The benefits of HDI PCB
1. Reduce PCB cost: when the density of the PCB increases beyond the eight-layer board, the cost of using the HDI board is lower than that of the conventional PCB.
2. Have better electrical performance and signal correctness.
3. Increase line density.
4. Better reliability: improved thermal properties/ RF interference / electromagnetic interference / electrostatic discharge (RFI / EMI / ESD).