Tag Archives: inner copper panel

Inner layer image process for multilayer rigid PCB

Photoresist material introduces Photoresist material is a critial multilayer PCB material for multilayer rigid PCB Inner layer image process. In the outer layer imager article, we have mentioned this type raw PCB material. And in the clean room, the workers loaded the cleaned copper panel. Then skillfull coat with a thin layer of photosensitive film. […]