The vendor economy behind semiconductor fabs
- Roughly two-thirds to three-quarters of a fab's capex is imported wafer-fab equipment (ASML, Applied Materials, Lam, Tokyo Electron, KLA); India's capture is the remaining third.
- That third — cleanroom construction, industrial gases, ultrapure water, chemicals, logistics and equipment servicing — is where reusable domestic capability is actually built.
- The test is whether each fab leaves a deeper vendor ecosystem that lowers the cost of the next, or merely a building.
- Roughly two-thirds to three-quarters of a fab's capex is imported wafer-fab equipment (ASML, Applied Materials, Lam, Tokyo Electron, KLA); India's capture is the remaining third.
- That third — cleanroom construction, industrial gases, ultrapure water, chemicals, logistics and equipment servicing — is where reusable domestic capability is actually built.
- The test is whether each fab leaves a deeper vendor ecosystem that lowers the cost of the next, or merely a building.
A fab's headline number flatters the local economy. Of the roughly Rs 91,000 crore committed to a mature-node fab, the majority does not stay in India. It flows to the handful of global firms that make the tools — ASML for lithography, Applied Materials, Lam Research and Tokyo Electron for deposition, etch and processing, and KLA for inspection and metrology. Process equipment is typically the largest line in fab capex, often two-thirds to three-quarters of the total.
This is not a criticism; no country, including the most advanced, makes the full set of wafer-fabrication equipment domestically. But it reframes what India is buying with a fab. The wafer-fab-equipment portion is imported capability. The Indian-capture economy lives in the remaining third — and in what that third builds that lasts beyond the single project.
Where India actually captures value
That remaining third is substantial and strategically useful: cleanroom construction and the specialist civil and services trades it trains; industrial and electronic gases and the on-site plants that supply them; ultrapure-water systems; chemicals and slurries; precision logistics and bonded warehousing; facilities management, calibration and equipment-servicing skills. These are lower-glamour than lithography, but they are real industrial capabilities, reusable across fabs, OSATs and other advanced manufacturing, and they are where domestic suppliers can genuinely compete.
The strategic question is whether each fab leaves behind a deeper vendor ecosystem or merely a building. If gas, ultrapure-water, chemical and equipment-service firms localise around the first fabs, the second and third cost less and ramp faster, and the capability compounds. If every fab imports its inputs and flies in its service engineers, capture stays at one-third and never deepens. This is the same assembly-versus-ecosystem distinction that runs through our other work.
The signal to watch
- Whether industrial-gas, ultrapure-water and chemical suppliers build local plants around the first fabs, or supply from imports.
- The share of equipment installation, calibration and servicing performed by Indian engineers versus flown-in vendor teams.
- Cleanroom-construction and specialist-trades capacity that persists between projects.
- Whether vendor localisation lowers the capex and ramp time of the second and third fabs.
The lithography tools will be imported for the foreseeable future; that is true everywhere. The measure of success is not the tool bill but whether the one-third India does capture compounds into a vendor ecosystem that makes the next fab cheaper — or evaporates when the contractors leave.
Track the systems we watch
Signals, reports and briefings on India’s industrial transformation.