HDI PCBs
What are HDI PCBs?
HDI PCBs (High Density Interconnect PCBs) are one of the fastest-growing technologies in the circuit board industry. Compared to traditional boards like single-sided or double-sided PCBs, HDI boards offer a much higher circuit density. They feature smaller vias, finer capture pads, and higher connection pad densities, enabling more compact and sophisticated designs.
Benefits of HDI PCBs
The advanced design of HDI PCBs allows for significantly greater component density on both sides of the board when needed. Thanks to the use of blind and buried vias as well as microvias with smaller diameters, designers can place components closer together, improving signal transmission speed and reducing signal loss or delays.
HDI PCBs are extremely compact, often requiring fewer layers than conventional multilayer boards. For example, an 8-layer through-hole PCB can often be replaced by a 4-layer HDI PCB without sacrificing - and often improving - performance. In short, HDI boards deliver outstanding functionality in a smaller, more efficient package.
HDI PCB Manufacturing
The manufacturing of HDI PCBs requires specialised equipment and processes. Laser drilling is essential for creating the tiny microvias, which are critical to the board’s high-density design. The lamination process is also more sophisticated, as these boards are built with densely routed multilayer constructions. While more complex to produce, the end result is a cutting-edge circuit board ready for today’s most advanced electronic devices.
Applications of HDI PCBs
HDI PCBs are used across a wide range of industries and technologies, including:
- Smartphones and tablets
- Gaming consoles and handheld devices
- Medical equipment, such as imaging systems with miniature cameras that deliver superior picture quality for diagnostics
- Wearable devices and compact consumer electronics
Their small size, excellent performance, and versatility make HDI PCBs the preferred choice for many high-tech applications.
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ABL Circuits have offered a state of the art PCB Manufacturing Service for over 40 years.
ABL Circuits Ltd Icknield Way,
Baldock Hertfordshire, SG7 5BB
United Kingdom
