The main purpose of a Printed Circuit Board or a PCB is to connect the conductive electronic components using pathways which are engraved from the copper sheets onto a non-conductive substrate. This PCB is also known as Printed Wiring Board (PWB) or Etched Wiring Board (EWB). A Circuit Board without any electronic connection is called as Printed Circuit Board whereas if it has electronic connections then it is known as Printed Circuit Assembly (PCA) or Printed Circuit Board Assembly (PCBA).

In general all PCB’s are very rugged in nature. They are inexpensive and at the same time it is highly reliable. While designing a PCB the layout has to be done in a proper way and also the initial cost of design will go high when compared to other wired-wrapper or point-to-point constructed circuits. This kind of PCB is useful in many industries and in industries these PCB boards have to be designed in such a way that it meets the standards of IPC organization.

In Printed Circuit Boards bonding plays an important role as the layer of copper and the substrate are bonded together and then the unwanted copper layers are removed to form a necessary design this is done by etching. Also in some cases these PCB’s are designed by adding needed traces to the empty substrate. There are three methods to remove copper from the substrate and they are Silk Screen Printing, Photoengraving, and PCB Milling. Other than this additive process is also there and in that semi-additive is the most popular one.

All PCB has to be certified under Safety Standard UL 796 which makes the board safer for use.