Fab desk

Where the money actually goes in a fab

Published 3 August 2026. Facts verified to 27 July 2026 unless dated otherwise.

A headline investment number tells you almost nothing about what is being built. The split between tools and building is the number that matters, and it is consistently misunderstood.

The basic split

Fab capital divides into three broad buckets: process equipment, facility construction including the cleanroom and utility systems, and everything else, land, engineering, commissioning and working capital. Equipment dominates. The tools that deposit, pattern, etch, implant and measure are individually expensive and collectively enormous, and a fab buys hundreds of them.

This has an immediate consequence for interpreting news. When a project announces a very large investment figure, most of that money is destined for equipment suppliers, largely abroad. Local construction contracts, while substantial in absolute terms, represent the smaller share. Regional economic expectations should be calibrated accordingly.

Why the building is still not cheap

The facility share is smaller only by comparison. Fab buildings carry massive vibration-resistant structures, enormous mechanical systems, cleanroom fit-out, ultrapure water plants, gas yards, chemical distribution and abatement. These are specialised construction scopes, and they are where a domestic contracting industry genuinely participates, as our supplier page discusses.

The operating cost that follows

Capital is only the entry ticket. Fabs then run continuously, consuming power, ultrapure water, gases and chemicals, and employing maintenance-heavy operations. Depreciation on that equipment base is the dominant line in fab economics, which is why utilisation matters so much: an idle fab still depreciates. This is also the honest reason mature-node fabs compete hard on cost, a dynamic our nodes page treats without romance.

Reading Dholera's number properly

The Rs 91,000 crore figure attached to the Tata and PSMC plant DURABLE should be read as a full project cost dominated by equipment, spread over a multi-year build and ramp, not as a construction contract or an annual spend. Our capital ledger records it as confirmed and building, and keeps it visibly separate from announcement-stage figures that have no such structure behind them.

Why this distinction matters publicly

Large numbers get repeated without structure, and structureless numbers are how expectations get set badly, locally and politically. A region that understands its fab investment is mostly an imported equipment order will set realistic expectations about local contracting, and will focus on the part it can genuinely capture: services, utilities, logistics and the long operating tail.