The EUV Lithography Saga From Innovation to Global Power Play You know, in this fast-paced world of technology, where our phones get smarter every year and AI is taking over everything from chatting to driving cars, there is one machine that sits quietly at the heart of it all. That is the EUV lithography machine . It is like the unsung hero of the semiconductor industry, making those tiny chips that power our gadgets. But lately, it has become a big deal in global politics too, especially with the US and China going head-to-head over tech supremacy. Let To give you a sense, here is what an ASML EUV machine looks like during assembly. First off, what exactly is an EUV lithography machine ? EUV stands for Extreme Ultraviolet lithography, and it is a super-advanced way to print tiny patterns on silicon wafers to make integrated circuits, or chips as we call them. These machines use extreme ultraviolet light with a wavelength of just 13.5 nanometres to etch circuits that are incredibly small, like ten billion transistors on something the size of your fingernail. Imagine trying to draw a map of an entire city on a grain of rice, Now, how does this beast actually work? It is not simple, mind you. The process starts with generating EUV light, which is tricky because at 13.5 nanometres, it is invisible to us and gets absorbed by almost everything, including air. So, the whole thing happens in a vacuum. The light source is usually a laser-produced plasma. Here is how it goes: a powerful carbon dioxide laser blasts tiny droplets of molten tin, about 25 micrometres in size, at speeds up to 300 kilometres per hour. When the This image shows the inner workings of an EUV system without covers, highlighting the complex optics and vacuum chambers. Why is EUV so important? Well, it is the key to keeping Moores Law alive. Without it, we could not make chips smaller, faster, and more energy-efficient. Think about it, todays AI models, like those running on Nvidia GPUs, need chips with billions of transistors packed tightly. EUV makes that possible, enabling nodes like 5nm, 3nm, and even 2nm. It cuts costs for chipmakers by simplifying the process, no more multiple patterning with older DUV machines, which was like doing the same job four Let us go back in time to see who built it first. The roots of EUV go to the 1970s with multilayer mirror research in Russia, but the real push came in the mid-1980s in Japan. Hiroo Kinoshita, a scientist there, projected the first EUV images, though people did not believe him at first. He had to do it again to prove it. Around the same time, independent work happened in the US and Europe. In 1996, Sandia National Laboratories in the US made the first working device using EUV. But Speaking of monopoly, which country has it? That would be the Netherlands, thanks to ASML . They are the only company in the world making EUV lithography machines , controlling over 90 per cent of the advanced lithography market. No one else, not Canon, not Nikon, has cracked it at this level. ASMLs dominance comes from first-mover advantage, strategic buys like Cymer, and massive investments backed by the US and Dutch governments. They supply to big players like TSMC, Samsung, and Intel, and Now, the big question, how has China built its own EUV machine? For years, China was blocked from buying ASMLs EUV tools due to US export controls starting in 2019. Not a single one has been sold to them. But China did not sit idle. They launched a Manhattan Project-style effort, pouring billions into domestic tech. In early 2025, a team in Shenzhen, including former ASML employees, completed a working prototype of an EUV machine. It is huge, filling a factory floor, and uses possibly What are the geopolitical implications? Oh boy, this is where it gets intense. EUV has become a weapon in the US-China tech war. The US has used export controls to curb Chinas AI and chip ambitions, blocking ASML sales and even servicing. Netherlands and Japan joined in, withholding licences. This forced China to accelerate self-reliance, investing 200 billion dollars in semiconductors. If China succeeds, it breaks the Wests chokehold, boosting their AI chips and military tech. Analysts say it And there is more to it. Looking ahead, if China commercialises EUV, it could make machines cheaper and more efficient, challenging ASML . Innovations like Okinawas energy-efficient EUV could change things too. But challenges remain, China faces IP barriers and high costs. For India, this means opportunities in chip design and assembly, but we need to upskill fast to not get left behind. The EUV story shows how tech is not just about gadgets, it is about power, economies, and the future of
