how to make uv sensitive copper cladding board from normal copper cladding board?

yanhua3 years ago
I remember at http://pcb.hqew.net/? S = 544849 has seen above solution. The home page is hqew.net. You can go and see. They also do custom PCB now. My friends are pretty much engineers collection. My friends say http://pcb.hqew.net/? S = 544849 custom PCB quality is very high, the price is right! Suggest you go and see.
Buy the special "resist" spray, or the special film which is rolled on