Thanks for all your answers about my search for electrolytes.

Mainly I understood that in principle the SnAg might be a good chance
but not already available or established in production.
The SnCu might be able to use running in a temperature range below
liquidus but still approximately 40° above solidus. But what is about
the process control of this solder alloy specially plated on copper ??
What is about the SnBi alloy with only a few (3-8% Bi) which should be
available already?
The SnZn is also done by some japanies companies but ot that accepted
might be because of storage problems and wetting behavior.

Is there nothing else or is it possibleto say that we should focused on
the promissing one ?

Thanks for support in advance

Achim Neu
Infineon Technology

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