Semiconductor Advanced Packaging & Test worked example

Chiplet Assembly Yield at 68% target chiplet assembly yield rate: a worked example

Suppose target chiplet assembly yield rate falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate chiplet assembly yield for semiconductor advanced packaging and test using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Good chiplet assemblies passing final AOI: 8 count (held at the documented default)
  • Total chiplet assemblies attempted on the module: 250 count (held at the documented default)
  • Target chiplet assembly yield rate: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Chiplet assembly yield rate = chiplet assembly yield count ÷ total chiplet assembly yield population × 100.
  • Chiplet assembly yield rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Chiplet assembly yield gap to target works out to 64.8 points at these inputs.
  • Chiplet assembly yield count works out to 8 count at these inputs.
  • Total chiplet assembly yield population works out to 250 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target chiplet assembly yield rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • It computes the percentage of chiplet assemblies that pass out of the total attempted, plus how many points that rate sits above or below your target. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Chiplet assembly yield rate: 3.2 % (headline result)
  • Chiplet assembly yield gap to target: 64.8 points
  • Chiplet assembly yield count: 8 count
  • Total chiplet assembly yield population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Chiplet Assembly Yield calculator, set target chiplet assembly yield rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.