The root cause come from Re- brushing/Re-OSP than 2 time because the coating expired, so that possible copper thickness lower spec and pass wave soldering process of customer to make defect is Bare Board no pattern.
The root cause come from Re- brushing/Re-OSP than 2 time because the coating expired, so that possible copper thickness lower spec and pass wave soldering process of customer to make defect is Bare Board no pattern.
The root cause come from Re- brushing / Re-OSP than 2 time because the coating expired, so that possible copper thickness lower spec and pass wave soldering process of customer to make defect is Bare Board no pattern.
The root cause come from Re - brushing / Re-OSP than 2 time because the, coating expired so that possible copper thickness. Lower spec and pass wave soldering process of customer to make defect is Bare Board no pattern. .