Created:
Aug 15, 2024 11:11 AM
| Last Modified: Aug 15, 2024 8:18 AM(1450 views)
Hi,
Is there a way to select the region on the wafer map like a wedge shape (yellow region in the snippet) across the 4th quadrant of the circle between 4'o clock to 5'o clock?
I am aware of doing lasso selection but I am wondering if I can do a more symmetric selection using formula or jsl way?
The solution might be easier in polar coordinates. Create two new data columns with the radius and angle for each data point. Plot the data using the new coordinates and see if the target rows are easier to identify with a lower and upper bound on the radius and angle. You can interactively try different selection criteria using a data filter. The selected rows would define the targets in the original Cartesian coordinates of the wafer map.