
Why SMT Solder Joints Have Pinholes & Bubbles? Solder Paste & Printing Fixes
Pinholes and bubbles on SMT solder joints are common welding defects in PCB production, which directly reduce solder joint reliability, cause hidden issues like cold solder and poor conductivity, and even lead to product failure. The root causes mostly lie in two core links: solder paste selection/control and stencil printing process, rather than a single […]








