4.1 FPY- First Pass Yield.FPY 是一次性合格的成品率 4.2 FPY means the Yield from 1st process to final process without rework. 首次成品率是从第一个工序到最后一个工序没有经过返工的成品率. 4.3 FPY calculation formula as below.下面是计算首次成品率的公式 FPYT = FPY1 * FPY2 * ……*...
Second method to calculate RTY Let us have a look at the second method of RTY calculation. We’ve again got 5 process steps in this example. To use this method; you need to have two metrics i.e. DPMO and DPU calculated for each process step. We will now review the calculations to d...
Let us have a look at the second method of RTY calculation. We’ve again got 5 process steps in this example. To use this method; you need to have two metrics i.e. DPMO and DPU calculated for each process step. We will now review the calculations to determine the DPU and DPMO. Ca...
The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the ...