PCB has simply printed circuit boards in short. These are simply circuit boards that have been printed as opposed to being etched onto a copper board. After design and fabrication, the PCB must be assembled to create a complete circuit board. After fabrication, testing must also be done. PCB inspection and testing are incredibly important because you do not want to package an assembled board that has defects. To avoid manufacturer defects, it is recommended you inspect all the boards you produce.
When looking for the best PCB fabrication company, be sure to confirm that they offer inspection services. In addition to that, they must offer a guarantee on the quality of service they offer. In case of defects on the circuit board, they should offer a full refund or produce additional boards to replace the defective units. This is the beauty of customer satisfaction guarantees.