Interesting stories in PCBA processing: incredible process problem solving

In PCBA processing, sometimes incredible process problems are encountered, and engineers and technicians will come up with innovative solutions. Here are some anecdotes and surprising problem-solving stories about PCBA processing:

1. PCBA problems in flight mode:

Once, a plane encountered a communication failure during flight. After inspection, it was found that it was caused by a tiny soldering problem on the PCBA. Due to the urgency, the engineers adopted a very innovative method, using mobile baking equipment on the aircraft to re-solder the PCBA, successfully solving the problem without returning to the factory for repair.

2. Tiny foreign objects on the production line:

Frequent quality problems occurred on an automobile manufacturer's PCBA production line, resulting in production line shutdowns. After multiple inspections, engineers discovered that the root cause of the problem was a small rat crawling on the production line and chewing off a wire, causing a short circuit. This anecdote led to additional protective measures on the production line.

3. PCBA problems in extreme environments:

In extreme environments (such as deep sea or space), PCBA needs to withstand extreme temperatures, pressure and radiation. During a deep-sea exploration mission, a PCBA underwent high-voltage testing and found that the shell was deformed. Engineers used special materials and structures to enable it to withstand the challenges of extreme environments.

4. PCBA problem on firewall:

A data center's firewall frequently failed, and engineers discovered a strange problem on the PCBA: a small ant was attracted to a capacitor, causing a short circuit in the circuit. The solution to this problem is to add better containment and cleaning measures.

5. Weather failure:

During an extreme weather condition, a PCBA system repeatedly failed, but then returned to normal operation when normal weather returned. Finally, it was discovered that hot weather caused the temperature of some components to rise, causing the failure. The solution is to use temperature sensors to monitor component temperatures and reduce power when dangerous temperatures are reached.

These anecdotes showcase unusual problems in PCBA processing and the innovative solutions engineers adopted. They highlight the need for flexibility and creativity in PCBA manufacturing to cope with a variety of unexpected challenges.