Semiconductor Advanced Packaging & Test worked example

Test Program Workload at 12% setup, handler, and index-time allowance: a worked example

Push setup, handler, and index-time allowance up to 12% and the picture changes. This example computes every intermediate figure at that operating point. Use it when test program workload in semiconductor advanced packaging and test needs a defensible run time before a quote goes out.

The inputs for this scenario

  • Devices queued for this test program: 120 units (unchanged)
  • Tester throughput at socket: 12 units / min (unchanged)
  • Setup, handler, and index-time allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base test program workload time = test program workload workload รท test program workload completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required test program workload time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base test program workload time.
  • At this operating point the engine returns 12 % for test program workload allowance applied.
  • At this operating point the engine returns 12 pieces / min for test program workload completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where setup, handler, and index-time allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • It computes the required test-cell time for a device lot from queued units, per-minute tester throughput, and a setup/handling allowance. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Required test program workload time: 11.2 hr (headline result)
  • Base test program workload time: 10 hr
  • Test program workload allowance applied: 12 %
  • Test program workload completion rate: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Test Program Workload calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.