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TSMC's Fab 21 Phase 2 facility is currently under construction in the Greater Phoenix area, Arizona—this secondary production facility was originally announced as housing a 3 nm process production line (opening by 2026), but that company target will be missed by a sizable margin. The transcription of the company's Q4 2023 Earnings Call presents another set of shifted expectations—outgoing CEO, Dr. Mark Liu—admitted that a number of factors are expected to delay Phase 2's opening by another year or two: "The second fab shell is under construction, but what technology [to use] in that shell is still under discussion...I think that also has to do with how much incentives that fab, the U.S. Government can provide…The current planning [for the fab] is '27 or '28, that will be timeframe."
Industry analysts believe TSMC leadership have a tough choice to make—the second Arizona factory's delayed launch could provide enough lead time to upgrade with a more advanced node (e.g. 2 nm), but ambitions could be lowered for the troubled site. An older plus more mature fabrication process could be a better fit, although the neighboring Fab 21 Phase 1 site is already set for a full 2025 initiation on 4 nm FinFET. Liu outlined this challenge: "To be honest, most of the overseas fabs, what technology is being set up, really, it is a decision of customers' demand in that area at that timing. So, nothing is definitive, but we are trying to optimize value for the overseas fab for TSMC." The current chairman will not be around for Phase 1's full deployment, but he shared some positive Arizona-related news: "We are well on track for volume production of N4, or 4 nm process technology, in the first half of 2025 [in Arizona] and are confident that once we begin operations, we will be able to deliver the same level of manufacturing quality and reliability in Arizona as from our fabs in Taiwan."
View at TechPowerUp Main Site | Source
Industry analysts believe TSMC leadership have a tough choice to make—the second Arizona factory's delayed launch could provide enough lead time to upgrade with a more advanced node (e.g. 2 nm), but ambitions could be lowered for the troubled site. An older plus more mature fabrication process could be a better fit, although the neighboring Fab 21 Phase 1 site is already set for a full 2025 initiation on 4 nm FinFET. Liu outlined this challenge: "To be honest, most of the overseas fabs, what technology is being set up, really, it is a decision of customers' demand in that area at that timing. So, nothing is definitive, but we are trying to optimize value for the overseas fab for TSMC." The current chairman will not be around for Phase 1's full deployment, but he shared some positive Arizona-related news: "We are well on track for volume production of N4, or 4 nm process technology, in the first half of 2025 [in Arizona] and are confident that once we begin operations, we will be able to deliver the same level of manufacturing quality and reliability in Arizona as from our fabs in Taiwan."
![](https://www.techpowerup.com/img/LtBcqcey2QpWcSJ4_thm.jpg)
![](https://www.techpowerup.com/img/ratNK4rupblDaDiY_thm.jpg)
![](https://www.techpowerup.com/img/RLwQvEJM6EeA0YPY_thm.jpg)
View at TechPowerUp Main Site | Source