Rolled Throughput Yield
Quality
Rolled Throughput Yield (RTY)
Rolled Throughput Yield
The probability that a unit passes through every process step without defect or rework; calculated as the product of step yields.
Examples
- 01With three steps at 98 %, 95 % and 97 % yield, the rolled throughput yield of the line is only 90 %, although each step looks good on its own.
- 02The monthly review shows RTY by step, which makes the 95 % soldering step the obvious focus.
- 03After the soldering defect is fixed, RTY rises to 93 %, and the hidden rework loop at final test shrinks accordingly.