Taiwan Semiconductor Manufacturing Co., known as TSMC, now controls a commanding share of the world's advanced chip production. That concentration has become a growing worry for governments and industries that rely on its factories for everything from smartphones to military hardware. The dependency creates a single point of failure, vulnerable to geopolitical tensions and supply constraints that could ripple across the global economy.
A single point of failure for advanced chips
TSMC produces the vast majority of the most sophisticated semiconductors used in modern electronics. No other company comes close to matching its output of chips built on the smallest, most power-efficient manufacturing processes. That means a disruption at TSMC — whether from a natural disaster, a political crisis, or a supply chain snag — would halt production for countless products that depend on those chips.
The company's factories are concentrated in a region with well-known geopolitical risks. Any escalation in tensions could threaten operations, and the global tech industry has few alternatives to turn to. Other chipmakers like Samsung and Intel are trying to catch up, but they remain years behind in both capacity and technology.
Tensions that threaten production
Geopolitical strains have already prompted governments to rethink their reliance on TSMC. The United States and European Union have launched initiatives to boost domestic chip manufacturing, but building new fabs takes years and billions of dollars. In the meantime, the world's most advanced chips still come almost exclusively from TSMC's facilities.
Supply constraints are another risk. The chip shortage that began in 2020 exposed how fragile the global semiconductor supply chain really is. Even a small hiccup at TSMC can cause delays for automakers, electronics firms, and defense contractors. The company has been expanding capacity, but demand keeps growing faster than new factories can come online.
The cost of concentration
For customers, the lack of choice means they have little leverage. TSMC can set prices and allocate production as it sees fit, and clients have to accept the terms. That dynamic has pushed some large tech companies to design their own chips and work directly with TSMC, but they still depend on the same foundry.
Smaller firms face an even tougher situation. They often can't get enough allocation during tight periods, and they lack the bargaining power of giants like Apple or Nvidia. The entire semiconductor ecosystem is built around TSMC's processes, making it hard to switch even if an alternative existed.
No easy alternatives
Efforts to diversify production are underway, but they face steep hurdles. Building a leading-edge fab costs over $10 billion and requires years of engineering expertise. Even if new factories are built, they will need to match TSMC's yields and reliability to win over customers. That's a tall order.
Governments are offering subsidies and tax breaks to lure chipmakers, but the talent pool for semiconductor engineers is limited. And TSMC itself is building new plants in Arizona and Japan, which could help spread risk — but those facilities will still be part of the same company's network. A problem at TSMC's headquarters could still affect all its sites.
Whether the industry can reduce its reliance on TSMC before a major disruption remains an open question.
