Rates and Final Yield

Final Yield after Rework

If all rework succeeds, final good units include first-pass good plus rework success.

highlighted = computed this step

Rework succeeds

All rework units succeed, so rework success is 15.

rework success=15\text{rework success}=15
Yield ratesThe chart shows the count split and the exact rates.yield ratesstarted 100; first-pass good 80; final good 95startedstarted 100first passfirst-pass good 80after reworkfinal good 95measurecount/ratemeaningfirst-pass yield4/5good before reworkrework rate3/20sent to reworkscrap rate1/20scrappedfinal yield19/20good after reworkimprovement3/20final minus first-passdeterministic quality-count arithmetic only

Final good

Final good units are 95.

80+15=9580 + 15 = 95
Yield ratesThe chart shows the count split and the exact rates.yield ratesstarted 100; first-pass good 80; final good 95startedstarted 100first passfirst-pass good 80after reworkfinal good 95measurecount/ratemeaningfirst-pass yield4/5good before reworkrework rate3/20sent to reworkscrap rate1/20scrappedfinal yield19/20good after reworkimprovement3/20final minus first-passdeterministic quality-count arithmetic only

Final yield

Final yield is 19/20.

95/100=19/2095 / 100 = 19/20
Yield ratesThe chart shows the count split and the exact rates.yield ratesstarted 100; first-pass good 80; final good 95startedstarted 100first passfirst-pass good 80after reworkfinal good 95measurecount/ratemeaningfirst-pass yield4/5good before reworkrework rate3/20sent to reworkscrap rate1/20scrappedfinal yield19/20good after reworkimprovement3/20final minus first-passdeterministic quality-count arithmetic only