ABOUT HDI PCB
The HDI application is one of the fastest-growing technologies today. The acronym stands for High-Density Interconnect, which comes with several interconnection points enclosed within a small space that result in reduced circuit boards – though functionally not affected!
In other words, a PCB with about 120-160 pins per square inch is an HDI. So the design of the HDI integrates versatile routing and density component placement. This PCB type became popular because it made micro via technology famous – an ideal option for blind vias, micro vias, or buried vias.
THE 3 WAYS TO DESIGNING A SUCCESSFUL HDI PCB
There are three ways you can design HDI prototyping boards that will yield success every time.
And they are as follows:
1. Manufacturing Process
Before you begin your HDI PCB design, you first need to understand the HDI manufacturing process parameters. And to do that, you need to consider three factors:
To have a successful HDI PCB, you must know the aperture ratio that is appropriate for your fabrication.
For the best results, keep your aperture size proportional to how thick or thin you want your board.
The stack-up of the HDI PCB has to get classified based on specific types. For instance, Non-stacked 2-HDI (with buried holes), Stacked and resin-filled 2-HDI, 1 stacked and nonresin filled2 -HDI with buried holes).
The process flow for the 4-layer and 6-layer HDI boards are very similar to standard PCBs, with one major difference: drilling holes sequencing.
When you use HDI PCB layouts in your projects, it’s important to be aware of the maintainability and stability.
You must consider the tracking process, including the tracking’s consistency, the least line width, and regulating safe spacing.
HDI PCB CAPACITY (UP TO 32 LAYERS)
The Different Types of
HDI PCB Structures
We can produce up to 32 layers at a time. So you’ve got plenty of options depending on your specific needs! We created this table that breaks down all our HDI PCB structures for quick reference:
|HDI PCB Structures||The Various categories of Micros Vias||Large-Scale Production||Small to Medium-Scale Production||Prototype||Available|
|1+N+1||Blind vias||Yes||Yes||Yes||Over 4 layers|
|2+N+2||Blind/Buried staggered vias||Yes||Yes||Yes||Over 6 layers|
|2+N+2||Blind/Buried stacked vias||Yes||Yes||Yes||Over 6 layers|
|3+N+3||Blind/Buried stacked vias||/||Yes||Yes||Over 8 layers|
|3+N+3||Blind/Buried stacked vias||/||/||Yes||Over 8 layers|
WHAT IS THE FUTURE FOR HDI PCB?
HDI PCBs are creating a lot of possibilities in a wide range of industries. And it can only develop as time passes.
So, it’s a technology that you should consider—especially if you need something that will save you time and boost your efficiency. Plus, the demand for the HDI PCB increases regularly. So, we can tell that it’s promising.
Are you interested in getting more information about HDI PCB?
THE BENEFITS OF USING HDI PCB
THE DIFFERENCE BETWEEN STANDARD AND HDI PCBs
The standard PCBs use through-holes, which means they have a high stray capacitance and a colossal discontinuity in impedance.
The HDI design employs buried vias and small blinds. These two factors significantly reduce stray inductances and capacitances, which in turn provides excellent signal integrity performance. In addition to that, other vital differences between the standard PCB versus the high-density board are:
APPLICATIONS OF THE HDI PCB
The relationship in monetary terms with a supplier is usually thought to be zero-sum. This means that whatever the customer or supplier saves the other losses.
However, when working with OurPCB something different happens.
The effort that this company and his dedicated employees put in reducing costs for his clients, without dismissing quality, is reflected in an exponential increase in production and therefore in the income of OurPCB. And that is called a WIN-WIN relationship, very difficult to find nowadays.
We have been working with OurPCB since 2006 and the treatment, quality and price have always been excellent.
OurPCB have manufactured our PCBs for over 7 years.
Back then, we chose them as our supplier because of their professionalism, their excellent price, but most importantly, because we felt that they really cared about their customers.
They’ve never failed us since and have helped us tremendously in growing our business.
We've selected OurPCB among a few companies in China. We tried first other PCBA manufacturers but now OurPCB became into our main supplier. We're really glad to work with them. I also had the pleasure to work with Ellie Yao who has dedicated the right time to every question or issue I asked for.