| Item | Area | Frequency | |||
|---|---|---|---|---|---|
| Warehouse | Wafer Sort | Final Test | Assembly | ||
| Temperature | 23C ±4°C | 22C ±4°C | 23C ±3°C | 23C ±3°C | Daily 6 hours |
| Humidity | 50% ±10% | 45% ±10% | 50% ±10% | 50% ±10% | Daily 6 hours |
| Cleanliness (ISO 14644-1) |
NA | ISO Class 6 | ISO Class 8 | FOL ISO Class 6 EOL ISO Class 7 |
Class 8：Quarterly Class 7：Monthly Class 6：Weekly |