HDI board is a high-density plug-in board manufactured by using advanced micro wire dielectric layer and blind/buried hole technology. Compared to traditional regular boards, HDI boards have higher line density, smaller line width/spacing, and can achieve multi-layer stacking. Due to the difficulty in designing, wiring, and manufacturing HDI boards, their prices are relatively high.

1. High density: HDI boards can achieve multi-layer stacking design, compressing more lines on smaller areas, effectively improving the wiring density of circuit boards.
2. High reliability: The HDI board adopts blind/buried hole technology, reducing the length of the circuit and improving the reliability and stability of circuit transmission.
3. Reduce volume: The high-density design of HDI boards can reduce the volume of the entire circuit board, making it suitable for electronic devices that require product volume.
4. Improve signal integrity: HDI board wiring is more compact, effectively reducing signal interference and loss, and improving signal integrity during transmission.

1. Communication equipment: HDI boards can achieve multi-layer stacking design, suitable for high-density wiring needs of communication equipment such as mobile phones, wireless network devices, fiber optic communication devices, etc.
2. Multimedia devices: HDI boards can reduce the volume of the entire circuit board and are suitable for high-density circuit design of multimedia devices such as laptops, tablets, audio devices, cameras, etc.
3. Medical equipment: Medical equipment requires high volume and reliability, and the high-density and high reliability design of HDI boards meets the needs of medical equipment, such as electrocardiographs, blood pressure monitors, etc.
4. Military industry: Military equipment requires high density design and signal integrity for electronic devices, and HDI boards are suitable for military radar, navigation equipment, and other fields.