Category: HDI / Blind & Buried Vias
How to Choose HDI PCB Materials

How to Choose HDI PCB Materials

Choosing the right dielectric material for a PCB is important no matter what application you’re working. However,  the stakes are higher with High-Density Interconnect (HDI) technologies. They’re small, light, and powerful, yet they have specific construction...

read more
The Advantages of HDI PCBs and their Applications

The Advantages of HDI PCBs and their Applications

The digital world is getting complex 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...

read more
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...

read more
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...

read more
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...

read more
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...

read more
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. In this article we will cover: What is a via? Aspect ratio for vias in PCBs Aspect ratio chart...

read more