Nowadays, the printed circuit boards(PCB) are almost used in different type of electronic product. For the electrical appliance which is applied with PCB, the PCB is the foundation of electrical engineering , is the “ Brain: of the electrical device. A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it. PCBs provide electricity and connectivity