Pb Free Components and Sn/Pb Solder

Many component manufacturers are moving to Pb free terminations. I've been doing a literature study of Pb free processing and have found several articles that indicate Pb-free paste with Sn/Pb terminations leads to early fatigue failures. Does anyone know of a study that addresses Pb-free terminations with Sn/Pb paste? Thanks in advance, John S

reply »