The history of PCBs dates back from the late 19th century, few years after the concept of an integrated circuit was developed. In the earlier times, the size of the components and that made the devises look giant and massive. The technology of embedded circuit was a revolution in the engineering world, where the electronic engineers devised a method to integrate more components into a single chip. Thus the design and manufacturing of integrated circuits (IC) got great prominence and foster since then. However, every single IC was specially made for a single purpose and achieving multiple purposes was beyond the scope of the IC alone. Here was the time when the need of circuit board was felt when multiple ICs and other components like transistors, capacitors and resistors can be embedded together to perform multiple operations. Calculators can be taken as the example of earlier PCBs which has the capability of performing multiple functions of addition, subtraction, division,..