Understanding HDI Board In PCB

About HDI Introduction

　　High-Density Interconnector (HDI) PCBs are advanced printed circuit boards characterized by a higher wiring density per unit area compared to standard PCBs. They incorporate fine lines, microvias, and often multiple layers, which allow for more compact and efficient designs.

Key Features of HDI PCBs

　　•Blind / Buried Microvias
　　Small holes that connect different layers, enabling higher density and reducing the space needed for routing.

　　•Smaller Trace Width and Space
　　HDI PCBs can accommodate smaller components with tighter lead spacing, making them ideal for compact devices.

　　•Layer Count
　　HDI boards often have multiple layers (4 to 20 or more), which support complex circuits and designs.

　　•Impedance Control
　　Enhanced design capabilities for controlled impedance, crucial for high-frequency applications.

Key Features of HDI PCBs

　　•Consumer Electronics
　　Smartphones, tablets, and wearables benefit from HDI's compactness and functionality.

　　•Automotive
　　Used in advanced driver-assistance systems (ADAS) and infotainment.

　　•Medical Devices
　　Essential for compact, reliable medical equipment.

　　•Consumer Electronics
　　Ideal for networking devices and communication systems.

Advantages of HDI PCBs

　　•Space Efficiency
　　Allows for smaller device footprints.

　　•Performance
　　Enhanced electrical performance due to shorter paths  and reduced parasitic effects.
　　•Versatility
　　Suitable for various applications, from consumer products to industrial systems.

Overall, HDI PCBs are a vital technology for modern electronics, enabling the development of smaller, more powerful devices.