In electronic devices, the PCB circuit board is the bridge that connects various electronic components, and its performance directly affects the stability and reliability of the entire device. Among them, four layer PCB circuit boards have been favored by many users due to their excellent performance and wide applications. So, what are the detailed parameters of customized products for four layer PCB circuit boards? Let's learn about it together.
1. Material: The material for a four layer PCB circuit board usually includes glass fiber reinforced epoxy resin (FR-4), etc. These materials have good electrical properties and mechanical strength, which can meet the needs of most electronic devices.
2. Thickness: The thickness of a four layer PCB circuit board is usually between 0.8mm-3.2mm. The choice of thickness mainly depends on the power and heat dissipation requirements of the equipment.
3. Size: The size of the four layer PCB circuit board can be customized according to the user's needs. Common sizes include 100mm * 100mm, 200mm * 100mm, 300mm * 200mm, etc.
4. Layers: The four layer PCB circuit board includes a top signal layer, a bottom signal layer, a top power layer, and a bottom power layer. Each layer can be finely wired through laser drilling and electroplating technology.
5. Aperture and hole spacing: The aperture of a four layer PCB circuit board is usually between 0.2mm-0.6mm, and the hole spacing can be customized between 0.5mm-2.0mm. The selection of aperture and spacing mainly depends on the size of the component and the complexity of the wiring.
6. Surface treatment: The surface treatment of the four layer PCB circuit board can be selected from tin spraying, gold plating, immersion gold, etc. Different surface treatment methods have different anti oxidation and welding properties.
7. Impedance control: Impedance control of a four layer PCB circuit board is very important, as it directly affects the quality and stability of signal transmission. We can provide four layer PCB circuit boards with different impedance levels such as 50 ohms, 75 ohms, and 100 ohms according to user needs.
The above are the detailed parameters of customized products for four layer PCB circuit boards. If you have any other questions or needs, please feel free to contact us at any time, and we will provide you with professional services and solutions.
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