STMicro aims $3B space chips

Space chips used to mean tiny volumes, long mission cycles, and brutally expensive parts. That is still true for deep-space probes and government payloads. But low-Earth-orbit satellite networks changed the math — suddenly the market wants space-qualified silicon in huge batches, fast, and at costs that look more like telecom hardware than classic aerospace. That is the backdrop for STMicroelectronics saying on May 4 that it expects well above $3 billion in cumulative revenue from its space business between 2026 and 2028. ### Why is this a real shift? The big change is volume. ST says revenue tied to LEO programs climbed from $175 million in 2021 to $600 million in 2025 — a 243% jump in four years. That is not a science-project curve. That is what happens when satellite constellations move from demos into industrial rollout. ### What is ST actually selling? Not just one chip. ST says it co-designs and manufactures custom silicon used in satellites, user terminals, and gateways. In Starlink’s case, the company says its BiCMOS technology is a key part of the user terminal, and that the partnership has already produced billions of chips used across millions of terminals and more than 10,000 satellites. ### Why does Starlink matter so much here? Because Starlink is the proof that this market can scale. A lot of “space economy” talk stays fuzzy. This one doesn’t. ST is already shipping into a live, giant constellation with real ground equipment and constant replenishment demand. That makes the company’s target feel less like a moonshot and more like an extrapolation from an existing manufacturing relationship. ### What changed in the chip itself? Basically, the industry stopped assuming every space chip had to be built for a 15-year heroic mission. ST’s own space business now spans both traditional radiation-hardened parts and newer products tailored for LEO systems. On io reward cheaper, shorter-life components if they can survive long enough in orbit. ### So is this only about Europe’s space market? No. ST is a European company, but the demand story is global. The company says the 2026-2028 target includes both traditional space and LEO, including broadband and direct-to-device applications. It also says it is looking at user-terminal development in China, even while export restrictions limit what it can contribute to Chinese satellites themselves. ### How big is ST in this niche? ST says it held more than 90% share of the LEO semiconductor market in 2025. That number should be read carefully — market definitions in new industries can get slippery. But even as a directional signal, it says something important: ST thinks it is not just participating in the boom. It thinks it is the incumbent component supplier inside it. ### Why should anyone outside space care? Because this is really a story about where semiconductor growth is coming from. Phones and PCs are mature. Cars are cyclical. AI data centers get all the attention. But satellite broadband, direct-to-device links, and defenspecific engineering stack, and ST already has it. ### Bottom line? STMicro is betting that “space semiconductor” stops being a boutique category and starts looking like infrastructure. If that happens, the winners will not just be rocket companies. They will be the chipmakers already buried inside the terminals, satellites, and network gear that make the constellation work.