What is a 7 layer PCB board?

Compared with the traditional double-sided or four-layer PCB, the 7-layer PCB board has higher integration and more complex circuit design capabilities, which provides more electrical connection channels and can accommodate more devices and components to meet the needs of complex circuit layout.

The multi-layer structure can also provide better electromagnetic compatibility and anti-interference performance, reduce signal ference, and improve the stability and reliability of the overall system. 7 layer PCB board is widely used in high performance computers, communication equipment, industrial control equipment and other fields.

What are the advantages of 7 layer PCB?

1. High density wiring capability

2. Electromagnetic interference suppression

3. Signal integrity

4. Heat dissipation performance

5. High space utilization rate

7 layer PCB board design rules

1. Level planning

Define the number of layers of the PCB board and the function and signal type of each layer.

2. Wiring rules

Lay down wiring rules according to signal type, frequency and importance.

3. Power distribution rules

Determine the layout and connection of the various power layers, as well as the location of filtering and decoupling capacitors.

4. Territorial rules

Design area grids and plan area connections to ensure uniform area distribution and low impedance to provide good area loops and EMI suppression.

5. Impedance control rules

For high-speed signal or differential signal, make impedance control rules, including matching line width, layer spacing, differential pair spacing, etc.

6. Heat dissipation rules

Design heat sinks, heat holes, and heat channels to efficiently transfer heat from the PCB surface to the surrounding environment, preventing components from overheating.

7. Manufacturing rules

Follow manufacturing requirements, including line width, line spacing, aperture size, pad specifications, safety spacing, etc., to ensure that the PCB can be manufactured smoothly and meet the design requirements.

7 layer PCB FAQ

Q1. Can you make a 7-layer circuit board with blind hole process?

A: Hello, you can do it.

Q2. How long does 7-layer PCB proofing take?

A: 6-7 days.

Q3. Are you a PCB manufacturer?

A: Hello, we are a PCB manufacturer with professional automation equipment.

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