Application of Vapor Phase Soldering (VPS) for Joints Reliability Improvement

Abstract

The reliability of an electronic system may depend on solder joint work. Various methods are used at present to improve joint reliability One possibility is vapor phase soldering (VPS). The biggest advantages of VPS are high efficiency and uniform heating characteristics. It is also possible to ensure good control of the soldering temperature, an oxygen free soldering atmosphere, and, especially a higher rate of heat transfer. Joints made with VPS can be more uniform with fewer defects than in joints made with reflow soldering. However, the choice of solder alloy used for VPS may be a key factor in the quality of the junction.