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Category Archives: Process
Jul22
What purpose of alloy metal of Cu, Ag, Zn, Sb, Bi added to solder paste?
Tin (Sn) based solder is still the best material for PCB (Printed Circuit Board) assembly in the modern industry today. The only difference is the lead (Pb) free from the solder base due to environmental concerns. The melting point of … Continue reading
Dec19
What is IMC (Intermetallic Compound) in the electronic manufacturing industry?
What is the IMC, the Intermetallic Compound? We always heard the manufacturing engineer or some of Mechanical Engineer talking about this keyword when discussed to the soldering quality or component drop issue. So, what is the role of IMC layer … Continue reading
Dec05
Both solder joint bridging and open solder joint happen at same BGA?
Is that possible for both solder joint bridging and open solder joint defect occur in the same BGA (Ball Grid Array) or CSP (Chip Scale Package) device? It is rare to observe both solder joint bridging and open solder joint … Continue reading