u/Joy-DEZSMART

I'm still learning about PCB cleaning processes, and one thing I've noticed is that different PCB assembly companies seem to use very different approaches.

Some mention manual cleaning, others use ultrasonic systems, batch or inline cleaning equipment, and some don't clean at all when using no-clean flux.

For those working in PCB assembly, what method is most common in your experience?

More importantly, what made your company choose that approach?

Was it because of product reliability, customer requirements, production volume, cost, or something else?

I'm genuinely interested in learning how these decisions are made in real manufacturing environments. I'd love to learn from people with hands-on manufacturing experience.