Resin Plugging vs. Via Filling – What’s the Difference?
Resin Plugging vs. Via Filling – What’s the Difference?
Resin Plugging vs. Via Filling – What’s the Difference?
Introduction
Resin plugging and via filling are both essential techniques in PCB fabrication. While both processes involve filling vias, their purposes, applications, and performance vary significantly.
What is a Resin Plug?
A resin plug is used to completely seal a via, preventing contaminants, solder wicking, and electrical failures. The resin used in this process ensures a stable, durable, and reliable electrical connection.
Resin Plug vs. Via Filling
| Feature | Resin Plugging | Via Filling |
|---|
| Purpose | Seals vias completely | Improves solderability |
| Application | Used for buried/blind vias | Often for through-hole vias |
| Cost | Higher | Lower |
Why Choose Resin Plugging?
- Better Electrical Performance – Prevents short circuits.
- Prevents Solder Wicking – Essential for HDI PCBs.
- Ideal for High-Density Designs – Allows for compact circuits.
Conclusion
Resin plugging is a highly reliable technique for PCB durability, particularly in advanced circuit board designs.
