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Classification of circuit boards

2020-10-29
69次


电路板


The circuit board can be called a printed circuit board or a printed circuit board. The English name is (PrintedCircuitBoard) PCB, (FlexiblePrintedCircuitboard) FPC circuit board (FPC circuit board is also called flexible circuit board. Flexible circuit board is based on polyimide or polyester film A flexible printed circuit board made of base material with high reliability and excellent flexibility. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability.) and rigid-flex board (reechas, SoftandhardcombinaTIonplate)-The birth and development of FPC and PCB, gave birth to the new product of soft and hardcombination board. Therefore, the rigid-flex board is the flexible circuit board and the rigid circuit board. After pressing and other processes, they are combined according to the relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.


Next, follow the circuit board manufacturers to understand what are the classifications of circuit boards?

According to the number of layers, circuit boards are divided into three major categories: single-sided boards, double-sided boards, and multi-layer circuit boards.


The first is a single-sided board. On a basic PCB, the parts are concentrated on one side, and the wires are concentrated on the other side. Because the wires only appear on one side, this kind of PCB is called a single-sided circuit board. Single panels are usually simple to manufacture and low in cost, but the disadvantage is that they cannot be applied to products that are too complex.


Double-sided boards are an extension of single-sided boards. When single-layer wiring cannot meet the needs of electronic products, double-sided boards should be used. There are copper-clad wires on both sides, and the lines between the two layers can be connected through vias to form the required network connection.


Multi-layer board refers to a printed board with more than three conductive pattern layers and insulating materials between them laminated with each other, and the conductive patterns between them are interconnected as required. Multilayer circuit boards are the product of the development of electronic information technology in the direction of high speed, multi-function, large capacity, small volume, thinner and lighter weight.


Circuit boards are divided into flexible boards (FPC), rigid boards (PCB), and rigid-flex boards (FPCB) according to their characteristics.


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