Graping is a phenomenon marked by the appearance of unreflowed solder particles on top of the solder mass. The solder that is partially coalesced resembles a cluster of grapes, hence the derivation of the phenomenon’s name.[1]
^" Present and future solder technologies: how new powders, activator chemistries and epoxy fluxes are evolving for production use."
Lead-free reflow soldering temperatures are higher, which results in more graping. Graping is also caused by increased surface oxidation. The increased surface...
heat in the process. Wine is most often made from grapes, and the term "wine" generally refers to grape wine when used without any qualification. Even so...