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Calcimator

Yield Analysis Calculator

Calculate First Pass Yield (FPY) and Rolled Throughput Yield (RTY) across up to 4 process stages. Track cumulative defects and identify the weakest process stage.

Inputs

Results

First Pass Yield (FPY)

89.4%

Rolled Throughput Yield (RTY)

89.4%

Final Good Units8,941
Total Defective Units1,059
Overall Defect Rate10.59%
Weakest StageStage 3 (95%)
Hidden Factory %0.01%
How to Use This Calculator
  1. Enter Stage 1 Yield (%), Stage 2 Yield (%), and Stage 3 Yield (%).
  2. Set Stage 4 Yield (%) and Total Input Units.
  3. Review First Pass Yield (FPY) (%) and Rolled Throughput Yield (RTY) (%).
  4. Use Final Good Units and Total Defective Units to inform your decision.
  5. Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Stage 3 Yield (%)

Stage 3 Yield (%)First Pass Yield (FPY)Rolled Throughput Yield (RTY)
109.41%9.41%
3532.94%32.94%
6561.17%61.17%
9084.7%84.7%

What each input means

Stage 1 Yield (%)
Percentage of units passing Stage 1 without defects.
Stage 2 Yield (%)
Percentage of units passing Stage 2 without defects.
Stage 3 Yield (%)
Percentage of units passing Stage 3 without defects.
Stage 4 Yield (%)
Percentage of units passing Stage 4 without defects.
Total Input Units
Number of units entering the first stage of the process.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Stage 1 Yield (%) = 98, Stage 2 Yield (%) = 97, Stage 3 Yield (%) = 95, Stage 4 Yield (%) = 99 = 5 input(s) provided
  2. Calculate First Pass Yield
    First Pass Yield
    89.4039 = 89.4039
  3. Calculate Rolled Throughput Yield
    Rolled Throughput Yield
    89.4039 = 89.4039
  4. Calculate Final Good Units
    Final Good Units
    8941 = 8941
  5. Calculate Total Defective Units
    Total Defective Units
    1059 = 1059

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