Mindaugasu writes – “One of more advanced PCB manufacturing methods is exposing laminate copper boards covered by photo resistive layer through mask. Using UV light in manufacturing PCB’s has many benefits according to other methods: you can get thin tracks like 0.2mm. You couldn’t do this by using other home techniques like laser printers or hand artwork; other advantage is that this method gives clean image – smooth edges of PCB tracks.” Here’s how to make your own [via] – Link.
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