Samsung Taylor Fab 2 Booked by AMD and Nvidia for HBM Base Dies

What happened

Samsung Electronics has reportedly lined up customers for the entire planned output of its second chip plant in Taylor, Texas, years before the facility produces anything. Maeil Business Newspaper first reported the deal, citing industry sources. According to that report, the plant will make base dies for high-bandwidth memory (HBM) for AMD and Nvidia, and AMD accounts for most of the committed volume. 137 Samsung declined to comment when Reuters relayed the report. 3 A company official told another outlet only that it "cannot confirm customer-related details." 4

The reported specifications are consistent across outlets. The fab will use Samsung's 2-nanometer process and cover roughly 2.7 million square feet, about 1.5 times the size of Taylor Fab 1. 569 Formal construction begins this month, equipment installation is slated to start in February 2029, and mass production is targeted for 2030. 78 Samsung spokeswoman Michele Glaze had said on Oct. 27 that construction would begin in November and that the plant should be operational by 2030. The company first set that 2030 production target in July. 4 FourWeekMBA works out the gap from groundbreaking to first tool move-in at about 27 months, all for a plant whose customers are already named. 3

Why base dies matter

A base die is the bottom logic layer of an HBM stack. It acts as the interface between the stacked DRAM and the processor it feeds. 46 TokenPost points out that it is one component inside an HBM package, not a finished AMD or Nvidia chip. 4 Sammy Fans reports that Samsung plans to pair the Texas-made base dies with DRAM produced in South Korea to assemble complete HBM products. 5

This distinction matters because some coverage presents the news as Samsung "making chips for Nvidia." The work is narrower than that. It is a logic-process job that sits inside the memory supply chain. It still matters, though. As HBM generations advance, base dies are moving onto leading-edge foundry nodes, and that is where a company with both memory and foundry businesses could have a structural edge.

The bigger Taylor picture

The Fab 2 report follows reports that Fab 1 is also fully committed. TrendForce, citing Munhwa Ilbo, says Samsung's first Taylor fab is booked for 2nm production by Tesla's AI5 and AI6 chips, Broadcom communications chips, and Arm AI chips for smart devices. Trial operations could start as early as late September or early October, with mass production in 2027 at an initial capacity of 50,000 wafer starts per month. 12 Electrek reports that Tesla's AI5 has reached tape-out and will be built at Taylor on 2nm. A Samsung Foundry engineer disclosed this on LinkedIn and later deleted the post. Notably, 2nm had been expected to debut with AI6, not AI5. 11

TipRanks frames the Fab 2 bookings as coming after Samsung raised capital spending by 60%. 6 Samsung's own third-quarter results said its foundry business improved on growth in HBM base-die and advanced-node sales, though the company did not name customers or tie those sales to Taylor. 4

Market reaction and caveats

Investors reacted unevenly. AMD shares rose about 4% and Nvidia about 2.4%, while Samsung's Korean-listed stock fell roughly 4%. 9 One plausible reading is that the market sees immediate value for chip designers securing supply, while Samsung carries years of capital outlay before any revenue arrives.

Several outlets add a caution. The commitments do not immediately lift Samsung's foundry or HBM market share. 12 The long timeline and heavy spending remain key risks to watch. 10 No source discloses contract values or volumes. 9 Every customer detail still rests on anonymous industry sources rather than confirmation from Samsung, AMD or Nvidia. 34

Reading the signal

The reports differ mainly in tone, not substance. Some headlines say Samsung has "secured" the business and call it a "breakthrough." 19 The more careful accounts stress that the customer list is unconfirmed. 4 On the facts that are reported, the story is credible and fits a wider pattern. Samsung has struggled to win leading-edge foundry customers away from TSMC, and Taylor now appears to be filling up on two fronts: logic for Tesla, Broadcom and Arm at Fab 1, and HBM base dies for AMD and Nvidia at Fab 2. 125

The more telling signal is about the buyers. AI chip designers are reserving specialized capacity years in advance, as Yahoo Finance's coverage notes. 1 That makes 2030 output a strategic asset today. For Samsung, a booked backlog reduces the risk of building an empty fab. The real test is execution: whether its 2nm yields and the 2029-2030 schedule hold. Until then, the deals show that customers want an alternative to TSMC. They do not yet show that Samsung has caught up.