Common Problems in Reflow Soldering
Solder Bridging: Unmasked pins adhere to each other under high temperature.
Heat Damage: PCB material deforms due to local overheating.
Advantages of Brown Tape
High Contrast: Brown background allows operators to clearly identify masking areas and reduce omissions.
Precise Bonding: Designed for PCB surface to avoid curling on micro-pitch components.
Thermal Barrier: Withstands 260°C reflow temperature to prevent oxidation of PCB copper layer.
Color Contrast Experiment
Black Tape: Difficult to detect masking integrity on dark PCBs.
White Tape: Easily confused with background on white PCBs, resulting in insufficient coverage.
Application Tips
Preheat Tape: Slightly heat (80°C) to enhance adhesion.
Segmented Coverage: Use narrow strips of tape for high-density areas to avoid over-masking.
Conclusion
Brown circuit board tape significantly improves reflow soldering yield and extends PCB life through color visibility and precise bonding.
