Implantable Electronics & Neurodevices worked example

Final Electrical Test Capacity at 99% final test station uptime: a worked example

This scenario runs the final electrical test capacity calculation on the strong side: 99% final test station uptime, with every other input held at its documented default. Use it when test engineering or production control needs to know whether final electrical or functional test capacity can cover a release plan.

The inputs for this scenario

  • Devices tested per fixture cycle: 4 devices / cycle (unchanged)
  • Planned final test cycles: 96 cycles (unchanged)
  • Final test station uptime: 99 % (raised for this scenario; the documented default is 88)
  • Final electrical test first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross final electrical test capacity = devices tested per fixture cycle × planned final test cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 369 devices for good final electrical test capacity, the number this scenario is built around.
  • At this operating point the engine returns 384 devices for gross final electrical test capacity.
  • At this operating point the engine returns 3.84 devices for final electrical test downtime loss.
  • At this operating point the engine returns 11.4 devices for final electrical test yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where final test station uptime sits at 88% and the headline result is 328 devices, this scenario comes in 12.5% above the baseline at 369 devices.
  • Use it when committing final-test throughput for a build plan or when sizing the impact of a yield or downtime improvement. 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

  • Good final electrical test capacity: 369 devices (headline result)
  • Gross final electrical test capacity: 384 devices
  • Final electrical test downtime loss: 3.84 devices
  • Final electrical test yield loss: 11.4 devices

Run it with your numbers

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

Last reviewed 2026-05-12.