Yield

Yield is the share of manufactured chips that come out good and usable rather than defective. It is what quietly converts a fab's nominal capacity into real, affordable output: a line can run at full tilt, but if too many dies come off broken, the effective supply and the cost per working chip both suffer. This is why the model calls yield invisible capacity — it expands or shrinks the usable total without a single new wafer. It matters more than ever now because AI accelerators use very large dies and stacked packages, where a single flaw can spoil a big, expensive part.

If yield runs short on those large dies, effective supply falls sharply and cost climbs, tightening the whole accelerator pipeline without any visible loss of factory floor. The firms exposed here are the ones that police defects and keep processes clean — inspection and metrology names like Lasertec, Camtek and Nova, contamination-control and materials suppliers such as Entegris and Shin-Etsu, and process-equipment makers like ASM International. Their tools are what stand between raw capacity and salable chips.