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TSMC’s Arizona project does not prove that America has lost the semiconductor race, nor that China dominates every part of it. It shows something more consequential: rebuilding advanced-chip manufacturing in the United States is possible, but slow, expensive, subsidy-dependent and incomplete. At the same time, China is accumulating extraordinary scale in the mature, analog, power and commodity chips that keep cars, factories, power systems and consumer electronics running.
The competition is not one race. It is a stack of races—at the leading edge, in high-volume manufacturing, in equipment, in packaging and across the industrial supply chain.
What TSMC Arizona has actually achieved
TSMC announced its first Arizona investment in 2020 at roughly $12 billion. The plan has since expanded into a proposed U.S. network of six logic fabs, two advanced-packaging facilities and an R&D center. TSMC says planned U.S. investment now totals $265 billion, although that is a planned investment figure, not money already spent. (TSMC Arizona)
This is not merely a construction-site promise. TSMC says its first Arizona fab entered high-volume production of 4-nanometer chips in the fourth quarter of 2024. The second fab’s structure was completed in 2025, with 3-nanometer volume production targeted for the second half of 2027. Construction of a third fab began in 2025; it is intended for 2-nanometer and A16 technologies. Initial work on a fourth fab and the first advanced-packaging facility began in early 2026. (TSMC; TSMC 2025 Annual Report)
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“Advanced” is therefore a moving target. Arizona is producing an advanced process, but it is not yet operating every process generation that TSMC offers in Taiwan. The site is being brought forward step by step rather than reproducing Taiwan’s entire frontier overnight.
Why reshoring costs so much
A semiconductor fab is only one part of a semiconductor ecosystem. It needs ultra-pure water and reliable power; specialty gases, chemicals and materials; precision equipment technicians; construction specialists; process engineers; nearby suppliers; and advanced packaging. It also needs years of yield learning before a new line operates at mature economics.
TSMC’s own executives have identified construction-worker availability and infrastructure as physical constraints in Arizona. The company has had to transfer experienced personnel from Taiwan while developing a local workforce. The United States also has higher construction and labor costs and a less concentrated supplier cluster than Taiwan. (Reuters report)
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The public money behind the project
The Biden administration announced preliminary terms for up to $6.6 billion in direct CHIPS Act funding and up to $5 billion in proposed government loans for TSMC’s expanded U.S. plans. “Up to” matters: these are conditional incentives tied to agreements, milestones, reporting and national-security requirements, not a claim that the entire amount has already been disbursed. (U.S. Commerce Department)
That support is often treated as evidence of failure because private economics alone did not justify duplicating Taiwan’s ecosystem. It can also be understood as an insurance premium. Governments routinely pay for redundancy in areas where a disruption would impose costs far larger than the infrastructure itself. The policy succeeds only if subsidized fabs become durable, high-yield operations rather than isolated plants that depend permanently on grants.
China’s real semiconductor advantage
China’s strongest position is not necessarily the newest smartphone processor or AI accelerator. It is the enormous volume of less glamorous chips embedded throughout the economy.
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The OECD’s September 2025 capacity data puts China at approximately 4.23 million wafer starts per month of in-production mature-node logic capacity, ahead of Chinese Taipei’s 2.48 million. China also leads in power/discrete and analog capacity. By contrast, Chinese Taipei leads advanced logic, with about 1.55 million wafer starts per month versus China’s 0.39 million and the United States’ 0.84 million. These are capacity figures—generally normalized to eight-inch equivalents—not shipments, revenue, usable dies or yield. (OECD)
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Mature-node chips are not obsolete. They are used in automobiles, industrial controls, factory equipment, appliances, telecommunications systems, medical devices, power management and defense-support electronics. The Congressional Research Service estimates that mature nodes account for roughly 60% of global chip-production capacity. China’s share of the 28nm–65nm market rose from 18% in 2020 to 31.5% in 2023, and projections cited by CRS put China above 38% of global mature-node production by 2030. (Congressional Research Service)
This is how China could gain leverage without overtaking TSMC at 2nm. Control over the volume, price and availability of foundational chips can influence entire industrial supply chains.
Why China has not won the leading-edge race
China remains weaker in several areas that determine the frontier of computing:
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- Leading-edge logic production at scale and competitive yields.
- Access to EUV lithography and some of the most advanced etch, deposition, inspection and metrology tools.
- High-end foreign AI accelerators and the ecosystem around them.
- Advanced packaging capacity relative to rapidly growing demand.
- Global foundry trust, customer diversity and process know-how built around TSMC.
- Some electronic-design software and specialized equipment dependencies.
Export controls are designed to preserve those gaps. The Bureau of Industry and Security has tightened restrictions on advanced semiconductor-manufacturing equipment and related Chinese entities. The controls have raised the cost and difficulty of China’s frontier progress, but they have not stopped domestic substitution. (BIS)
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Restrictions can therefore have two effects at once: they slow access to the most advanced tools while encouraging Chinese customers to buy domestic equipment, redesign products around available processes and expand protected local capacity. Analysts at CSIS describe this localization dynamic as a major consequence of allied controls. (CSIS)
Who leads which layer?
| Layer | Current strength | What it means |
|---|---|---|
| Advanced foundry logic | Taiwan | Largest concentration of leading-edge process capacity and customer experience. |
| Mature logic, analog and power | China | Scale across the chips used in vehicles, industry and everyday products. |
| Memory | South Korea | Leadership in commodity memory; China is expanding but remains behind at the top tier. |
| Design and AI companies | United States | Major strengths in chip architecture, software and high-value semiconductor intellectual property. |
| Materials and equipment | United States, Japan and Europe | Critical tools, chemicals, wafers and specialty technologies remain distributed among allies. |
How to judge whether U.S. chip policy is working
Announced investment is the weakest measure. A serious scorecard should ask:
- Is the fab in high-volume production, or only announced or under construction?
- What are its yields, utilization and cost per usable die?
- Can it secure advanced packaging and nearby suppliers?
- Are skilled workers and utilities available for the next generation?
- Will customers continue using the site after incentives expire?
- Does the capacity reduce Taiwan-related risk, or merely add a small hedge?
- Is U.S. advanced capacity growing fast enough to offset China’s expansion in mature chips?
By those standards, Arizona is a partial success with serious unresolved problems. It has demonstrated real production and attracted further commercial investment, including expansion driven by strong, multi-year AI-chip demand. It has not made the United States independent of Taiwan, nor has it recreated Taiwan’s supplier density at American cost.
The verdict
The headline “America’s chip dream is dead” is wrong because Arizona is producing advanced chips and moving toward newer generations. The claim that China simply dominates semiconductors is also wrong because China still trails Taiwan and key allies in leading-edge logic, equipment and parts of the AI stack.
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But dismissing Arizona’s difficulties would be equally misleading. The project reveals how expensive, slow and institutionally demanding it is to rebuild a complete semiconductor ecosystem. Meanwhile, China is building the scale that matters in mature logic, analog and power devices—chips that make up most of global capacity and underpin the physical economy.
The more accurate conclusion is that America is rebuilding the frontier while China is contesting the volume base. TSMC Arizona is not proof that the United States has lost. It is proof that diversification will require sustained public support, skilled labor, infrastructure and years of execution—and that winning the advanced-chip race alone may not be enough.
Frequently Asked Questions
Does TSMC Arizona replace Taiwan’s semiconductor capacity?
No. Arizona diversifies TSMC’s manufacturing footprint and adds U.S. capacity, but it is not a replacement for Taiwan’s larger ecosystem, supplier density and leading-edge scale.
Are mature-node chips strategically important?
Yes. Mature chips account for about 60% of global production capacity and are essential to vehicles, industrial controls, power systems, appliances and communications equipment.
Has China defeated U.S. export controls?
Not in a complete sense. Controls have constrained access to some advanced tools and chips, while also encouraging Chinese substitution, domestic equipment purchases and expansion in mature-node manufacturing.
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