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     In our designs we use .005" spacing for LPI solder mask and have had 
     very good success. Most PCB manufacturer would be willing to set up a 
     minimum standard per their process.


______________________________ Reply Separator _________________________________
Subject: FAB:ASSY:pad spacing
Author:  [log in to unmask] at SMTPpost1
Date:    4/18/96 9:03 PM


     
     
     Typically, what is the minimum spacing between printed circuit solder 
     pads that would allow for enough LPI soldermask to prevent bridging 
     for a wave soldering process ?
     
     Is there a design guideline that specifically addresses this ? If so, 
     can you point me in the right direction.
     
     Any assistance would be greatly appreciated.
     
     Thanks
     



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