We are performing testing for lead free connector finishes. We want to run solderability tests on a series of lead free connector plating options in a series lead free PCB's.
I need some advice on the most popular lead free PCB finishes. I am aware of immersion silver, electroless gold and OSP. Could someone please provide insight on the industry acceptace of these finishes, any other industry accepted finishes and some typical thickness specifications, base platings if any, etc.