foundry model

The foundry model is a business structure where semiconductor manufacturing is sold as a service to chip-design customers. **The model converts fabs into platforms.** A foundry is not merely renting cleanroom space; it provides process design kits, design rules, device models, standard-cell libraries, SRAM compilers, reliability data, mask operations, and manufacturing feedback. Customers build products on top of that platform without owning the factory. | Platform element | Customer value | Foundry burden | |---|---|---| | PDK and design rules | Lets designers target a real process | Must stay accurate across process revisions | | IP ecosystem | Speeds SoC integration | Requires qualification and support | | Wafer capacity | Turns designs into silicon | Requires enormous capital spending | | Yield learning | Improves cost and reliability | Requires data, process control, and customer collaboration | **The strategic edge is trust.** The best foundries make customers feel that their IP, schedules, and product roadmaps are protected, while also delivering wafers at the yield and cadence the business case assumed.