8 4 August, 2015
Use of Lead in Electronics
Use of Lead containing Solders in PCB
PbSn63 or PbSn62Ag2
are & have been used for soldering components onto a
printed circuit board (PCB)
Leadfree alternative solders known & implemented
E.g. SnAg3.8Cu0.7 (SAC)
Use of high Lead containing Solders as chipsolders in packages
PbSn5 or PbSn2Ag2.5
are used for die attach applications
No re-melting during PCB reflow process
Excellent wettability
Reliable due to ductility
Commercially competitive
Today no alternative drop-in solution available