non-conductive permanent epoxy ink. The color is usually white, although other colors are available: yellow, black, blue, red. Screen printing is used to render useful imprimat fabricare circuit information on the PCB board that can help users during assembly. It is used to mark component values, part numbers, test points, polarity, etc. Screen printing does
solder mask. Soldermask is generally green in color but can have different colors: green, red, blue, white, black. Only the fabricare imprimat circuit outer layers need to be covered with solder mask, the inner copper layers are protected by the adjacent substrate layers. The soldering mask soldermask is made of
of all fields imprimat fabricare circuit of activity has led to a revolution in the types and models of printed 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