焊锡可靠性

PCB1235455%1DFRDFM234DFR'''''/DFM''112Sn3245255SnPb23520240BGA'BGAPCBAIPC260PCBABGABGA255BGA260BGA245250PCBPCBPCBLiftedPadSMDSMDTearing'12Sn3.5Ag1%221179Sn0.7Cu1%227183BiPbBi96IMC0.5%Sn3.5Ag3Bi60%32%BiSn1.5Ag3.1Cu0.5%43%BiSnPbSnPbSn1.5Ag3.1Cu0.5%SnPb2Bi'KirkendallVoids1939SnSn37PbSnAuAgCuCu6Sn5IMCCuCu6Sn5CuSnAuAgCuSnAuAgCuSnNiNi/AuAuNiIMCBGAOSPCuSnWhisker3%Sn100%SnPCBSnSn10mmMatteSn10SnSnSnSnBiSbCuSnIMCPCBA26%13.2-30SnCuSnZnSnAgSnAlZnPbPbBiSb0.2-0.5%BiSbSMT70Sn