HDI PCB Design

HDI PCB Design

HDI PCBs are found in complex electronic devices that require excellent performance while maximizing space. They also serve in medical equipment like diagnostic and imaging devices.

Using HDI PCBs requires careful planning. The design must be precise, especially when it comes to microvias. This involves determining the layer count needed to route signals by utilizing the interface and direction counts from the largest IC.

Type I

Unlike other PCBs that contain multiple layers, Type I HDI boards have only one layer and two cores. hdi pcb manufacturer This allows them to save space while reducing the cost of materials. It also offers superior electrical performance and improved reliability. This technology is often used in small electronic devices and is suitable for harsh environments. In addition, it is ideal for medical equipment such as monitors and diagnostic machines.

In order to increase circuit density, Type I hdi pcb design requires tighter spacing between the traces and pads. These specifications require precise design and manufacturing to achieve optimum results. This includes ensuring that the design has controlled impedance, low crosstalk and adequate current carrying capacity. Additionally, the metallization process should ensure that all vias are properly formed. This helps to minimize the possibility of signal integrity problems, manufacturing defects, and power loss.

High-density routing requires the use of a variety of PCB vias, including blind and buried vias. Each type of via has its own advantages and disadvantages, but they all share the same goal: to create a more dense layout. The placement and size of these vias can have a significant impact on the board’s manufacturability, thermal management, and electrical performance. This is why it is important to choose a fabrication house that has the expertise and specialized equipment required to produce Type I boards.

Via Metallization

The vias in an HDI board must be plated and filled with one of the many fill types to make them functional. This is done in a 10- to 12-step process that can be time-consuming and labor-intensive. It is also essential to select a fabrication partner that has the experience and specialized equipment needed to ensure that your product is manufactured quickly and accurately.

Routing Efficiently

The complexities of the layout and microvias of an HDI PCB can be intimidating, but the design procedure is relatively simple. This enables designers to reduce manual routing steps and speed up the production process, while increasing the overall reliability of the final product. In addition, the high electrical performance of HDI PCBs can reduce the time and costs of testing and troubleshooting.


The smaller aspect ratio and higher quality construction of microvias improves the reliability of an HDI PCB, allowing it to withstand a wide range of environmental conditions. These features also allow for more components to be placed in a single layer and reduce transmission delays HDI PCB Manufacturer Supplier and power losses. This increased reliability can lead to reduced production costs, faster delivery times and a shorter time to market.

In addition to the benefits outlined above, there are several other advantages of using an HDI PCB. These include:

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