Hello All - 
 
This isn't the best picture but it is all I have.  
 
This cross section is being evaluated to IPC 6012 Rev B Class 3A and is
being rejected for wicking in excess 2 mils.  Is this, in you all's
opinion, wicking or is this the effect of plasma etch/resin
removal/glass etch and not wicking?  How should this be evaluated under
B/3A?  
 
How would this be evaluated in 6012 Rev C Class 3A?  Could you even
evaluate it since this is before etch?  
 
Comments are greatly appreciated.  Btw, I'm not trying to save anything.
This panel has already been scrapped out - I have a presentation with my
customer and I'd like to offer more opinion than just my own and the
board fab.  
 
 
Thanks,
Pete
 
 
 
 
 
 
 
 
 
 
 
Peter Menuez
Supplier Quality Engineering Manager
L-3 Communications Cincinnati Electronics
7500 Innovation Way
Mason, Ohio 45040
[log in to unmask] <mailto:[log in to unmask]>  
513-573-6401 Voice
513-767-3778 Cell 
 
 

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