Multilayer PCB Manufacturing Process
The manufacturing process of multilayer PCBs is detailed and requires special precautions. It involves steps such as designing the PCB layout, making the inner layer core, lamination, cutting, inner dry film application, black oxidation, lamination, mechanical drilling, metalizing the through holes, dry film and pattern plating, solder mask application, silkscreen, surface finishing, profiling, E-TEST, and final inspection.