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These advantages of multi-layer circuit boards, you may not know

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These advantages of multi-layer circuit boards, you may not know

Date of release:2022-03-25 Author:admin Click:

A multi-layer circuit board is a circuit board with more than two layers to be called a multi-layer, and a multi -layer board is more than two layers, such as four layers, six layers, eight layers and so on.

Of course, some designs are three-layer or five-layer circuits, also known as multi-layer PCB circuit boards . Larger than the conductive wiring diagram of the two-layer board, the layers are separated by insulating substrates. After each layer of circuits is printed, they are pressed together to stack each layer of circuits together. After that, drilling holes are used to realize the conduction between the lines of each layer.

Multilayer circuit board

Advantages of multi-layer PCB circuit boards

Lines can be distributed in multiple layers, so that more precise products can be designed. Perhaps smaller products can be realized through multi-layer boards.

For example: mobile phone circuit boards, micro projectors, voice recorders and other smaller products.

In addition, multiple layers can increase the flexibility of design, can better control differential impedance and single-ended impedance, and output some signal frequencies with better frequencies.

Multilayer circuit boards are an inevitable product of the development of electronic technology in the direction of high speed, multi-function, large capacity and small volume.

With the continuous development of electronic technology, especially the extensive and deepening application of large-scale and ultra-large-scale integrated circuits, multilayer printed circuits are rapidly developing towards high density, high precision, and high-level digitization. , Blind hole, buried hole, high plate thickness-aperture ratio and other technologies to meet the needs of the market. Because of the computer and aerospace industry's needs for high-speed circuits, it is required to further improve packaging density, coupled with the shrinking of the size of discrete components and the rapid development of microelectronics. Electronic equipment is developing in the direction of volume reduction and weight reduction; due to the limitation of available space, single-sided and double-sided printed boards cannot achieve further improvement in installation density.

Therefore, it is necessary to consider using more printed circuits than double-sided layers. This creates conditions for the emergence of multilayer circuit boards.Automotive PCB circuit board

The address of this article:http://en.txspcb.cn/news/415.html

Key word:Multilayercircuitboard,AutomotivePCBcircuitboard,Double-sidedcircuitboard

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