Semiconductor Fab Equipment Manufacturing worked example

Long-Lead Supplier Exposure at 69% at-risk commitment share: a worked example

What does the result look like when at-risk commitment share reaches 69%? The full calculation is worked below with real intermediate numbers. A supply chain planner reviewing a tool program uses it to quantify how much committed long-lead spend is at risk if the build slips or cancels.

The inputs for this scenario

  • Long-lead purchase line items: 22 items (unchanged)
  • Committed PO value per item: 38,000 $/item (unchanged)
  • At-risk commitment share: 69 % (raised for this scenario; the documented default is 60)
  • Expedite & cancellation fees: 15,000 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total exposure = long-lead items x committed value per item x at-risk share% + expedite fees) to the inputs above produces each figure below.
  • At this operating point the engine returns 591,840 $ for total long-lead supplier exposure cost, the number this scenario is built around.
  • At this operating point the engine returns 26,902 $ / piece for long-lead supplier exposure cost per unit.
  • At this operating point the engine returns 576,840 $ for variable long-lead supplier exposure cost.
  • At this operating point the engine returns 15,000 $ for fixed long-lead supplier exposure adder.

How this compares with the baseline

  • Against the tool's baseline example, where at-risk commitment share sits at 60% and the headline result is 516,600 $, this scenario comes in 14.56% above the baseline at 591,840 $.
  • A figure at this level is achievable when at-risk commitment share is genuinely sustained, not just peaked for a shift. A single at-risk share is applied to every line item, so it blends cancellable and fully non-cancellable commitments that in reality carry very different recovery terms.

Results at a glance

  • Total long-lead supplier exposure cost: 591,840 $ (headline result)
  • Long-lead supplier exposure cost per unit: 26,902 $ / piece
  • Variable long-lead supplier exposure cost: 576,840 $
  • Fixed long-lead supplier exposure adder: 15,000 $

Run it with your numbers

  • Every input above is editable in the live Long-Lead Supplier Exposure calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.