This will keep TechNet hopping!
     
     
     I have a PWB with plated, unsupported holes (large pad on bottom and 
     only a "target pad" on top).  Currently my electrical connections are 
     made on the bottom.
     
     Here's my question:
     
     What trouble am I going to get into if I make an electrical connection 
     on an internal layer?  
     
     PWB material is FR4.
     Layer count is 8.
     Proposed electrical connection on layer 5.
     No blind or buried vias.
     
     Thanks in advance!
     Harlan
     [log in to unmask]


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