ASML

basicwidespread

A Dutch company that makes machines indispensable for producing the most advanced chips and is the only one in the world able to supply the most modern type.

In plain terms

ASML does not manufacture chips, but the machine with which chips are manufactured. It is like the relationship between a printing house and a printing press: TSMC, Samsung, or Intel are the printing houses, while ASML is the only workshop capable of building the machine that can print the finest letters.

These machines draw circuit patterns on silicon wafers with light, using lines far thinner than one-thousandth of a human hair. The most advanced, so-called EUV machines cost roughly 200–400 million euros each, are as large as a bus, and are shipped to the buyer on several airplanes.

This is important for AI because the cutting-edge chips running large language models are almost all manufactured on such machines. If ASML does not deliver, chipmakers cannot expand production of the most advanced AI chips. This is why a company in a small town in southern Netherlands has become a key player in world politics.

How it works

Inside the machine, a nozzle fires tens of thousands of tiny tin droplets per second, each struck by a powerful laser. The droplet becomes hot plasma, emitting extremely short-wavelength (extreme ultraviolet, EUV) light.
This light would be absorbed by air and glass lenses, so the process takes place in a vacuum, and mirrors instead of lenses guide the light. The mirrors are manufactured by the German company Zeiss.
Light reflects off a mask containing the chip's circuit diagram like a template. In EUV machines, the mask is also a mirror; light does not pass through it. The design is projected in reduced size onto the silicon wafer coated with a light-sensitive layer.
The illuminated pattern is then developed with chemicals in devices from other manufacturers and etched into the wafer. This is repeated layer by layer, dozens of times, until the chip's billions of transistors are completed.
Meanwhile, the machine moves and aligns the wafer with nanometer precision so that the layers stacked on top of each other fit perfectly. ASML engineers continuously maintain the machine on-site.

An everyday example

When you ask an AI assistant something on your phone, the answer is generated in a data center on chips manufactured by ASML machines. Your phone's processor was likely also made on such a machine, meaning you use the company's work without ever encountering its name.

Who is affected

everyoneThe chips in your phone, laptop, and the AI services you use are almost all made on ASML machines, so the company's supply issues can appear in prices and availability.

bank customer, investorASML is one of Europe's most valuable listed companies, so it is included in many equity funds and pension portfolios, and its share price depends heavily on AI investments and export restrictions. → Money

industrial worker, engineerThe chip manufacturing supply chain stretches across Europe, so in the fields of precision engineering, optics, and mechatronics, ASML indirectly provides jobs and orders. → Industry

lawyer, citizenExport of advanced ASML machines requires government permission, so the company well illustrates how technology becomes a trade and security policy issue. → Law

A common misconception

MythASML manufactures chips, so it is a competitor to Nvidia or TSMC.

In realityASML does not manufacture a single chip; it only produces the manufacturing machines. The chipmakers are its customers, not its competitors.

Limits and risks

With EUV machines, ASML is the sole supplier, so any disruption there slows down the entire chip industry and AI development with it.
The company itself depends on thousands of suppliers, with a single partner producing some key components (such as mirrors).
EUV machines cannot be sold to China, and the export of its more advanced older-type (DUV) machines also requires a license. Thus, its business prospects are shaped partly by political decisions, not just market demand.
An ASML machine alone is not enough for chip manufacturing: hundreds of additional steps and years of manufacturing experience are required, so purchasing the machine does not make anyone a leading chipmaker.

Similar, but not the same

TSMC – TSMC is a Taiwanese contract manufacturer that produces chips based on others' designs using ASML machines, while ASML only supplies the machines.
Nvidia – Nvidia designs AI chips but does not manufacture them or build manufacturing equipment.
ASM International – This is another Dutch semiconductor company, a founder of ASML, which is now independent from it and produces different types of manufacturing equipment.

Related concepts

Broader

semiconductor industry, chip manufacturing, AI infrastructure

Narrower

EUV lithography, High-NA EUV, DUV lithography

On the edge

TSMC, Nvidia, GPU, export restriction, Chip war

A brief history

ASML was founded in 1984 as a joint venture by Philips and ASM International, originally named ASM Lithography. Its headquarters are in Veldhoven, the Netherlands. It developed EUV technology for more than two decades before chip factories began using it in mass production around 2019.

Where things stand

ASML's EUV machines are considered essential equipment for cutting-edge chip manufacturing, and the first customers have already deployed the next generation (High-NA EUV). Exports to China remain restricted by export controls.

Status: 2026 November

Also known as

ASML · ASML Holding · ASML Holding N.V. · ASM Lithography · Advanced Semiconductor Materials Lithography · Dutch chip equipment manufacturer · Veldhoven-based chipmaking equipment maker

Sources

This entry was machine-edited and has undergone machine expert review; the “In the news” section updates automatically from Agent Age stories.