When your car’s dashboard flickers and dies, or a new gaming console sells out in seconds, the culprit is often the same: a supply chain so tightly wound that a single hiccup can unravel everything. I’m Sam Tazik, and I’ve spent years watching the tech industry treat its silicon backbone as an infinite resource. The reality is less comfortable. The global chip supply chain, for all its sophistication, has concentrated production into a handful of choke points. When one of them fails, the whole system feels it.
This isn’t a story about a distant future or a far-off factory. It’s about the decisions made over decades that turned circuit boards into commodities and then left us holding the bag when the flow stopped. We’ll walk through exactly where the bottlenecks are, why they exist, and what happens when they break. No jargon for jargon’s sake—just a clear look at a messy, interconnected problem.
The Geography of a Single Point of Failure
Most people picture a chip as a simple product: design it, build it, ship it. The real chain looks more like a relay race where each runner is in a different country, and dropping the baton means a multi-year setback. The concentration of specific steps into specific regions isn’t an accident of geography; it’s a result of economic gravity that’s become dangerous.
Taiwan: The Wafer-Thin Margin
Taiwan Semiconductor Manufacturing Company (TSMC) makes over 90% of the world’s most advanced chips. Not 90% of a niche—90% of everything that powers your phone, your cloud servers, and increasingly your car. This isn’t a secret, but the sheer scale is worth absorbing. TSMC’s fabs in Hsinchu, Tainan, and Taichung are the only places on Earth that can reliably produce chips at 5-nanometer and 3-nanometer nodes. A drought, a seismic event, or a geopolitical standoff in the Taiwan Strait doesn’t just slow down one company; it starves Apple, Nvidia, AMD, and Qualcomm of their central nervous system.
The concentration extends beyond logic chips. Taiwan’s overall semiconductor ecosystem, including packaging and testing, controls a disproportionate share of the backend. When a container ship blocked the Suez Canal, we saw how fragile just-in-time delivery could be. Taiwan’s dominance is that canal, but for the digital world, and there’s no easy detour.
The Dutch Light That Etches Everything
If TSMC is the bottleneck for making chips, ASML is the bottleneck for the machines that make the chips. This Dutch company is the sole producer of extreme ultraviolet (EUV) lithography systems, the $150-million-plus machines that use light with a wavelength of 13.5 nanometers to print circuits onto silicon. No EUV, no advanced chips. ASML ships only a few dozen of these systems a year, and their supply chain is its own nested set of singularities: the mirrors come from Zeiss in Germany, the laser from Cymer in San Diego (a subsidiary). A disruption at any one of these points cascades into a multi-year wait for new capacity.
This isn’t a market of interchangeable parts. A chip fab designed around an ASML EUV machine can’t just swap in a different vendor’s tool. The entire manufacturing process is calibrated to that one piece of equipment. It’s the definition of a single point of failure wrapped in a supply chain.
Intel and Samsung: The Partial Counterweights
It’s not that alternatives don’t exist. Intel operates fabs in the U.S., Ireland, and Israel; Samsung has massive capacity in South Korea and is expanding in Texas. But their advanced-node yields and customer volumes don’t match TSMC’s. For years, Intel kept its leading-edge capacity mostly for itself, while Samsung’s foundry business has struggled with the consistency that fabless companies like Qualcomm demand. The result is a market structure where TSMC became the default, and everyone else is playing catch-up. The spare capacity exists on paper, but shifting a multi-billion-dollar chip design from one foundry to another takes 12-18 months of re-engineering. That’s not a spare tire; it’s a whole new vehicle.
Why the Concentration Happened
This didn’t happen by accident. The semiconductor industry has chased a ruthless economic logic for 40 years. Building a state-of-the-art fab costs north of $20 billion and requires a volume of orders that few companies can guarantee. The industry split into “fabless” designers (who create the blueprints) and “foundries” (who build the physical chips) in the 1980s. That disaggregation made sense on a spreadsheet: share the massive fixed costs of a fab across many customers, and each customer gets access to manufacturing they couldn’t afford alone.
TSMC executed this model better than anyone. It invested early, kept its focus purely on manufacturing, and built such a lead in process technology that customers had little choice but to line up. A virtuous cycle turned vicious: the more orders TSMC got, the more it could invest in R&D, and the further ahead it pulled. Competitors that stumbled—like GlobalFoundries deciding to stop chasing the most advanced nodes in 2018—only cemented the monopoly on leading-edge logic.
The same forces concentrated other parts of the chain. Photoresist chemicals come predominantly from Japanese firms like JSR and Tokyo Ohka Kogyo. The substrates for advanced packaging are dominated by a few suppliers in Japan and South Korea. At each layer, the economics of scale and specialized knowledge have whittled the field down to one or two viable players.
The Cost of a Snap
When I say “single point of failure,” it’s tempting to think of a factory fire or an earthquake. Those are real threats, and they’ve happened. The 2021 drought in Taiwan forced TSMC to truck water to its fabs because chipmaking consumes millions of gallons a day. But the more insidious failures are systemic. The concentration creates brittleness that a small shock can expose.
Automotive: The Canary in the Coal Mine
The automotive industry’s chip crisis of 2020-2022 wasn’t just a pandemic story. Carmakers cancelled orders at the start of COVID, and foundries reallocated that capacity to consumer electronics. When car demand snapped back, there was no spare silicon. The supply chain had zero slack. Automakers lost an estimated $210 billion in revenue in 2021 because they were at the back of a line that led to a single factory in Taiwan. The lesson they learned—too late—was that modern cars contain hundreds of chips, many built on mature nodes (28nm and above) that no one was rushing to expand. The concentration of those mature-node fabs in TSMC and a few other Taiwanese firms meant that a decision made in a boardroom in Hsinchu idled assembly lines in Detroit and Wolfsburg.
Geopolitics as a Single Thread
The Taiwan Strait is the most obvious geopolitical choke point, but it’s not the only one. Japan’s hold on specialty chemicals means that any disruption to its chemical industry—from a natural disaster to export controls—can freeze global chip production. South Korea’s dominance in memory chips (Samsung and SK Hynix together control roughly 70% of the DRAM market) puts a similar pressure on everything that needs RAM. The supply chain is not just concentrated; it’s concentrated in places that are, to put it mildly, in complicated neighborhoods.
Is There an Antidote?
Governments have noticed. The U.S. CHIPS Act, the European Chips Act, and similar programs in Japan and India are pumping hundreds of billions into building local semiconductor capacity. The explicit goal is to diversify the supply chain so that no single region can hold the world hostage. Intel is building new fabs in Ohio. TSMC is building one in Arizona. Samsung’s Texas plant is expanding.
But fabs take years to build and even longer to reach competitive yields. The Arizona TSMC fab was announced in 2020, faced delays, and won’t produce advanced chips in volume until 2025 at best. And even then, the wafers will still be shipped back to Taiwan for the advanced packaging that completes the chip. Geographic diversity in fabrication means less if the backend remains clustered.
A more realistic path involves lowering the stakes through design. Some chip architects are exploring chiplets—smaller, modular silicon blocks that can be made on different process nodes and stitched together. This approach lets a designer mix a leading-edge compute die from TSMC with an I/O die from an older, more widely available node. It doesn’t eliminate the dependency on advanced fabs, but it reduces the silicon area that requires them, which stretches capacity and offers some flexibility if one node is constrained.
Another angle is redesigning products to be less dependent on the latest node. Not everything needs a 3nm chip. The automotive industry has started to rethink its electronics architectures to use more common, mature-node chips where possible. It’s a pragmatic retreat from the most advanced edge that acknowledges the fragility of the newest one.
What a Resilient Supply Chain Would Look Like
A truly resilient chip supply chain wouldn’t eliminate concentration—that’s probably impossible given the economics—but it would build in enough redundancy that no single point could trigger a global shortage. That means three or more fabs at each leading-edge node, in at least two different regions, with viable backup suppliers for critical chemicals and equipment. It means stockpiles of finished chips for essential industries, not the just-in-time model that left automakers gasping. It means a packaging ecosystem that isn’t anchored to one island.
Realistically, we’re a decade away from that, if we ever get there. The investments happening now are a start, but they’re chasing a moving target. By the time the new fabs are producing their first wafers, TSMC will have moved on to the next node, and the concentration will simply have shifted to a new generation of technology. Resilience is a process, not a project.
Frequently Asked Questions
Why can’t we just build more chip factories to fix the problem?
Building a leading-edge semiconductor fab is one of the most capital-intensive endeavors on Earth, costing $20 billion or more. It takes 3-5 years from breaking ground to volume production, assuming no delays in equipment or permits. The equipment inside the fab, particularly ASML’s EUV lithography machines, has its own multi-year backlog. You can’t simply write a check and spin up a factory next month. The whole infrastructure—from specialized construction to ultra-pure water supply to a trained workforce—must be built in parallel.
Are older, less advanced chips also concentrated?
Yes, though the dynamics differ. Mature-node chips (28nm and above) are made in older fabs that have often been fully depreciated. The business case for building new capacity at these nodes is weak because margins are thin. As a result, production has consolidated at a few foundries, mostly in Taiwan and China, that run these older lines at high utilization. When demand spiked for microcontrollers and power management chips during the pandemic, there was no spare capacity to activate, leading to the severe shortages in automotive and industrial sectors.
What happens if a major earthquake hits Taiwan’s semiconductor hub?
A significant seismic event in the Hsinchu Science Park, where many of TSMC’s critical fabs are located, could halt production for weeks or months. Chipmaking equipment is extremely sensitive to vibration; even a minor quake can require extensive recalibration. A major quake could damage the ultra-clean rooms and the complex piping necessary for chemical and water delivery. Given TSMC’s 90%+ share of advanced chips, the global impact would be immediate and severe, with no short-term substitute for the lost capacity. The industry carries some insurance in the form of safety stock, but it’s measured in weeks, not months.
Is the chip shortage over, or should we expect more disruptions?
The acute shortage of 2020-2022 has eased in most sectors, with some areas like memory chips now in oversupply. However, the underlying structural concentration hasn’t changed. The next disruption is a matter of when, not if. Geopolitical tension, climate-related events (drought, floods), or even a concentrated cyberattack on a key supplier could trigger the next cascade. The supply chain is still running with almost no margin for error.
