Semiconductor Advanced Packaging & Test worked example

Wire Bond Workload at 12% setup, indexing, and downtime allowance: a worked example

This scenario runs the wire bond workload calculation on the strong side: 12% setup, indexing, and downtime allowance, with every other input held at its documented default. Use it when wire bond workload in semiconductor advanced packaging and test is changing rate or allowance and you want to see the impact.

The inputs for this scenario

  • Wire bonds to place this lot: 120 units (unchanged)
  • Wire bonder throughput (bonds placed): 12 units / min (unchanged)
  • Setup, indexing, and downtime allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

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

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 1.82% above the baseline at 11.2 hr.
  • Use it when planning bonder capacity, quoting assembly lead time, or checking whether a lot fits inside a shift on a single bond head. 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

  • Required wire bond workload time: 11.2 hr (headline result)
  • Base wire bond workload time: 10 hr
  • Wire bond workload allowance applied: 12 %
  • Wire bond workload completion rate: 12 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.