...-free energies of the different ITO substrates were calculated using the Owens–Wendt method (Żenkiewicz, 2007). The results from the experiments presented in Figure 1(a) show that all of the methods used for the surface treatment caused a decrease in the value of the DW contact angles...

... Surface treatment Solders Pb‐free solder Pb‐free surface finishes Reliability Accelerated temperature cycling SAC 305 OSP ENIG Immersion silver Traditionally, lead‐based solders were the materials of choice for interconnection of electronic components on printed circuit boards (PCBs...

... The present study provided a solution to the tombstoning problem encountered in lead free soldering by controlling the SAC solder alloy compositions. © Emerald Group Publishing Limited 2005 Solder Soldering Surface treatment Assembly Tombstoning has been plaguing the surface mount...

... processes Surface treatment The elimination of lead in electronics products has been a hot topic for several years. The driving force for this has been the toxicity of lead. Even though these discussions have been going on for years, only recently have electronics manufacturers begun to manufacture...

... Group Publishing Limited 2004 Solders Soldering Surface treatment Promoting environmentally conscious (ECO) technology is important for creating a sustainable society in the 21st century. Lead‐free soldering is one of the ECO technologies used in electronic packaging assembly. Both...

... of −50 percent of the average measured volume, and that no bridges should be formed during the paste printing. A typical production screen printer and metal squeegees at 60° were used for paste printing. Assembly Surface treatment Surface fitting Solders Miniaturization...

...°C. The recommended time above liquidus is 40 s for the RSS reflow profile and 50‐70 s for the RTS reflow profile. © Emerald Group Publishing Limited 2004 Soldering Surface texture Surface treatment Solder paste manufacturers recommend that the peak temperature is as high...

... Soldering Mechanical properties of materials Drop‐point determination Tin‐lead Surface treatment In the drop test, whenever the fracture occurred in the solder joint itself, it always proceeded through the IMC layer between the lead and solder, for all component types, as shown in Figure 11 . Part...