Printed circuit board (PCB) is a raw material insulation board used for connecting electronic parts. PCB manufacturing technology trends towards high density, high precision, and reliability. PCBs play a role in avoidance of errors, good quality of electronic devices, and cost savings. PCBs contain features such as pads, through holes, mounting holes, wiring, connectors, and charges. The popularity of PCBs lies in their high density, reliability, determinability, manufacturability, testability, mountability, and sustainability. The green color of PCBs is popular due to historical and practical reasons.