Research Article
A Simulation Model for Machine Efficiency Improvement Using Reliability Centered Maintenance: Case Study of Semiconductor Factory
Table 2
Occurrence evaluation criteria.
| Effect | Ranking | Criteria: likely failure rate |
| Very high: persistent failures | 10 | Every hour | 9 | Every shift |
| High: frequent failures | 8 | Every day | 7 | Every week |
| Moderate: occasional failures | 6 | Every month | 5 | Every 3 months | 4 | Every 6 months |
| Low: relatively few failures | 3 | Every year | 2 | Every 2 years |
| Remote: failure is unlikely | 1 | Every 5 years |
|
|