Plating, Anodizing & Surface Treatment worked example

Surface Treatment Yield at 99% target first-pass yield: a worked example

This scenario runs the surface treatment yield calculation on the strong side: 99% target first-pass yield, with every other input held at its documented default. Use it when surface treatment yield in plating, anodizing and surface treatment needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Conforming Treated Parts: 8 count (unchanged)
  • Total Parts Processed: 250 count (unchanged)
  • Target First-Pass Yield: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Surface treatment yield rate = surface treatment yield count ÷ total surface treatment yield population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for surface treatment yield rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for surface treatment yield gap to target.
  • At this operating point the engine returns 8 count for surface treatment yield count.
  • At this operating point the engine returns 250 count for total surface treatment yield population.

How this compares with the baseline

  • Against the tool's baseline example, where target first-pass yield sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it after an inspection batch to gauge line health, or during a quality investigation when reject rates spike. 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

  • Surface treatment yield rate: 3.2 % (headline result)
  • Surface treatment yield gap to target: 95.8 points
  • Surface treatment yield count: 8 count
  • Total surface treatment yield population: 250 count

Run it with your numbers

  • Every input above is editable in the live Surface Treatment Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.