Greetings,

Can anyone provide a simple description of or provide/recommend articles regarding the role of silver addition in solders?  I've seen reference in several articles that it was originally used as a means to mitigate migration of silver when soldering to thick silver deposits.  I've also seen reference that it also increases the thermal fatigue resistance.  The latter is what I am most interested in, and would like to better understand the "why's".

Thanks,
Kevin Glidden


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