First-Pass Yield – Six Sigma Glossary of Terms

Yield is the ratio of the number of units that meet certain criteria to the number of units that enter into the process. The criteria determines if a yield is Traditional Yield or another kind of yield such as Final Yield or Rolled Throughput Yield (RTY).  Another common yield expressed in Lean manufacturing is the First-Pass Yield, which indicates the the number of steps in a process no defects were produced or detected on the “first try” or first pass.


First-Pass Yield