PCB Assembly is the process of creating a complete electronic circuit board by placing and soldering electronic components onto a Printed Circuit Board (PCB). This involves several steps, including designing the PCB layout, fabricating the board, and then assembling the components, which can include resistors, capacitors, and integrated circuits. The assembly can be done manually or through automated machines, depending on the scale of production. After assembly, the boards undergo testing to ensure they function correctly. Proper PCB Assembly is crucial for the reliability and performance of electronic devices, from simple gadgets to complex systems.