Major Scrap / NG Sources in PCB (PCBA/SMT) Factories
Scrap and NG (Non-Good) in a PCB/PCBA factory don’t come from one single issue—they’re usually a combination of design gaps, process variation, material defects, and handling problems. 1. Soldering Defects (Top Contributor) This is usually the #1 scrap driver in SMT lines. Common issues: Root causes: 2. Component Placement Defects Errors during pick-and-place process. Typical […]