Die scratches on the fields of the die flatten first. Die scratches next to the devices last a lot longer. Inside of devices, they last the longest. These on the bays show that they do last longer than the ones in the open fields. But when they appear above or below the building or irregular on they bays they are die scratches not extra columns. Most often extra columns appear in the centers of the bays. These are not extra columns, but die scratches on the bays.


Edited by coop
09/24/2018 1:31 pm