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Impedance Controlled PCB DesignWhat are the advantages of multilayer PCB circuit boards?
2025-12-05

If we compare it with a single-sided PCB board, we can see the differences on the surface without discussing the internal quality. These differences are important for the durability and functionality of the PCB throughout its entire life.

The main advantages of multilayer PCB boards are as follows: they are resistant to oxidation. The multi-layer structure, high-density and surface coating technologies ensure that the circuit boards are of high quality and safe to use.

  1. The hole wall copper of a multilayer PCB board is usually 25 microns thick.

    Better reliability, including better resistance to thermal expansion of the copper core.

  2. Solder - free connection or open - circuit connection.

    Advantage: Perfect circuits ensure reliability and safety, with no maintenance work and no risk.

  3. Exceeding the cleanliness requirements specified by IPC.

    Benefit: Improving the cleanliness of multilayer PCB boards can lead to better reliability.

  4. Strict control of the service life of each surface treatment.