electrical contact with possible loose wires. For its circuit aurit imprimat function of helping to prevent solder shorts, the coating is called a solder mask. Soldermask 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
internal layers compared to the two-layer board, and often part of the aurit circuit imprimat internal layers are used as a ground plane or power plane, to achieve better signal integrity, higher signaling frequencies, and better power supply decoupling. In multilayer boards, layers of material are laminated together in an alternating
to the PCB both to connect them electrically and to fix them mechanically. Printed circuit circuit aurit imprimat boards are used in almost all 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.