capacity in the US by itself. ## What to watch - **GF third-quarter results**: any word on spending for Malta, or on how the $2 billion lands by year. - **TSMC third-quarter results**: anything on CoWoS capacity for 2027 and 2028, and on packaging outside Taiwan. *Read: [Semiconductors](https://www.sotkn.com/stack/semiconductors/), [If AI Chip Substrates Stay Short Into 2028, Where Does Cash Stick?](https://www.sotkn.com/analysis/if-substrates-stay-short-2028-where-cash-sticks/), and [TSMC September sales put Q3 above its own guidance](https://www.sotkn.com/wire/tsmc-september-2026-sales-q3-above-guidance-wire/)* --- **Get the Wire.** A free brief every day, here and in your inbox. **[Subscribe free →](https://www.sotkn.com/#/portal/signup)** *Sources: [GlobalFoundries, "GlobalFoundries reaches agreement to establish U.S.-based supply of silicon interposers for advanced AI packaging", 8 Oct 2026](https://gf.com/news-and-events/news/globalfoundries-reaches-agreement-to-establish-us-based-supply-of-silicon-interposers-for-advanced-ai-packaging/?ref=sotkn.com): multi-year $2 billion agreement, manufacturing service to TSMC for CoWoS interposers incl. embedded deep trench capacitors, capacity added at Malta, first US-based source, volume ramp 1H 2028, initial five-year term; [Reuters, 8 Oct 2026](https://d2233.cms.socastsrm.com/2026/10/08/globalfoundries-to-make-key-ai-chip-component-for-tsmc/?ref=sotkn.com): shares up about 4% premarket, advanced packaging a major constraint on AI chip production; [TNGlobal, 9 Oct 2026](https://technode.global/2026/10/09/globalfoundries-tsmc-2b-ai-packaging-deal/?ref=sotkn.com): TSMC-anchored packaging park in Kaohsiung broke ground in September; [GlobalFoundries Q2 2026 results, 5 Aug 2026](https://investors.gf.com/news-releases/news-release-details/globalfoundries-reports-second-quarter-2026-financial-results?ref=sotkn.com): Q3 2026 revenue guidance $1.885 billion ± $25 million. The $400 million a year, $7.5 billion run rate and 5% share are our arithmetic. Not investment advice. Do your own research.*