Abbreviated as PCB, a Printed Circuit board is a thin plate on which chips and other electronic components are placed. Printed Circuit Board Manufacturing is a highly critical and technical job demanding attention to every single detail lest it proves hazardous while in use. Today we find them being used most obviously in computers as the motherboard, expansion boards, controller board, network interface card and all other cards basically are printed circuit boards.
Traditionally, Printed Circuit Boards are found in transformers of all kinds. In transformers, PCB’s can be used in any concentration for the purpose of servicing or rebuilding. The concentration of Printed Circuit Board, however, needs to be varied in railroad transformers at <1000 ppm to be precise. In mining equipments, Heat transfer systems and hydraulic systems they are to be used at a concentration level of <50 ppm. In the pigments industry, too PCB’s to be used have to follow specific concentration levels. Other areas are electromagnets, natural gas pipeline systems, research and development, scientific instruments, capacitors, circuit breaker, air compressor systems, transmission systems and so on.
There are some other type’s too e.g. flexible circuit boards, flexible printed circuit, SMT (Surface Mount Technology) which is directly mounted on printed circuit boards etc.
The PCB Manufacturers are following one circuit diagram to make it. The circuit diagram has to be readable while the PCB layout has to be functional. The layout and circuit are therefore very different from each other. PCB layout can be done manually or through the use of an auto router. For best results, a combination of both manual and automatic systems is good since it provides opportunities for the creative outputs of the PCB layout designer. The layout has to be made in order to suit the circuit and hence the appropriate board with the right layout and circuit is real serious work of a technician and designer.
