THE TINY INGREDIENT THAT CAN SHUT DOWN A $100 BILLION INDUSTRY
It is a gas that makes up only about 0.0018% of the atmosphere. Yet without high-purity neon, one of the most important machines in chip manufacturing cannot work properly.
You've probably heard of:
TSMC.
NVIDIA.
Apple.
Samsung.
ASML.
But almost nobody talks about neon.
And that's strange.
Because semiconductor factories need it to operate some of the lasers used to manufacture chips.
A tiny input can sit at the beginning of an enormous supply chain.
And when that tiny input suddenly becomes difficult to obtain, the consequences can travel much further than anyone expects.
NEON ISN'T JUST FOR BRIGHT SIGNS
Most people associate neon with glowing signs.
That is probably the least important part of the story.
In semiconductor manufacturing, high-purity neon is used in excimer laser gas mixtures.
These lasers produce specific wavelengths of ultraviolet light used in photolithography—the process of transferring microscopic circuit patterns onto silicon wafers.
So the chain looks something like:
Neon
↓
Excimer gas
↓
Laser
↓
Photolithography
↓
Silicon wafer
↓
Computer chip
The amount of neon involved may be tiny.
The dependency isn't.
THE STRANGE PART IS WHERE NEON COMES FROM
Neon isn't usually mined from the ground like iron or copper.
It exists in the atmosphere.
But there is so little of it that producing commercial quantities requires enormous air-separation facilities.
The process involves cooling and compressing air until its different components can be separated.
Only the largest air-separation units typically have systems capable of capturing neon commercially.
And historically, some of these facilities were connected to another industry:
steelmaking.
Neon could be captured as a byproduct of the process used to produce large amounts of oxygen for steel production.
That created a strange supply chain:
Steel industry
↓
Air separation
↓
Neon
↓
Semiconductor industry
A gas needed for advanced chips could therefore depend partly on infrastructure built for an entirely different industry.
THEN UKRAINE BECAME CRITICALLY IMPORTANT
By 2022, Ukraine was estimated to supply around 50% of the world's neon.
It was particularly important for semiconductor-grade neon.
Two Ukrainian companies, Cryoin and Ingas, were major suppliers.
Then Russia invaded Ukraine.
The disruption wasn't theoretical.
USITC research reported that both companies had been unable to continue production as of March 11, 2022.
Suddenly, semiconductor manufacturers had a problem.
They weren't short of silicon.
They weren't short of computers.
They were potentially short of a gas.
THIS HAD HAPPENED BEFORE
The semiconductor industry had already experienced a warning.
After Russia's 2014 occupation of Crimea, Ukrainian neon supplies were disrupted.
Neon prices reportedly increased by more than 600% as the market tightened.
Chipmakers responded by trying to recycle more of the gas and by looking for alternative supplies.
The lesson should have been obvious:
A tiny supplier concentration can become a huge manufacturing risk.
But rebuilding capacity isn't as simple as opening another factory next week.
WHY CAN'T THEY JUST BUY NEON SOMEWHERE ELSE?
They can.
Eventually.
But semiconductor manufacturing has an unusual problem:
Purity matters.
A chip factory doesn't simply need "neon."
It needs neon that meets extremely demanding specifications.
And changing suppliers isn't instant.
USITC research noted that qualifying a new source of semiconductor-grade gas can take 3 to 18 months.
If a manufacturer changes suppliers, the qualification process has to be repeated.
That means the supply chain has friction built into it.
Even if another supplier technically exists, you cannot necessarily switch tomorrow morning.
THE $100 BILLION QUESTION
This is where the story becomes much bigger than neon.
The semiconductor industry is enormous.
And chips sit inside countless other industries:
Smartphones
↓
Computers
↓
Cars
↓
Servers
↓
Data centers
↓
Industrial equipment
↓
AI systems
A shortage of one specialized input can therefore move through several layers of the economy.
The neon shortage did not literally shut down the entire semiconductor industry.
But it exposed something more interesting:
The industry's vulnerability to materials that most people have never heard of.
USITC described neon as a critical input for semiconductor lasers and specifically highlighted the risk that disruption could affect the semiconductor value chain.
THE INDUSTRY STARTED RECYCLING IT
One response was surprisingly simple:
Use less new neon.
Chip manufacturers and gas suppliers had already developed ways to recover and recycle neon.
When prices jumped and supply became uncertain, improving recycling became economically much more attractive.
A gas that was previously treated as a relatively inexpensive industrial input suddenly became something worth recovering.
The economics changed:
Cheap input
↓
Little incentive to recover every molecule
↓
Supply shock
↓
Higher value
↓
More recycling
That's a classic supply-chain reaction.
NEW SUPPLIERS ALSO BECAME MORE IMPORTANT
The crisis pushed companies and governments to think about something they normally don't think about when buying industrial gases:
Where exactly does this material come from?
A company might have a contract with a supplier.
But that supplier has its own suppliers.
And those suppliers may depend on another industry.
And that industry may depend on a particular country.
So the real supply chain can be much deeper than the invoice suggests.
That's why USITC research described neon as a vulnerability in the semiconductor global supply chain.
THE MOST INTERESTING PART: NEON ISN'T EXPENSIVE BECAUSE IT IS RARE
Neon is rare in the atmosphere.
But scarcity alone doesn't explain its strategic importance.
The real problem is the combination of:
Low atmospheric concentration
Specialized production
High purity requirements
Limited qualified suppliers
Difficult supplier switching
=
A potential bottleneck
That's what makes tiny ingredients dangerous.
Not necessarily how much of them a product contains.
But how difficult they are to replace.
THE PHONE HIDES THE ENTIRE STORY
Imagine holding a smartphone.
Inside it are advanced chips manufactured through dozens of highly specialized processes.
Those processes depend on:
And somewhere inside that chain is neon.
You don't see it.
You don't touch it.
You don't think about it.
But it helps generate the laser light used in part of the manufacturing process.
That's the strange economics of modern technology.
ONE TINY INPUT CAN HAVE ENORMOUS LEVERAGE
A company might spend billions designing a new semiconductor factory.
It might buy hundreds of millions of dollars of equipment.
It might employ thousands of people.
But if a specialized input becomes unavailable, some part of the process can become constrained.
The input itself doesn't need to be worth billions.
It only needs to be hard to replace.
That's the difference between:
Expensive
and
Strategically important.
They are not the same thing.
MAACAT PERSPECTIVE
The modern economy is full of products that look enormous from the outside.
Smartphones.
Cars.
AI data centers.
Aircraft.
Factories.
But underneath them are thousands of tiny dependencies.
A specialized gas.
A rare material.
A particular chemical.
A specific machine.
A single supplier.
Most of the time, nobody notices them.
Until something goes wrong.
That's when the value of the invisible supply chain becomes obvious.
The most important ingredient in a $100 billion industry doesn't always have to be expensive.
Sometimes it is just the one thing nobody realized they couldn't easily replace.
