Hello Bill -
        The only bad experiences that I have had with Indium solders/alloys 
     relates to corrosion. Some of the use environments contained enough 
     moisture that I had solder joint corrosion. Of coarse, these issues 
     were an integral part of the pwa design (amount of voltage, component 
     layout, etc) parameters and the end use environment - a poor material 
     choice selection rather than problems with indium solder. Check out 
     Chapter 2 for references on Indium containing solders in Solder 
     Mechanics: A State of the Art Assessment by Frear, Jones, and Kinsman 
     - there may be some information that is useful to you.
     
     
     Dave Hillman
     Rockwell Collins
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______________________________ Reply Separator _________________________________
Subject: assy:gold/indum/solder
Author:  [log in to unmask] at ccmgw1
Date:    5/29/96 6:46 PM


     
What is the compatibility of using indum7 to gold? to solder?
     
some of our folks here believe that _any_ tin/indum is a bad thing (like 
tin/gold)
     
we are planing to use Indum7 to connect a solder coated lead to a gold pad (SMT)
     
Bill Gaines
AeroJet (for $)         IHPVA   (for speed & fun) 
IEPS    (for info)      SCCA    (for trophys)    
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