circuits. Technology has penetrated more and more areas of our lives and required modernization, and the printed circuit through its continuous improvement was one of the first aids that allowed this modernization. The smaller and multilayer imprimat circuit smaller dimensions and the flexibility of the printed circuit board made in recent
used in almost all circuit multilayer imprimat electronic products and some electrical products. Currently, the production and assembly of printed circuits are automated. Electronic computer aided design software is available to do much of the layout work. Multilayer PCBs allow for much higher component density because the component paths on the
is generally green in color but can have different colors: green, red, blue, white, black. Only the outer layers need to be covered with solder mask, the inner copper layers are protected by the adjacent multilayer imprimat circuit substrate layers. The soldering mask soldermask is made of a fluid substance like an ink and is applied in