Semiconductor Advanced Packaging & Test worked example

Wire Bond Workload at 7.2% setup, indexing, and downtime allowance: a worked example

Suppose setup, indexing, and downtime 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 wire bond workload 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

  • Wire bonds to place this lot: 120 units (held at the documented default)
  • Wire bonder throughput (bonds placed): 12 units / min (held at the documented default)
  • Setup, indexing, and downtime 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 wire bond workload time = wire bond workload workload รท wire bond workload completion rate.
  • Required wire bond workload time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base wire bond workload time works out to 10 hr at these inputs.
  • Wire bond workload allowance applied works out to 7.2 % at these inputs.
  • Wire bond workload 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, indexing, and downtime 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 the required wire bonder occupancy time in hours for a lot given its bond count, 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 wire bond workload time: 10.72 hr (headline result)
  • Base wire bond workload time: 10 hr
  • Wire bond workload allowance applied: 7.2 %
  • Wire bond workload completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Wire Bond Workload calculator, set setup, indexing, and downtime allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.