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AE Repair Services ROI Calculator
*Please fill in all white boxes. Gray boxes are calculated.
Cost Variable
To enter tool downtime cost by hour, select Cost per Hour. To enter wafer cost, select Cost per Wafer.
Average Wafer Cost (USD)
Enter individual processed wafer cost (USD).
Average Wafers Per Hour
Enter number of wafers processed per hour.
Average Tool Down Time Cost Per Hour (USD)
Calculated value based off wafer cost or tool down time cost.
Mean Time To Repair (MTTR in Hours)
Enter average number of hours a tool is down to replace a failed unit.
Population
Enter total number of installed AE units.
Annual Failure Rate
Use percentage values.
Failures of Unit Population
Calculated value is based off failure rate and unit population.
Average Cost of Unit Repair (USD)
Enter single unit repair cost.
Total Repair Cost for Population (USD)
This is the total investment in unit repair costs.
Average Tool Down Time Cost Per Hour
Calculated value is based off wafer cost or tool down time cost.
Tool Down Time Cost for Population (USD)
Calculated value is based on Failures of Unit Population, Average Tool Down Time Cost Per Hour, and Tool MTTR.
Annual Reliability Cost of Ownership (COO in USD)
Calculated value is based on Total Repair Cost for Population and Total Down Time Cost for Population.
Overall Annual Savings with AE
Shows total cost of operation dollars per unit population saved by using AE repair, as well as percentage saved over use of third-party repair.
