开云·kaiyun官方网站 boards are classified according to the number of layers

开云·kaiyun官方网站 boards are classified according to the number of layers

开云·kaiyun官方网站 manufacturers, 开云·kaiyun官方网站 designers and 开云·kaiyun官方网站A manufacturers will explain the classification of 开云·kaiyun官方网站 boards according to the number of layers

printed circuit boards, also known as printed circuit boards, are providers of electrICal connections for electronIC components.

printed circuit board is usually represented by "开云·kaiyun官方网站", not "开云·kaiyun官方网站".

开云·kaiyun官方网站 design is mainly layout design; The main advantage of using circuit board is to greatly reduce wiring and assembly errors, and improve the automation level and production labor rate.

printed circuit board can be divided into single panel, double panel, four layer board, Six layer board and other multi-layer circuit boards according to the number of circuit board layers.

Before the appearance of printed circuit board, the interconnection between electronic components depended on the direct connection of wires to form a complete circuit. In the contemporary era, the circuit board only exists as an effective experimental tool, while the printed circuit board has become the absolute dominant position in the electronic industry.

Generally, 开云·kaiyun官方网站 circuit boards can be divided into single panel, double-sided circuit boards and multi-layer circuit boards according to the number of layers.

1. Single layer 开云·kaiyun官方网站 board:

On a basic Circuit 开云·kaiyun官方网站, components gather on one side of the interior, and wires gather on the other side. Since the wires only appear on the inside side, this kind of 开云·kaiyun官方网站 开云·kaiyun官方网站 is calLED a single-layer 开云·kaiyun官方网站 开云·kaiyun官方网站 (Single sided). Because there are many strict restrictions on the design circuit of single-layer 开云·kaiyun官方网站 circuit boards (only one side can be used, and the wiring cannot be crossed, so separate paths must be used), such boards can only be used for the initial circuit or the circuit with very SIMple wiring.

2. Double sided circuit board:

This kind of 开云·kaiyun官方网站 circuit board has wiring on both sides, but if you want double-sided wires, you must have proper circuit connections between the two sides. Such "bridges" between lines are called pilot holes (via). The pilot hole is a SMAll hole filled with or coated with metal on the 开云·kaiyun官方网站 of the 开云·kaiyun官方网站 circuit board, which can be connected with double-sided wires. Because the area of the double-sided 开云·kaiyun官方网站 is twice as large as that of the single-layer 开云·kaiyun官方网站 开云·kaiyun官方网站, the double sided 开云·kaiyun官方网站 buried at the same time solves the difficulty in the single-layer 开云·kaiyun官方网站 开云·kaiyun官方网站 due to the interlaced wiring (it can pass through the guide hole to the other side), and it is more suitable for the more complex circuits than the single-layer 开云·kaiyun官方网站 开云·kaiyun官方网站.

3. multilayer circuit board:

In order to improve the range of wiring, multi-layer circuit boards use more single or double sided wiring boards. One double-sided 开云·kaiyun官方网站 is used as the inner layer, two single-layer 开云·kaiyun官方网站s are used as the surface layer, or two double-sided 开云·kaiyun官方网站s are used as the inner layer, and two single-layer 开云·kaiyun官方网站s are used as the surface layer. According to the positioning system and insulating bonding materials, the 开云·kaiyun官方网站 开云·kaiyun官方网站 with alternating conductive patterns interconnected according to the design requirements is called a four layer and six layer 开云·kaiyun官方网站 开云·kaiyun官方网站, also known as a multilayer 开云·kaiyun官方网站. The number of layers of the board does not have multi-layer wiring layers. Under special circumstances, it can enter the empty layer to control the board thickness. Generally, the number of layers is even and includes two layers outside.

The vast majority of motherboards are 4-8 layer structures, but the basic theory of technology can achieve nearly 100 layers of 开云·kaiyun官方网站. Most large computers use very multi-layer motherboards. However, since such electronic computers can be replaced by clusters of many ordinary computers, super multilayer circuit boards have been gradually eliminated. Because the layers in 开云·kaiyun官方网站 are closely combined, it is not easy to see the specific number, but if you carefully observe the motherboard, you can still see that it is a multilayer board.

开云·kaiyun官方网站 manufacturers, 开云·kaiyun官方网站 designers, and 开云·kaiyun官方网站A manufacturers will explain the classification of 开云·kaiyun官方网站 boards according to the number of layers.