WHAT IS 8 LAYER PCB?

8 layer PCB is a multi-layer printed circuit board with high integration and good circuit conduction performance, which realizes signal transmission and electrical connection by adding multiple layers of copper and insulation layers inside. 8-layer PCBS are widely used in electronic products, and their design and manufacture play an important role in improving circuit performance and reducing board size.

How Thick Is A 8 Layer PCB?

The thickness of the 8 layer PCB can be customized according to the needs of the project, the general standard thickness is 1.6mm, and other thicknesses can be selected, such as 0.8mm, 1mm, 1.2mm, etc. When choosing the thickness of the PCB board, it is necessary to consider the complexity, power consumption, space constraints and cost of the board.

8 Layer PCB Motherboard Application

1. High performance computing: such as supercomputers, data center servers, etc.

2. Communication equipment: such as base station, router, switch, etc.

3. Industrial control: such as industrial robots, automated production lines, sensors and instruments and other control systems.

4. Medical equipment: medical monitors, surgical equipment and electronic testing equipment, etc.

5. Automotive electronics: such as vehicle entertainment system, vehicle navigation system and body electronic control module.

8 Layer PCB Thickness

The thickness of the 8-layer PCB board is usually determined according to the specific application needs and technical requirements, and the commonly used standard thickness is 1.6mm. In addition, according to different application scenarios, you can also choose different thicknesses such as 0.8mm, 1.0mm, 1.2mm, etc. These standard thicknesses can not only meet the stability and reliability requirements of the circuit board, but also facilitate the PCB manufacturing and assembly process.

Standard 8 Layer PCB Stackup

PCB stack structure design is a complex project, need to consider signal integrity, power consumption, EMI and other aspects of factors. When designing an 8-layer pcb stackup, you need to consider the following:

1. Signal integrity

In the PCB stacking design, it is necessary to reasonably plan the layout of the signal layer, stratum and power layer, and reduce the length and impedance of the signal line to improve signal integrity.

2. Impedance control 

For high-speed signal transmission, strict impedance control is required to ensure stable and reliable signal transmission. 8-layer pcb stackup design must consider the impedance matching between different layers.

3. Thermal management 

8 layer pcb stackup design also needs to consider thermal management, reasonable layout of heat sinks, heat sinks and vents, to ensure the stable work of the circuit board.

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