SemiconductorX > Fab & Assembly > UMC Fab 12A (N28/N40)
UMC Fab 12A (N28/N40)
[Last updated: Apr 2026]
This semiconductor fab is located in Tainan, Taiwan.
| Fab: | UMC Fab 12A (N28/N40) Gigafactory |
| Company: | UMC |
| Owner: | UMC |
| City: | Tainan |
| State: | Tainan |
| Country: | Taiwan |
| Geopolitical: | Taiwan Strait Risk (HIGH risk) | Node/Line: | 28-40nm |
| Category: | Mature |
| Wafer size: | 300.00 nm |
| Product: | 5G RF, automotive, consumer SoCs |
| Fab type: | Logic |
| Status: | Operational |
| Capacity: | 80 kWSPM |
| Customers: | Qualcomm, MTK, NXP, Marvell |
Notes: Second-largest Taiwanese foundry; no leading-edge ambition; stable mature node
source: UMC annual report