"Whiskers" actually 'grow', they are not part of the soldering process[0]. Lead free solder is very susceptible to the phenomenon. [0] https://en.wikipedia.org

"Whiskers" actually 'grow', they are not part of the soldering process[0]. Lead free solder is very susceptible to the phenomenon. [0] https://en.wikipedia.org/wiki/Whisker_(metallurgy) https://en.wikipedia.org/wiki/Whisker_(metallurgy)