日: 2026年5月21日

Why PCB Edge Quality Affects SMT Yield

PCB edge quality is often ignored until production problems start showing up on the SMT line. Boards pass AOI.Placement accuracy looks normal.Reflow profiles are stable. But yield still drops. In many factories, the real issue is not the solder paste or the placement machine. It is the PCB edge itself. Poor depaneling quality can create burrs, stress cracks, edge deformation, and hidden micro-damage that directly affect SMT yield. As PCB designs become thinner and more compact in 2026, this issue is becoming harder to ignore. Especially in: Many engineers are now paying closer attention to how panels are separated — not just how fast. 🔍 What Does “PCB Edge Quality” […]