Electrical Equipment Industry
Solder Splashing During Cream Solder Printing
When electronic PCBs are charged with static electricity in the cream solder printing process, charged solder may splash due to repulsion.
If the PCB with splashed solder is sent to the thermal treatment process, the solder forms solder balls that may cause circuit problems.
Solder ball: A drop of solder forms a shape of a ball, adheres to a chip component and causes a short-circuit or other problems.
Conventional countermeasures
None
- Printing defects occur.
- The level of trust by customers decreases.
Countermeasures with static eliminators (ionizers)
An ionizer reduces printing defects. It is also effective for improving the level of trust by customers.
Improvements and Effects
Words from the worksite
Reduced defect rate
Defect rate before the measures: almost 1%, defect rate after the measures: almost 0.1%
In addition, there are other invisible effects such as improved reliability.
