Electronics Manufacturing worked example
Wafer Cost Per Die with total wafer lot cost of 312,500 $: a worked example
This scenario runs the wafer cost per die calculation on the strong side: total wafer lot cost of 312,500 $, with every other input held at its documented default. a semiconductor estimator needs a good-die cost from wafer lot cost and yield
The inputs for this scenario
- Total wafer lot cost: 312,500 $ (raised for this scenario; the documented default is 125,000)
- Good die count: 48,200 die (unchanged)
- Conversion or allocation factor: 1 x (unchanged)
Working through the calculation
- Applying the documented formula (Unadjusted cost per good die = total wafer lot cost รท good die count) to the inputs above produces each figure below.
- At this operating point the engine returns 6.48 $ / die for wafer cost per good die, the number this scenario is built around.
- At this operating point the engine returns 6.48 $ / die for unadjusted cost per good die.
- At this operating point the engine returns 1 x for conversion or allocation factor.
- At this operating point the engine returns 48,200 die for good die count.
How this compares with the baseline
- Against the tool's baseline example, where total wafer lot cost sits at 125,000 $ and the headline result is 2.59 $ / die, this scenario comes in 150% above the baseline at 6.48 $ / die.
- Use it for cost roll-ups, pricing floors, make-vs-buy decisions, and quantifying the dollar value of a yield improvement. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.
Results at a glance
- Wafer cost per good die: 6.48 $ / die (headline result)
- Unadjusted cost per good die: 6.48 $ / die
- Conversion or allocation factor: 1 x
- Good die count: 48,200 die
Run it with your numbers
- Every input above is editable in the live Wafer Cost Per Die calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.