The Silicon Hegemon – EE Times

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In today’s global economy, one key link holds everything together. Surprisingly, it doesn’t lead to Silicon Valley, Shenzhen, or Munich but to a subtropical island that was once known for sugar and rice exports and is now a global leader in semiconductor manufacturing.

Today, Taiwan does not merely participate in the global technology supply chain; it sets the pace. As of early 2026, the island produces approximately 92% of the world’s most advanced logic chips—those measuring 5 nm and smaller.

These components serve as the brains for everything from the AI algorithms reshaping human labor to the guidance systems of hypersonic missiles. This concentration of industrial power has created a paradox. Taiwan is both the world’s most essential economy and its most fragile single point of failure.

At the center of this hegemony stands Taiwan Semiconductor Manufacturing Company (TSMC), a corporate titan that has effectively decoupled from the cyclical downturns of consumer electronics to ride the AI supercycle. Yet as TSMC pushes the boundaries of physics with its new 2-nm process, it faces a collision course with the finite limits of Taiwan’s energy grid and the volatility of “great power” politics.

Foundry revolution

To understand why Taiwan leads today, it helps to look back at a big risk taken almost 40 years ago. In the mid-1980s, companies known as integrated device manufacturers, such as Intel and Texas Instruments, both designed and manufactured their own chips.

Morris Chang, a veteran of Texas Instruments who had been passed over for the CEO role, was recruited by the Taiwanese government to modernize the island’s primitive electronics sector. Backed by government minister K.T. Li, TSMC was founded in 1987 with a radical premise: the “pure-play foundry” model.

Chang saw that while there were talented chip designers around the world, few had the money needed to build factories, or “fabs.” By making a company that only manufactured chips for others and didn’t compete in design, TSMC brought together demand from across the industry. This approach helped companies such as Nvidia, Apple, and Qualcomm grow by letting them focus on design and outsource production to Taiwan.

The foundation for this success was laid even earlier with the 1976 RCA Project, a technology transfer deal between Taiwan’s Industrial Technology Research Institute and the Radio Corporation of America. In fact, Taiwan became a top chip manufacturer with help from the United States.

The initiative, along with the early assembly operations established by Texas Instruments, trained a generation of Taiwanese engineers and the famed “transistor girls”—assembly-line workers renowned for their manual dexterity and discipline. This historical transfer of know-how from the U.S. has seeded the precision-driven industrial culture that defines Taiwan today.

Critical node

Today, that early risk has turned into a near-monopoly. Taiwan accounts for about 20% of the world’s semiconductor output, but its control over the most advanced chips is complete. In the market for cutting-edge chips, TSMC holds over 90%, while competitors such as Samsung and Intel struggle to gain ground.

The scale of this dominance is huge. Taiwan’s semiconductor production is expected to reach $197.2 billion in 2025, driven by strong demand for AI accelerators.

In just the fourth quarter of 2025, TSMC reported a gross margin of 62.3%, which is unusually high for a capital-intensive business and demonstrates its strong pricing power. The company used 305 process technologies, made 12,682 products for 534 customers, and expects to earn US$35 billion in revenue and a 64% gross margin in the first quarter of 2026. These numbers include both Taiwan and overseas operations.

TSMC Chairman and CEO C.C. Wei told investors in late 2025 that he was not worried about an AI bubble. The demand from AI continues to be strong, Wei said, adding that he had “not observed any change in our customers’ behavior so far” when it comes to spending.

This strong demand has allowed TSMC to separate its financial results from slower sectors such as smartphones and cars, enabling it to capture most of the industry’s profits.

The gap between TSMC and its competitors has widened significantly. Samsung, the only other company trying to compete at the 3-nm and 2-nm level, has struggled with production problems. In late 2025, Samsung’s foundry leaders admitted to employees that their technology “falls behind other big manufacturers.”

At the same time, Intel’s attempt to catch up with its 18A node has come under scrutiny. Wei said that TSMC’s current 3-nm technology matches Intel’s future 18A and that TSMC’s upcoming 2-nm technology will be “more advanced than both.”

TSMC PROCESS TECHNOLOGY ROADMAP (2024–2028)

The Angstrom era

Keeping this lead means mastering the science of the extremely small. As the industry enters the Angstrom era, in which sizes are measured in tenths of a nanometer, TSMC is making one of the most difficult technical changes in its history. Its special partnership with ASML, the Dutch company that makes the lithography machines critical to make those chips, and its unique expertise keep TSMC ahead of competitors.

“Taiwan’s pure-play foundry model has built a global foundation for semiconductor design companies,” Mateo Valero, director of the Barcelona Supercomputing Center, said. “In the Angstrom era, with technologies such as GAA [gate-all-around], Super Power Rail, and CoWoS [chip-on-wafer-on-substrate] packaging, Taiwan remains a key player to the AI revolution. TSMC’s advancements in Moore’s Law drive progress from high-performance computing to efficient devices, making Taiwan a key technical hub of today’s digital economy.”

In the last quarter of 2025, TSMC started large-scale production of its 2-nm chips. This new technology ends the use of the FinFET transistor design, which has been the standard for 10 years. Instead, TSMC is using nanosheet transistors, also called gate-all-around. These wrap the gate material all the way around the silicon channel, which stops electrical leaks and boosts performance by 10% to 15% or cuts power use by up to 30% compared with the previous generation.

But TSMC’s plans go further: The company has announced its A16 node, set for the second half of 2026, which will use Super Power Rail technology. Normally, power and data wires compete for space on the front of the silicon wafer, leading to congestion.

With A16, TSMC will send power through the back of the wafer using new materials such as ruthenium. This change fixes critical wiring issues in high-performance computing and competes directly with Intel’s PowerVia solution.

Even more important than the transistors are how they are packaged. For modern AI systems, the main limit is not just how fast they process but how quickly they can move data between memory and logic.

TSMC’s CoWoS packaging is now the most limited resource in the global supply chain. CoWoS lets Nvidia’s GPUs and high-bandwidth memory stacks sit side by side on a silicon base, creating a large data highway.

“At TSMC, a higher level of capital expenditures is always correlated with higher growth opportunities,” CFO Wendell Huang said, explaining why the company will raise capital spending to between US$50 billion and US$55 billion in 2026. Much of this money will go to expanding advanced packaging, which should almost double to 1.275 million wafers in 2026 to meet the needs of its Grand Alliance of customers.

Grand Alliance and local supply chains

TSMC does not work alone; it is at the center of what it calls the Grand Alliance, a group of intellectual-property providers, equipment makers, and material suppliers. At a ceremony in Arizona, Wei described this network as a partnership meant to “unleash innovation.”

In the past, Taiwan depended on Japan and the U.S. for important materials and equipment. But due to geopolitical risks, the supply chain is becoming more localized. Taiwanese company GlobalWafers is now the world’s third-largest supplier of silicon substrates. Companies like LCY Chemical also provide extremely pure isopropyl alcohol, which is needed to clean wafers at the 3-nm level.

This close cooperation makes it hard for competitors to enter the market. Partners in the Open Innovation Platform get early access to TSMC’s process design kits, which tie their chip designs to TSMC’s manufacturing methods. Switching a design from TSMC to another foundry is not easy—it requires a major, costly redesign, creating a strong moat around Taiwan’s foundry business.

Green Paradox

The constant push for smaller, better chips has run into Taiwan’s physical limits. Producing semiconductors consumes significant resources, creating a “Green Paradox”: Making energy-efficient chips now takes more and more energy.

TSMC alone consumes approximately 9% of Taiwan’s total electricity generation, a figure projected to rise to 12% by 2030. The transition to High-NA EUV lithography, the next generation of tools required for Angstrom-level manufacturing, exacerbates this challenge. A single High-NA machine consumes up to 1.4 MW of power, roughly 20% more than current models. This demand places immense stress on Taiwan’s power grid, which has struggled with stability following the phase-out of nuclear power and delays in renewable energy projects.

Water shortages are another serious problem. Climate change has altered Taiwan’s typhoon patterns, leading to severe droughts in recent years. In response, TSMC has built some of the world’s most advanced water-recycling systems. By 2024, the company replaced 17% of its total water use with reclaimed industrial wastewater, treated to be even purer than drinking water.

There is also a shortage of skilled workers. Taiwan has one of the world’s lowest birth rates, leading to a shortage of talent. In May 2025, the semiconductor industry was short about 34,000 workers. To fix this, the government has set up special semiconductor colleges, and companies are using more automation and hiring foreign workers to fill the gap.

End of the ‘Silicon Shield’

Every chip made in Hsinchu is affected by global politics. The “silicon shield” theory says that Taiwan’s key role in the world economy helps protect it from military threats by China. The idea is that because China imports more semiconductors than oil, destroying Taiwan’s chip factories would hurt China’s own economy.

“Our semiconductor industry is especially significant: a ‘silicon shield’ that allows Taiwan to protect itself and others from aggressive attempts by authoritarian regimes to disrupt global supply chains,” Tsai Ing-wen, then-president of Taiwan, said in an article in Foreign Affairs in November 2021.

But this theory is now being tested. The U.S. is using export controls to limit China’s access to advanced chips and equipment, while Beijing is investing billions in its Big Fund to become self-sufficient in older chip technologies. Some experts say that if China feels permanently blocked from advanced technology, the “silicon shield” may lose its deterrence power.

Furthermore, recent news reports of China developing an advanced EUV lithography machine, something that only ASML produces, could allow Chinese companies to make advanced node processors without relying on foreign technology.

The economic risks of a conflict are almost impossible to measure. Some estimates say a war over Taiwan could erase $10 trillion, or about 10% of global GDP, which would be much worse than the 2008 financial crisis or the COVID-19 pandemic. According to the “broken nest” theory discussed by U.S. defense experts, Taiwan’s chip factories might be shut down in the event of an invasion to prevent them from being taken over. This scorched-earth approach could send the global tech industry into a depression.

To deal with these risks, TSMC has started a strategy of globalization by necessity. The company is spending $65 billion to build three factories in Arizona, with the first one set to start 4-nm production. TSMC has also expanded into Japan and Germany to support the car and industrial markets.

However, TSMC leaders have made it clear that this regional expansion has limits. The most advanced research and the largest production of cutting-edge chips will stay in Taiwan. The Arizona factories are meant to be one generation behind those in Taiwan, so the most advanced technologies, such as A14 and the latest CoWoS packaging, remain in Hsinchu and Kaohsiung.

As 2026 begins, Taiwan remains the semiconductor industry’s stronghold. Its dominance shows the impact of Morris Chang’s vision and the strength of the Grand Alliance. However, for the rest of the world, this creates an uneasy sense of dependence.

The global economy has put its digital future in the hands of one island, hoping that careful diplomacy and deterrence will keep the factories running. For now, the chips keep coming, but this requires constant attention and caution.