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What are the classifications of PCBA?

Classification according to the number of circuit layers: divided into single-sided, double-sided and multi-layer boards. control PCBA boardCommon multi-layer boards are generally 4-layer boards or 6-layer boards, and complex multi-layer boards can reach dozens of layers.


1. Single-Sided Boards

On the most basic PCB, the parts are concentrated on one side, and the wires are concentrated on the other side (when there are SMD components, it is the same side as the wires, and the plug-in devices are on the other side). Because the wires only appear on one side, this kind of PCB is called Single-sided.


2. Double-Sided Boards

This circuit board has wiring on both sides, but to use both sides of the wire, there must be a proper circuit connection between the two sides. The double-sided board solves the difficulty of staggered wiring in the single-sided board (it can be conducted to the other side through the hole), and it is more suitable for use in more complicated circuits than the single-sided board.


3. Multi-Layer Boards

In order to increase the area that can be wired, more single or double-sided wiring boards are used for multilayer boards. A printed circuit board with one double-sided inner layer, two single-sided outer layers, or two double-sided inner layers and two single-sided outer layers, alternated by positioning system and insulating bonding material, and conductive patterns. Printed circuit boards that are interconnected according to design requirements become four-layer and six-layer printed circuit boards, also known as multi-layer printed circuit boards.




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by casnerdarin | 2022-07-06 15:04 | technology | Comments(0)