I would like to address this question to the Double EEs out 
     there in the TechNet World, and others with experience with 
     no-clean fluxes and their affect on high speed switching, 
     rise and fall times, parasitic capacitance, leakage, affect 
     on resistance.
       
     -What experiences can you relate?  
     -What problems have you ran into?  
     -Has No-clean been around long enough to measure its affect  
      in these areas?  
     
     Our design folks have been given a copy of the "92" and 
     ""95" CRADA reports.  I noticed in the CRADA report sections 
     on possible problems in the above areas.  
     
     -Has anyone out there actually seen problems in these areas  
      or others?
     -Has the affect, if any, limited the flixibility of design   
      for top and bottom side CCAs?  
     -How long can a trace run and at what spacing before         
      transmission begins to decay because of contamination from  
      No-clean flux?
     
     I cleaned up my hard drive memory because I figured you all 
     would send a multitude of info.  Thanks in advance.  I could 
     really use some help on this one. 
     

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