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Multilayer circuit board factory: advantages and applications of multilayer circuit boards

Multilayer circuit board factory: advantages and applications of multilayer circuit boards

  • Categories:Industry News
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  • Time of issue:2020-06-28 15:41
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Multilayer circuit board factory: advantages and applications of multilayer circuit boards

Information

 

As the name suggests, a multi-layer circuit board can be called a multi-layer circuit board with more than two layers, such as 4 layers, 6 layers, and 8 layers. Of course, there are also 3-layer or 5-layer circuit board designs, also known as multilayer PCB circuit boards.

 

The conductive trace pattern of more than two layers is separated by insulating base material between layers. After each layer of circuit is printed, each layer of circuit is overlapped by pressing. Then drill holes to realize the conduction between the lines of each layer. The advantage of the multi-layer circuit board is that the circuit can be distributed to the multi-layer wiring, so as to design more precise products. Or smaller products, such as mobile phone circuit boards, small projectors, voice recorders, and other bulky products, can be realized by multilayer boards. In addition, the use of multiple layers can more flexibly control differential impedance, single-ended impedance, and output with better signal frequencies.

 多层线路板

 

Multilayer circuit boards are an inevitable product of the high-speed, multi-function, large-capacity, and small-scale development of electronic technology. With the development of electronic technology, especially the widespread popularity of large-scale and very large-scale integrated circuits, multilayer printed circuits are rapidly developing in the direction of high-density, high-precision, and high-level digitalization. Technologies such as hole-buried hole and high plate thickness-to-aperture ratio can meet the needs of the market.

 

The shrinkage of separate component specifications and the rapid development of microelectronics, coupled with the computer and aerospace industry’s requirements for higher packaging density for high-speed circuits, continue to promote the development of electronic equipment in the direction of positive volume reduction and mass reduction; Due to the limitation of available space, single-sided and double-sided printed boards have made it impossible to achieve a further increase in assembly density. Therefore, it is necessary to consider using more printed circuits than double-sided boards, which creates conditions for the emergence of multilayer circuit boards.

Keyword:

The evaluation system of the circuit board factory should follow the following principles

The evaluation system of the circuit board factory should follow the following principles

Establishing a good cooperative relationship with circuit board factories is conducive to cost reduction, response time reduction and the creation of new market value, etc. The core issue is how to choose the ideal circuit board factory. There are many factors involved in the evaluation of circuit board factories, and the evaluation index systems are diverse, both qualitative and quantitative, and the index weights are also different. Therefore, it is necessary to establish a universal and expandable evaluation index system for circuit board factories. , And the indicator system should follow the following principles:
The use of soft and hard circuit boards?

The use of soft and hard circuit boards?

In our daily life, circuit boards are mostly single-sided, double-sided, or multi-layer boards, rigid boards, metal-based circuit boards, aluminum, copper substrates, thermally conductive fiberboards, etc., do you know what a flexible and rigid circuit board is? Rigid-flex circuit board: refers to a special circuit board made by pressing a rigid circuit board (PCB) and a flexible circuit board (FPC). The main board materials used are rigid board FR4 and flexible board polyimide (PI). Rigid and flexible circuit boards combine the rigid characteristics of rigid circuit boards and the advantages of flexible circuit
Soft and hard circuit board production process

Soft and hard circuit board production process

The flexible and hard circuit 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. In the past, two hard boards were connected by using soft boards and connectors to connect each other. In order to improve the reliability of the connection between the rigid board and the flexible board, the flexible board is directly fabricated between two rigid boards in the printed circuit board (PCB) factory, which can avoid the subsequent connection process, whether it is a rigid board manufacturer or FPC manufacturers are now able to supply rigid-flex boards. Under the demand for light and thin end products, the

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