How To Distinguish Single And Double-sided Multilayer Circuit Boards

The two most common ways to distinguish single and double-sided multilayer circuit boards are as follows: 1. Take it up and shine it against the light, the inner core is opaque, that is, all of them are black, which is a multilayer board, and vice versa. Single and double-sided circuit boards, single-sided boards have only one layer of wiring, and there is no copper in the holes. The double-sided board has lines on the front and back, and there is copper in the lead-through hole. 2. The most fundamental difference is the number of circuit layers: a single-sided circuit board has only one circuit (copper layer), all holes are non-metallized holes, and there is no electroplating process. The double-sided circuit board has two layers of circuits (copper layer), with metallized holes and non-metallized holes, and has an electroplating process. 3, PCB is divided into single-sided circuit board, double-sided circuit board and multi-layer circuit board. Multi-layer circuit board refers to PCB with two or more layers. The production process of multi-layer circuit boards will add the production process of inner lamination on the basis of single and double panels. Distraction using slices can also be analyzed.

How to distinguish single and double-sided multilayer circuit boards

With the continuous updating of high-tech electronic products, the application fields of multilayer circuit boards have also increased. Then, what are the characteristics of multilayer circuit boards? 1. High assembly density, small size, and light weight. Meet the needs of light and miniaturization of electronic equipment; 2, due to the high assembly density, the wiring between components (including components) is reduced, the installation is simple, and the reliability is high; 3, because the graphics are repeatable and consistent, reducing wiring and The assembly error saves the maintenance, debugging and inspection time of the equipment; 4, the number of wiring layers can be increased, thereby increasing the design flexibility; 5, can form a circuit with a certain impedance, can form a high-speed transmission circuit; 6, can It is equipped with circuit and magnetic circuit shielding layers, as well as a metal core heat dissipation layer to meet the needs of special functions such as shielding and heat dissipation.