In the world of electronics, printed circuit boards (PCBs) form the foundation of basically all tools, from simple gizmos to complex equipment. The manufacturing and assembly of PCBs, referred to as PCB assembly or PCBA, involve the integration of several electronic components onto a circuit card, producing a practical electronic http://catholicquestions.ca.wiringdoneright.com/index.php?qa=user&qa_1=rotatemoat1