Category: HDI / Blind & Buried Vias
The Advantages of HDI PCBs and their Applications

The Advantages of HDI PCBs and their Applications

The digital word is getting bigger hour by hour whereas the hardware associated with it is getting drastically smaller. The advantages of HDI PCBs are numerous, starting with more interconnections in smaller areas. This results in the miniaturization of boards that...

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How to breakout a .4mm BGA

How to breakout a .4mm BGA

One thing PCB designers will all agree on is that to breakout a BGA, you need precision and discipline. When you breakout a BGA, you basically apply a fanout solution. You route traces from those fanouts to the perimeter of the device prior to general routing of the...

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PCB Stack-Up: Plan, Design, Manufacture & Repeat

PCB Stack-Up: Plan, Design, Manufacture & Repeat

If Sierra Circuits was making burgers, we would make the world’s best burgers, just like we make the world's best PCBs. We would prepare each layer of your burger with care and tenderness, just like the layers on our PCB stack-up. Our burgers will come with different...

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WEBINAR: An HDI Class with Sierra Circuits

WEBINAR: An HDI Class with Sierra Circuits

Our first HDI webinar is entitled ''An HDI Class with Sierra Circuits.'' We recorded it at our Bangalore office in June 2019 with Vadiraj Kulkarni, Senior PCB Consultant. As the name suggests, this HDI webinar is actually a class. During the recording, we had our...

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How to Avoid Crosstalk in HDI Substrate?

How to Avoid Crosstalk in HDI Substrate?

High-Density Interconnection or HDI substrates are multi-layer, high-density circuits with features including the fine line and well-defined space patterns. Increasing adoption of HDI substrates enhances the overall functionality of PCBs and limit the operational...

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How PCB Vias Interconnect Circuit Board Layers

How PCB Vias Interconnect Circuit Board Layers

Vias are miniature conductive pathways drilled into the PCB to establish electrical connectivity between the different layers. Basically, a via is a vertical trace in a PCB. Before we dive deep into a via hole, I will just define in simple terms what a PCB is. PCB is...

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How To Breakout a .5mm BGA

How To Breakout a .5mm BGA

When you breakout a BGA, you basically apply a fanout solution and route traces from those fanouts to the perimeter of the device prior to general routing of the PCB. Here's an example of how we did a .5mm BGA breakout. Just like we mentioned in the .4mm BGA breakout...

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HDI PCB Quiz #2

HDI PCB Quiz #2

HDI PCB is a complex technology that uses blind, buried and micro vias. HDI is characterized by its high density of components and routing interconnections, which can pain a pain to design for. Can you handle it? Take the quiz!    ...

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