Analysis of factors affecting PCBA welding performance

As we all know, PCBA welding includes wave soldering, reflow soldering, and soldering iron. Everyone’s processing techniques are basically the same, but the welding quality is very different. Why is this? What affects PCBA welding performance?

PCB development

Process factors: PCB circuit design processing method, thickness, number of layers, etc., and whether to heat after welding.

Welding process: welding area size, gap, solder joint gap, wiring shape, thermal conductivity, heat capacity, etc.

Welding materials: flux composition, activity, melting point, etc. The composition, melting point, and impurity content of the solder. Solder paste viscosity, specific gravity, triggering performance.

Dongguan Dianjing Electronics is mainly engaged in the design, R&D, production and sales of motor drives, colorful LED drives, brushless DC motor control boards, and home appliance control boards. It has more than 10 years of experience in the industry. The production quality is strictly implemented in accordance with the IATF16949 automotive product quality management system, and PCBA can be developed and designed free of charge.