Moisture absorption affects materials at a microscopic level. Even small amounts of trapped humidity can cause structural stress when exposed to soldering temperatures above 200°C.
How to Prevent Popcorn Effect in PCB?
The most effective method to prevent popcorn effect is to:
- Store components below recommended RH levels (typically 5% RH or lower).
- Monitor exposure time (floor life).
- Use controlled dry storage between production cycles.
Dry cabinets specifically designed for PCB components ensure stable humidity control without manual intervention.
