TopLine 2012

lead free boards rohs compatible TopLineoffersleadfreeboardswith4popularfinishescompatiblewithrohs comparison of lead free finishes description sn ag osp cu ni-au alsoknownasimmersiontin advantages ·lowcost ·widelyaccepted ·re-workable ·goodflatness ·goodshelflife ·lowcost ·widelyaccepted ·re-workable ·excellentflatness ·excellentwetting ·lowcost ·widelyaccepted ·re-workable ·excellentflatness ·widelyaccepted ·excellentflatness ·verylongshelflife concerns ·potentialwhisker ·microscopicvoids whitetin immersionsilver organicsolderability preservative entek106 electrolessnickel immersiongold alsoknownasenig ·shelflife ·tarnishing ·shelflife ·degradeswithtemperature ·handlingsensitivity ·flexsensitive ·addedcost ·difficultywithrework ·morebrittlesolderjoints comparison of standard finishes with p b description sn/pb hotairsolderlevel alsoknownashasl advantages ·lowcost ·widelyaccepted ·re-workable ·goodshelflife 67 concerns ·flatnesscoplanarity ·pastemisprints ·notrohscompatible