Pcb Assembly For Metal Detector has a copper track that connects the holes in which the various components are located. They are designed for each circuit and are very easy to build. Its circuit board substrate includes metal conductive layers on both sides, and components are attached to both sides. A hole in the PCB connects the single-sided circuit to the circuit on the other side. In addition to having a different number of layers and sides, it can also change inflexibility. Large it uses a sturdy, rigid substrate material so that the sheet is not easily deformed. At the top of the copper layer Pcb Assembly For Metal Detector covers is a solder mask that provides each PCB with its characteristic green color. It insulates the copper trace from inadvertent contact with other conductive materials, which can cause a short circuit. In other words, the solder keeps everything in place. The holes in the solder mask are where solder is applied to attach the component to the board. The solder mask of Pcb Assembly For Metal Detector is a critical step in the smooth fabrication of PCBA because it avoids soldering on unwanted components and avoids short circuits.