High Density Interconnects (HDI)

HDI PCB Manufacturer

PCBs with High Density Interconnect technology are now commonplace in the miniature electronic products like tables, wearables, and smart devices. Rush PCB Inc incorporates HDI technology in the basic PCB fabrication and the way the components connect to it.

However, limiting the HDI technology to just the interconnections between various printed circuit boards is not doing it justice. The technology involves special processes in the fabrication of the board itself, and to the connections between the SMT components present on its surface.

Fine Pitch Components

PCB miniaturization requires using surface mount technology components with fine pitch. Mounting these components is possible only with HDI technology, as they require:

  • Densely packed traces and pads on a PCB
  • Multiple layers on a single PCB
  • Micro-vias for carrying signals between PCB layers
  • Tight tolerances on PCB features

Apart from helping to reduce the size and weight of boards, HDI technology also provides a substantial increase in the density of surface mount components on the PCB. Additionally, mounting miniature integrated circuits like flip chips and BGAs is possible only using the HDI technology.

Design Advantages HDI

With HDI technology reducing the size and weight of an assembly, designers can fit it into smaller spaces than they can with a board of a conventional design. The lower mass also reduces the chances of the assembly of damage from mechanical vibrations and shocks.

Considerations for HDI Assembly

For an HDI PCB, placement of SMT components requires greater accuracy than for conventional PCBs, owing to much higher component density and finer pitch of the components.

For instance, Flip Chips and BGAs require using special soldering techniques and additional process steps during assembly, rework, and repair.

HDI at Rush PCB Inc

If you require any assistance with HDI PCB design and assembly, our engineers are ready to help you. For more information on HDI PCB and assembly, simply contact us at 1 408 496 6013 or write to us at sales@rushpcbinc.com.

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RUSH PCB Inc. specializes in higher layer count PCBs, exotic materials, laser drill micro-vias, blind/buried vias, as well as conductive and non-conductive via fill.