Multilayer PCB PCBA

double-sidedfor electronics

Generally, there are single-sided, double-sided and multilayer PCB board. For some simple electrical appliances, such as radios, a single-sided PCB is sufficient. However, with the development of the times, for multi-functional and small-volume electronic products, single-sided and double-sided PCB can not fully meet the requirements, but multilayer PCB board must be used. Multilayer PCB board has many advantages, such as: high assembly density and small volume; The connection between electronic components is shortened, the signal transmission speed is fast, and the wiring is convenient; Good shielding effect, etc. There is no limit to the number of layers of multilayer PCB board. At present, there are more than 100 layers of multilayer PCB board, commonly 4L and 6L PCB boards. Then, multilayer PCB board compares with single-sided PCB and double-sided PCB, which layers are composed of? What are their meanings and uses? Let's have a look together. Signal Layer The signal layer is divided into the top layer, the middle layer and the bottom layer, and is mainly used for placing various components or for wiring and welding. Internal Plane Layer The internal plane layer, also known as the internal power layer, is dedicated to the layout of power lines and ground lines. This type of layer is only used for multilayer PCB board. We call it double-layer, 4L and 6L boards, generally referring to the number of signal layers and internal power/ground layers. 94v-0 pcb schematic design product design electrical wiring schematic Circuit Board PCB Assembly Factory