SMTnet Express, May 28, 2020, Subscribers: 28,990, Companies: 11,012, Users: 25,834 Head-on-Pillow Defect Detection - X-ray Inspection Limitations Credits: Ericsson AB Both the number and the variants of Ball Grid Array packages (BGAs) are tending
Defect Free QFN Assembly Defect Free QFN Assembly The problem with soldering QFN packages is that they float, skew and tilt on the 'domed' melted solder during the SMT re-flow process. This floating, skewing and/or tilting will lead to solder