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What are the advantages of PCB multilayer circuit boards?

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What are the advantages of PCB multilayer circuit boards?

Date of release:2021-03-12 Author:KF Click:

What are the advantages of PCB multilayer circuit boards ?

As the name suggests, a multi-layer circuit board means that a circuit board with more than two layers can be called a multi-layer, such as four-layer, six-layer, eight-layer and so on. Of course, some designs are three-layer or five-layer circuits, also known as multi-layer PCB circuit boards .

Multilayer circuit board

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 laminated to stack each layer of circuits together. After that, drilling holes are used to complete the conduction between the lines of each layer. The advantage of multi-layer PCB circuit boards is that the lines can be scattered outside the multi-layer wiring, so that more delicate products can be designed. Perhaps smaller products can be completed through multi -layer boards . Such as: mobile phone circuit boards, micro projectors, voice recorders and other products with relatively large volumes. In addition, multiple layers can increase the flexibility of design, can better control differential impedance and single-ended impedance, and input with better signal frequencies. Multilayer PCB circuit board

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 widespread and deepening use of large-scale and ultra-large-scale integrated circuits, multilayer printed circuits are rapidly developing in the direction of high density, high precision, and high-level digitalization. , Blind hole buried hole high plate thickness aperture ratio and other technologies to meet the needs of the market. Due to the demand for high-speed circuits in the computer and aerospace industries. It is required to further increase the packaging density, coupled with the reduction of the size of the discrete components and the rapid development of microelectronics, the electronic equipment is developing in the direction of reducing the volume and increasing the quality; due to the limitation of the available space, single-sided and double-sided printed boards can no longer be Complete further advancements in disassembly density. Therefore, it is necessary to consider using more printed circuits than double-sided layers. This creates conditions for the presentation of multilayer circuit boards. PCB double-sided

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Key word:Multilayercircuitboard,integratedcircuitboard,Rigid-flexboard

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