We are using OSP coated boards and no-clean solder paste. In a few instances, we are seeing increased distortion in an audio circuit. Has anybody seen or heard of surface insulation resistance (SIR) decreasing after reflow on OSP boards? Is it possible that the remnants of the OSP are combining with the flux residue and changing the flux residue SIR characteristic?
Thanks for responses.
Buck
2017/3/3 2:21:32
Excellent work. I am impressed.