The chain, segment by segment

Every one of the 615 companies wafergraph tracks sits in one or more of these 12 value-chain segments, ordered the way material actually moves — raw inputs first, finished AI datacenters last.

  1. Materials — 105 companies. Materials are the physical feedstocks — silicon wafers, photoresists, specialty gases, substrates, and chemicals — that every fabrication process consumes.
  2. Equipment (Front End) — 64 companies. Front-end equipment transforms raw wafers into patterned circuits through deposition, etch, lithography, ion implant, and cleaning steps.
  3. Equipment (Back End) — 25 companies. Back-end equipment handles everything after front-end processing — testing finished wafers and individual dies, dicing, assembly, and final packaging.
  4. EDA & IP — 32 companies. Electronic design automation (EDA) software and semiconductor IP are the invisible foundations of every chip.
  5. Design (Fabless) — 106 companies. Fabless semiconductor companies design chips entirely without owning manufacturing capacity, contracting production to foundries and OSATs.
  6. IDM — 22 companies. Integrated device manufacturers design, fabricate, and sell chips under one roof — the traditional vertically integrated model.
  7. Foundry — 17 companies. Pure-play foundries manufacture chips designed by others, enabling the fabless model.
  8. Memory — 32 companies. Memory chips — DRAM, NAND flash, and the emerging high-bandwidth memory (HBM) used in AI accelerators — are the highest-volume semiconductor category by revenue.
  9. Analog, Power, RF — 87 companies. Analog, power, and RF chips interface between the physical and digital worlds — converting signals, managing power delivery, and handling wireless communication.
  10. OSAT — 22 companies. Outsourced semiconductor assembly and test (OSAT) companies package finished dies into the chips and modules that go into end products.
  11. Distribution & Misc — 59 companies. This segment captures the physical distribution layer — component distributors, electronics manufacturing services (EMS) and ODM companies that build finished AI servers and systems, and photonics companies making optical transceivers.
  12. AI & Data Center — 116 companies. The AI and data-center segment captures the demand side of the semiconductor supply chain — the hyperscalers, GPU clouds, AI labs, data-center REITs, and infrastructure suppliers that consume chips at massive scale.