--- title: "TSMC is paying GlobalFoundries $2 billion for AI packaging capacity that starts producing in 2028" description: "TSMC will pay GlobalFoundries $2 billion over five years for CoWoS silicon interposers built in Malta, New York, with volume output ramping only in 2028. GFS jumped 4.06% to $50.02, within a dollar of the $51 Neutral target BNP Paribas set on Monday." publisher: "The Inference" section: "Deals" published: 2026-10-08T15:25:57.570Z modified: 2026-10-08T15:25:57.570Z canonical: https://theinference.org/article/tsmc-is-paying-globalfoundries-2-billion-for-ai-packaging-capacity-that-starts-producing-in-2028 language: en keywords: "TSMC, GlobalFoundries, Semiconductors, Advanced Packaging, AI Chips" --- # TSMC is paying GlobalFoundries $2 billion for AI packaging capacity that starts producing in 2028 > TSMC will pay GlobalFoundries $2 billion over five years for CoWoS silicon interposers built in Malta, New York, with volume output ramping only in 2028. GFS jumped 4.06% to $50.02, within a dollar of the $51 Neutral target BNP Paribas set on Monday. [GlobalFoundries](https://theinference.org/markets/companies/globalfoundries) signed a five-year, $2 billion manufacturing agreement with [TSMC](https://theinference.org/markets/companies/tsmc) to make silicon interposers at its Malta, New York fab, [the company said on October 8](https://gf.com/news-and-events/news/globalfoundries-reaches-agreement-to-establish-us-based-supply-of-silicon-interposers-for-advanced-ai-packaging/) [1]. These are the silicon boards that let GPU dies and memory share one package, feeding CoWoS, TSMC's flagship technology for high-volume AI packaging [1][3]. GF calls Malta the first US-based interposer source in that chain, with volume production ramping in the first half of 2028 [1]. GFS rose 4.06% to $50.02 on the news, a $26.80 billion market cap [2]. Against a base of about $25.75 billion, the pop added roughly $1 billion of value in a day. ## The foundry that quit the leading edge is now TSMC's supplier GF canceled its 7nm program in August 2018, judging the cost unaffordable, and [AMD](https://theinference.org/markets/companies/amd) moved its 7nm chiplets to TSMC within months [4]. A year later GF sued TSMC for patent infringement in the US and Germany, TSMC countersued, and that October the pair settled with a life-of-patents cross-license [4]. A GaN licensing deal followed in November 2025 [4]. The constraint has since moved down the chain. ASE, the world's largest packaging and testing house, [lifted 2026 capex by $2 billion to about $10.5 billion in July](https://www.reuters.com/world/asia-pacific/taiwans-ase-tech-raises-2026-capex-by-2-billion-strong-demand-2026-07-30/) [5], and its AI packaging lines were still sold out in August [6]. The sold-out lines point to packaging, not wafers, as the likelier queue for AI chips, and on that reading TSMC just rented floor space from the foundry that quit the leading edge. ## What the $2 billion does not disclose No annual split, no per-unit price, no capacity figure and no customer names; both companies have left every commercial detail of the deal undisclosed [3]. The technology is ready, at least: GF's 65PKG interposer platform is production-qualified at TRL9, the top readiness grade [3]. Spread evenly, $2 billion over five years is about $400 million a year against the $6.79 billion GF booked in 2025 [4][9]. *Chart: **Six years after the 7nm exit, GF's revenue still sits below its 2022 peak** Column chart of GlobalFoundries annual revenue, fiscal 2020 to fiscal 2025: up from $4.9 billion to an $8.1 billion peak in fiscal 2022, then down to $6.8 billion in fiscal 2025.* *GlobalFoundries annual revenue by fiscal year, US dollars in billions, from its SEC filings. Revenue peaked at $8.1 billion in fiscal 2022 and was $6.79 billion in fiscal 2025; the TSMC agreement adds roughly $400 million a year at an even split, and only from the 2028 ramp. Source: GlobalFoundries annual figures from its SEC filings [9]. [9]* BNP Paribas [cut the stock to Neutral from Outperform](https://theinference.org/article/bnp-paribas-cut-globalfoundries-to-neutral-51-target-from-80-gf-s-2027-price-increases-already-signed) on Monday October 5, target $51 from $80. Analyst Karl Ackerman called the growth drivers priced in; he flagged [silicon photonics guidance of $400 million to $500 million this year](https://www.msn.com/en-us/news/other/globalfoundries-downgraded-by-bnp-paribas-as-firm-sees-growth-drivers-priced-in/ar-AA2dBGit) as resting on an unproven capacity transfer, while conceding US capacity carries a premium [7]. The announcement-day pop landed 98 cents below the cut target. *Chart: **One day's pop carried GFS to BNP's cut target** Three bars: BNP Paribas' old $80 target for GlobalFoundries, its reduced $51 target, and GFS at $50.02 on October 8, 2026.* *BNP Paribas price targets for GlobalFoundries before (Outperform) and after (Neutral) its October 5, 2026, downgrade, and the GFS share price on announcement day, October 8, 2026. US dollars per share. Sources: Pluang [2]; Seeking Alpha via MSN [7]. [2][7]* ## What would make the pop real The mechanics suit both sides: TSMC buys CoWoS capacity on US soil without building a fab, and GF gets demand that funds new capacity at a plant it already runs [1]. The arithmetic is thinner. Roughly $1 billion of market cap was added on October 8 against about $400 million a year of revenue, at an even split, that starts only in 2028. TSMC's own pressroom [listed no announcement of the deal as of October 8](https://pr.tsmc.com/english) [8]. The tells ahead: capacity commitments and pricing attached to Malta, quarterly volume updates, and a ramp that holds to the first half of 2028. Until those numbers exist, the market is pricing 2026 news against 2028 revenue. ## Takeaway TSMC is paying GlobalFoundries $2 billion over five years for interposers built in Malta, New York, but volume starts only in 2028 and no pricing, capacity or customers are disclosed, so the one-day $1 billion pop prices 2026 news against 2028 revenue. ## Sources 1. [GlobalFoundries, "GlobalFoundries reaches agreement to establish U.S.-based supply of silicon interposers for advanced AI packaging", 8 October 2026](https://gf.com/news-and-events/news/globalfoundries-reaches-agreement-to-establish-us-based-supply-of-silicon-interposers-for-advanced-ai-packaging/) 2. [Pluang, "GlobalFoundries partners with TSMC to build US silicon interposer supply for AI chip packaging, $2B deal", 8 October 2026](https://pluang.com/en/news-feed/globalfoundries-setujui-pasokan-silicon-interposers-berbasis-as-untuk-pengemasan) 3. [Crypto Briefing, "GlobalFoundries signs five-year silicon interposer deal with TSMC", 8 October 2026](https://cryptobriefing.com/globalfoundries-tsmc-silicon-interposer-deal/) 4. [Wikipedia, "GlobalFoundries" (7nm cancellation, 2019 TSMC litigation and cross-license settlement, November 2025 GaN license, 2025 financials), accessed 8 October 2026](https://en.wikipedia.org/wiki/GlobalFoundries) 5. [Reuters, "Taiwan's ASE Tech raises 2026 capex by $2 billion on strong demand", 30 July 2026](https://www.reuters.com/world/asia-pacific/taiwans-ase-tech-raises-2026-capex-by-2-billion-strong-demand-2026-07-30/) 6. [DigiTimes, "ASE August revenue tops NT$80 billion record as AI packaging capacity stays sold out", 10 September 2026](https://www.digitimes.com/news/a20260910PD228/ase-revenue-packaging-capacity-testing.html) 7. [Seeking Alpha via MSN, "GlobalFoundries downgraded by BNP Paribas as firm sees growth drivers priced in", 5 October 2026](https://www.msn.com/en-us/news/other/globalfoundries-downgraded-by-bnp-paribas-as-firm-sees-growth-drivers-priced-in/ar-AA2dBGit) 8. [TSMC Press Center, latest news as of 8 October 2026](https://pr.tsmc.com/english) 9. [GlobalFoundries, annual figures from its SEC filings, retrieved 8 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001709048) --- TSMC is paying GlobalFoundries $2 billion for AI packaging capacity that starts producing in 2028 — The Inference. Canonical: https://theinference.org/article/tsmc-is-paying-globalfoundries-2-billion-for-ai-packaging-capacity-that-starts-producing-in-2028