Semiconductor Advanced Packaging & Test worked example

Package Inspection Load at 7.2% setup, handling, and reject-review allowance: a worked example

Suppose setup, handling, and reject-review allowance falls to 7.2%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate package inspection load for semiconductor advanced packaging and test using production-ready inputs so teams can plan labor hours, schedule the work, or check whether the job fits the available shift time.

The inputs for this scenario

  • Packages to inspect this lot: 120 units (held at the documented default)
  • Inspection throughput (packages checked): 12 units / min (held at the documented default)
  • Setup, handling, and reject-review allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base package inspection load time = package inspection load workload รท package inspection load completion rate.
  • Required package inspection load time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base package inspection load time works out to 10 hr at these inputs.
  • Package inspection load allowance applied works out to 7.2 % at these inputs.
  • Package inspection load completion rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where setup, handling, and reject-review allowance sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • It computes required package-inspection time in hours from package count, inspection throughput, and an allowance uplift. 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

  • Required package inspection load time: 10.72 hr (headline result)
  • Base package inspection load time: 10 hr
  • Package inspection load allowance applied: 7.2 %
  • Package inspection load completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Package Inspection Load calculator, set setup, handling, and reject-review allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.