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Lam Research makes the machines that build computer chips, selling them to the factories that manufacture chips.
Lam Research makes the giant, wildly complicated machines that build computer chips. It doesn't design chips and it doesn't sell chips. It sells the equipment that chip factories run around the clock, plus the services and spare parts that keep those machines alive.
The core of the business is a process called etching. To make a chip, you build up and carve away microscopic layers of material on a silicon wafer, and etching is the carving. Lam's machines use charged gas, called plasma, to cut patterns billions of times finer than a human hair. It also sells machines that deposit thin films onto wafers — basically the opposite of carving — plus equipment for cleaning and preparing wafers, and for packaging finished chips. The company's engineers have to push all of this to the edge of physics, which is exactly why chipmakers pay up. Who pays? The big chip manufacturers — companies like TSMC, Samsung, Intel, and Micron — and they buy when they're building new factories or upgrading existing ones. That makes Lam a "picks and shovels" business: it doesn't care much whether memory chips or logic chips win, it gets paid when someone builds capacity. The interesting wrinkle is that the most advanced chips — the ones in AI data centers — are memory-heavy and packing-heavy, and that's pushing more of the chipmaking workload toward the exact steps Lam is best at. Revenue hit roughly $16–17 billion in the most recent fiscal year, up sharply from the prior year. Lam competes mainly with Applied Materials and Tokyo Electron, and the rivalry is technical and brutal. Its edge comes from decades of process know-how, a huge installed base that generates steady service revenue, and customer trust built over many chip generations. The vulnerability is that this is a cyclical business tied to chipmakers' spending moods — when factories pause, orders dry up fast. There's also the geopolitical piece: the U.S. has restricted sales of advanced chipmaking equipment to China, a meaningful market, which adds real uncertainty to the outlook.
Lam is an American company, based in Fremont, California, and it returns a lot of cash to shareholders — paying a dividend and buying back stock. It's also known for a striking piece of company history: it started in 1980 as a small spinout from a semiconductor company, nearly went under in the 1980s downturn, and clawed its way up to become one of the most important equipment makers in the world.
Saved answer · last researched 19 Oct 2026