>>> Sheila Smith <[log in to unmask]> 08/07/97 07:20am >>> Jan, What sort of problems have you seen with Ag filled adhesives & PbSn solders?? We are experiencing a mystery anamoly after elevated temp burn-in and suspect the Ag filled epoxy is doing something unexpected ... could you elaborate? Thanks, Sheila Smith, TRACOR AES At 11:10 AM 8/7/97 +0200, you wrote: >***** Unclassified ***** >> >>I have been told that gold and silver are incompatible materials for >>bonding together, and that, therefore, gold finishes and silver-filled, >>electrically conductive adhesives will not work well together. Does >>anyone have any data to corroborate or contradict this information? >> >>Steve Murphy >> >------------------------------------------------------------------------------- > >Steve, > >We have a very long experience with silver-filled, electrically conductive adhesives on gold. We use it, among others, for die bonding. We have never experienced problems due to incompatability between gold and silver. We have seen problems with both materials in combination with PbSn solders, maybe thats where this 'rumour' comes from. >Hope this helped....... >Jan Bokhove >Dep. CQM >Hollandse Signaalapparaten >tel. +31 74 2482949 >e-mail [log in to unmask] >