TSM

You will never see TSMC's product in a data center. By the time a chip reaches a server rack, TSMC's work is already embedded inside it — the silicon die itself, fabricated in one of the most expensive and precise manufacturing environments ever built.

TSMC's fabs sit in science parks across Taiwan — Hsinchu, Tainan, Kaohsiung — along with expanding facilities in Kumamoto (Japan), Phoenix (Arizona), and Dresden (Germany). Each fab is a multi-billion-dollar complex containing cleanrooms where the air is thousands of times cleaner than an operating theater. Inside those cleanrooms, silicon wafers — thin circular discs about 300mm (12 inches) in diameter — move through over 1,000 processing steps over 2–3 months. Each step deposits, etches, or patterns a layer of material measured in atoms. A single wafer emerges containing hundreds of individual chips, each with billions of transistors.

TSMC also operates the world's largest CoWoS (Chip-on-Wafer-on-Substrate) advanced packaging capacity. CoWoS bonds GPU dies to HBM memory stacks on a silicon interposer — a precision base plate the size of a dinner plate. This packaging step has been the tightest bottleneck in the AI chip supply chain since 2024.

TSMC was founded in 1987 and created the foundry model — the idea that one company could specialize in manufacturing chips that other companies design. For decades, this was a steady business. AI changed the economics. NVIDIA's Blackwell GPU is not just a chip — it is two GPU dies and eight HBM memory stacks bonded together on a CoWoS interposer. Only TSMC can manufacture and package this at scale. Full-year 2025 revenue reached $122.9B, up 35.9% YoY. HPC (which includes AI accelerators, server CPUs, and networking chips) accounted for 58% of full-year revenue and 61% of Q1 2026 revenue — surpassing smartphones as the dominant segment on a sustained basis. NVIDIA has displaced Apple as TSMC's largest customer by revenue.