Fab Facilities

A fab is not a factory. It is an industrial complex — continuously operating, drawing more electricity than most mid-sized cities, processing millions of gallons of ultrapure water per day, executing hundreds of process steps with nanometer-level tolerance control. And no two fabs are the same. A SiC power fab and a leading-edge logic fab share vocabulary — lithography, etch, deposition — but almost nothing else. Different substrates, different tools, different chemistries, different tolerances, different economics, different vendor supply chains.

Fab Facilities is organized into three categories: wafer fabs (the front-end transformation facilities), packaging and test operators (OSAT and captive), and the emerging standalone test facility layer.

Wafer Fabs — the wafer fabrication facility landscape. Fab archetypes, geographic distribution, operator profiles, CHIPS Act and EU Chips Act buildout status, individual fab profile pages.

Packaging & Test Operators — OSAT and captive packaging. ASE, Amkor, JCET, Powertech, Tongfu, Huatian at the merchant level; TSMC CoWoS, Samsung I-Cube, Intel Foveros at the foundry-captive level.

Test Facilities — standalone and co-located test facilities. Emerging as a distinct layer as HBM and advanced SoC test requirements exceed traditional OSAT capacity.

Fab Archetypes — Why a Fab Is Not a Fab

Semiconductor fabs partition into distinct archetypes that share vocabulary but operate as fundamentally different industrial systems. A SiC boule growth and device facility cannot produce a leading-edge logic chip regardless of capital invested — the substrate physics, tool configuration, and process chemistries are incompatible. The table below maps the major fab archetypes that define the global manufacturing landscape, each a separate supply chain and a separate strategic story.

The rad-hard and rad-tolerant archetype has structural properties that distinguish it from the other eleven. Production is almost entirely US-based and accreditation-gated — the DoD Defense Microelectronics Activity (DMEA) runs the Trusted Foundry program that qualifies suppliers to handle classified designs for defense and intelligence customers. Space-grade and defense-grade parts are qualified under QML-V (space) and QML-Q (military) tiers of MIL-PRF-38535. Europe has a parallel regime (ESCC) with a much smaller operator base. The customer pool is sovereign-coupled (DoD, NASA, NRO, DOE, commercial space primes) rather than commercial, and process nodes are typically mature (90–250nm) because radiation hardening is better characterized at larger geometries. The SpaceX Terafab AI7/D3 program is the most credible emerging path to radiation-tolerant inference compute at LEO constellation scale.

Packaging & Test Operators

Packaging and test facilities are distinct from wafer fabs — different operators, different equipment, different economics. The OSAT (Outsourced Semiconductor Assembly and Test) landscape handles the bulk of the back-end value chain, with captive packaging at leading-edge foundries (TSMC CoWoS, Intel Foveros, Samsung I-Cube) increasingly handling the most advanced work. The table below maps the packaging operator landscape.

Notable Fab Facilities List

The fab database below covers logic foundries, memory fabs, SiC device fabs, compound semiconductor fabs, specialty analog fabs, rad-hard foundries, and advanced packaging facilities globally. Filter by fab type, country, process node, wafer size, operational status, or CHIPS Act/subsidy status. Last updated: April 2026.

Geographic Concentration — Key Supply Chain Facts

The following concentration facts establish the baseline supply chain risk profile of the global fab landscape. These are the most supply-chain-significant concentration points across all fab types.

Taiwan accounts for approximately 90% of global sub-5nm logic production (TSMC Hsinchu and Taichung) and a significant share of sub-7nm capacity. Samsung Pyeongtaek and Hwaseong in South Korea account for approximately 50-55% of global HBM production and a significant share of leading-edge DRAM and NAND. South Korea overall accounts for approximately 70% of global memory semiconductor production. China accounts for approximately 80% of global GaAs and GaN compound semiconductor substrate production (gallium supply) and approximately 80% of global refined gallium - the upstream material for GaAs, GaN, and InP devices. The United States accounts for approximately 10-12% of global semiconductor manufacturing value added, a share that the CHIPS Act is designed to increase toward 20% by 2030.

The most acute single-point concentrations are: TSMC Fab 18 (Hsinchu) for N3/N3E leading-edge logic; SK Hynix M16 (Icheon) for HBM3e and HBM4; WIN Semiconductors (Taiwan, Taoyuan) for GaAs foundry services; GlobalFoundries Fab 9 (Malta NY) for SiGe BiCMOS at mmWave-capable process nodes; Wolfspeed Durham NC for Western SiC substrate growth; BAE Systems Manassas VA for US rad-hard processor manufacturing; and Sony Semiconductor Kumamoto for flagship-tier CMOS image sensors. Each of these represents a supply chain dependency that affects multiple sectors and cannot be substituted on timescales shorter than 2-4 years even with unlimited capital.

Related Coverage

Fab Clusters | Nanofab List | Process Nodes & Lines | U.S. Reshoring | Wafer Fab Equipment | Bottleneck Atlas