allowed this modernization. The smaller and smaller dimensions and the flexibility of the printed circuit board made in recent years have greatly helped fields such as medicine and doua imprimat straturi circuit aeronautics to benefit from smaller and lighter equipment that has allowed them a high degree of development
on the top layer of the PCB and has the role of a reference indicator for the components on the PCB. Graphics and text on a circuit board's straturi imprimat circuit doua PCB are usually printed with a non-conductive permanent epoxy ink. The color is usually white, although other colors are available: yellow, black, blue, red. Screen printing is
component terminals and electrically connect them using traces of one or more straturi doua imprimat circuit layers of copper sheets laminated on and/or between layers of conductive substrate sheets. A printed circuit board can have several layers of copper which are almost always arranged in pairs. The number of layers