HDI PCB - PCB Assembly,PCB Manufacturing,PCB design

With the rigorous and precise process in our factory, you know that your purchase will be of high quality.

Advanced Testing Technology To Ensure Quality such as AOI Test, E-Test, X-RAY, Impedance Control.

As a customer-centric company, we are committed to delivering the highest quality products and services at competitive prices (especially multilayers PCBs).

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:

Aperture Ratio

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.

Stack

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).

Process Flow

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.

2. Layout

When you use HDI PCB layouts in your projects, it’s important to be aware of the maintainability and stability.

3. Tracking

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)

Feature

Capacity

Number of Layers :

1 - 32 layers

Time of Production:

1 day - 4 weeks

Quality Grade:

Standard IPC 2

Order Quantity:

1pc - 10000+pcs

Copper Weight (Finished):

6oz/10oz

Board Size:

Min 50*50mm | Max 450*406mm

Material:

FR4 standard Tg 140°C,FR4 High Tg 170°C, FR4 and Rogers combined lamination

Board Thickness:

0.2mm - 10mm

Silkscreen Color:

White, Black, Yellow

Solder Mask Color:

Green, Black, Blue,White, Red, Yellow

Min Tracing/Spacing:

2.5mil/2.5mil

Solder Mask Sides:

As per the file

Silkscreen Sides:

As per the file

Max Exponents of Blind/Buried Vias:

Stacked vias for 3 layers interconnected, staggered vias for 4 layers interconnected

Min Annular Ring:

4mil, 3mil - laser drill

Other Methods:

Flex-rigid combination Via In Pad Buried Capacitor (only for Prototype PCB total area ≤1m²)

Surface Finish:

HASL- Hot Air Solder Leveling Lead Free HASL - RoHS ENIG - Electroless Nickel/Immersion Gold - RoHS Immersion Silver - RoHS Immersion Tin - RoHS OSP - Organic Solderability Preservatives - RoHS

Min Drilling Hole Diameter:

6mil, 4mil - laser drill

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

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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

Better Signal Veracity

HDI integrates with a blind via tech and via-in-pad to put PCB components together without cutting down the signal path length.
HDI also eliminates Via stubs, which limits signal reflection and boosts the quality of signals.

Affordable

An 8-layer PCB can reduce to a 6-layer PCB. By doing so, you'll still maintain an exceptional quality level and brightness in your product.

Compact Design

The grouping of micro, blind, and buried vias reduces the requirement for board space.

Better Signal Veracity

The integration of stacked vias makes HDI boards highly resistant to extreme environmental conditions because of the super shield.

Extraordinary Adaptability

The HDI board is a perfect solution for those looking to save space and weight while still maintaining excellent performance.

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:

Through-Hole PCB (Standard):

HDI PCB

It has a lower component density per square inch:

HDI has a higher component density per square inch compared to standard PCBs

Uses mechanical drilling:

HDI uses direct laser drilling

Standard PCBs have heavier and larger boards:

It has lighter and smaller boards with increased functionality

Comes with a high number of layers:

Features a low number of layers

Standard PCBs use through-holes:

HDIs use microvias, blind, and buried vias

APPLICATIONS OF THE HDI PCB

Automotive

Technology is having a large effect on the automotive industry. It has pushed engineers to work towards making cars more enjoyable for drivers and saving space in vehicles.

Industries

Your VR headset, tablet, smartwatch, laptop entertainment systems, smartphone, or home appliances. All these gadgets have an HDI

Health Care Sector

HDI PCBs have provided great possibilities for the medical field. For example, they play a large role in diagnosing diseases and are an excellent source of equipment for pacemakers such as those used to diagnose heart disease.

Deitres

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.

Gamboa Firmware

We have been working with OurPCB since 2006 and the treatment, quality and price have always been excellent.

Smartrek

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.

PONCE

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.

ABOUT HDI PCB