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Why the Global Chip Shortage Is Hard to Overcome

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A single fire at a factory in Japan can still stall an assembly line in Detroit months later.

The chip shortage that started rippling through automakers and electronics makers in late 2020 hasn’t eased by the middle of 2021 — if anything, it’s gotten more complicated. The Wall Street Journal’s breakdown of why the shortage is so hard to fix lands on one core truth: this isn’t a problem you can solve by simply telling factories to make more chips. It’s a problem baked into how semiconductors are actually built, where they’re built, and how long that process takes.

• The shortage traces back to a collision of pandemic work-from-home demand, automaker miscalculations, the Texas winter freeze, a fire at Renesas’ Japanese plant, and drought conditions in Taiwan.
• A new advanced fabrication facility costs billions of dollars and takes years to build, while the chipmaking process itself runs through hundreds of precise photolithography steps stretched over months.
• More than 75% of global chip manufacturing is concentrated in Taiwan, South Korea, and China, prompting TSMC and Intel to announce domestic expansion plans and pushing the U.S. government toward a $52 billion semiconductor initiative.

Supply Expansion Fails Immediate Solution

Chipmakers can’t just flip a switch and increase output the way a factory might add a second shift on a car line. Building a new fab from the ground up runs into the billions of dollars and takes multiple years before it produces a single usable chip. Even once a plant exists, the manufacturing itself is a slog — hundreds of photolithography steps, each requiring extreme precision, spread across several months per batch of wafers.

That timeline mismatch explains why the shortage has dragged on so much longer than a typical supply hiccup. Automakers that cut chip orders early in the pandemic, expecting a demand crash, instead watched consumer electronics and work-from-home hardware soak up the capacity they gave up — and by the time they tried to get back in line, there was no way to simply reorder their way out of it.

The Chain of Disruptions That Made It Worse

On top of the underlying capacity crunch, a string of unrelated disasters piled on. The February freeze in Texas knocked out power to major fabs run by companies like Samsung and NXP. A fire at a Renesas Electronics factory in Japan — a key supplier of automotive chips — took a facility offline for weeks. And a drought in Taiwan, home to the world’s most advanced chip production, strained the enormous water supply that fabrication plants depend on for cleaning silicon wafers.

Each of those events on its own would have been a manageable setback. Stacked together during an already-tight market, they turned a supply squeeze into a full-blown shortage that automakers, game console makers, and appliance manufacturers are all still fighting through.

The Geography Problem

Underneath all of it sits a structural issue the industry has known about for years: chip manufacturing is heavily concentrated in East Asia. Taiwan, South Korea, and China together account for more than 75% of global production, with Taiwan Semiconductor Manufacturing Co. alone producing the vast majority of the world’s most advanced chips.

More than 75% of the world’s chip manufacturing runs through Taiwan, South Korea, and China.

That concentration is exactly why a single fire, freeze, or drought can knock global supply chains sideways. It’s also why fixing the shortage now is inseparable from the bigger question of where future capacity gets built.

The Build-Out Response

TSMC and Intel have both announced plans to expand fabrication capacity outside their traditional home turf, including new U.S.-based facilities, as part of a longer-term push to spread manufacturing risk. On the policy side, the U.S. government has been advancing a $52 billion initiative aimed at boosting domestic semiconductor production and cutting reliance on overseas fabs for the chips that power everything from pickup trucks to laptops.

None of that changes the math in the near term, though — the years-long lead time on new fabs means any capacity added today doesn’t show up on a production line until well down the road.

Until those new fabs actually come online, the shortage stays a waiting game measured in quarters, not weeks — and automakers cutting production shifts this summer are proof the wait isn’t close to over.