How China HDI PCB Manufacturer In Shenzhen Design HDI PCB (2022 Guide)?

How HDI Technology is Beneficial for Modern-Day Technology?

With the starting of the 21st century the technology race had started.

With every passing day, HDI PCB became more and more elegant and advanced.

Hence, today we are standing in a world which totally depends on this technology.

Everything, whether it belongs to kitchens or offices, we depend on this modern technology.

Furthermore, the development of this technology totally relies on PCBs.

The industry of PCB has made changes because of the advancements in modern electronics.

So, all these requirements led the manufacturers to design HDI PCBs.

When manufacturing high density interconnect (HDI) MPPs, a number of functional features are taken into account:

  • The track density is increased by reducing the overall width of the conductors and the gaps between them;
  • A variety of layered multilevel vias are applied, including blind and blind holes;
  • Dielectrics of the ultrafine type RCC are used.

Drivers for the HDI Board Industry

Among the main factors is the need to simultaneously increase the number of leads of complex components, interlayer connections and reduce the total dielectric area.

Reducing the number of output components, as well as body miniaturization are other factors influencing the relevance of the development of HDI technology.

Application area

  • Highly sophisticated mobile devices
  • Special military systems
  • Compact surveillance/tracking systems
  • Highly sophisticated multimedia devices
  • Portable Medical Sensors and Detectors

Design capabilities

High-density PPMs consist of a certain number of sequentially alternating conductive patterns and dielectric layers.

The main difference between HDI and conventional multilayer PCBs is the use of ultra-thin foil and foil material with a small dielectric thickness.

The average width of the conductors in the plate is 0.1 mm.

As a result, it is possible to produce various elements of high-resolution topology.

In some MPP models, dielectric materials based on unreinforced (fiberglass) epoxy resins are used in the manufacture. Such PCBs are called RCC (Resin Coated Copper Foil).


When creating a high-density MPP, depending on the required technical characteristics and operating nuances, glass fiber laminate is used:

  • FR4 140 ˚glass transition temperature –  foil thickness 18-140 microns.
  • FR4 170 ˚glass transition temperature –, whose foil thickness is 18-105 microns.
  • FR4 Halogen Free –  with 35-micron foil, etc.

Features of HDI Production Technology

HDI boards are often made by layer-by-layer growth and/or pairwise pressing.

What is the reason for this? This is due to the fact that there is a need to create two different types of vias in the board structure:

  • Buried– between the inner and outer layers (Buried);
  • Blind– between the inner layers (Blind).

In terms of production equipment, modern high-density MPCs are created using lasers.

At the same time, laser drilling of the outer, inner layers contributes to the formation of blind laser micro-holes, which are sequentially covered with the following layers and turn into blind holes. If paired pressing occurs, holes are drilled and plated.

HDI PCB Assembly

HDI PCB Assembly

The use of combined and subtractive methods became possible after the development of technologies for the production of thin foil.

As a result, lining dielectrics with thin foil (5-12 microns) has significantly reduced prices for HDI boards.

Basically, HDI PCBs are a highly advanced form of this industry.

And, China HDI PCB manufacturers in Shenzhen are essential for sleek and stylish electronic designs.

And they are creating these high-tech products for all the modern technology needs.

HDI PCBs are very beneficial for drastically smaller devices.

You can clearly notice that the latest laptops and computers are sleeker and lighter.

Your smartphones are even extra strong and powerful in comparison to your laptop.

You can easily solve your professional problems anywhere and anytime using these latest.

It does not matter where you are in the office or home you have always connected to your official meeting.

You can handle your business dealings even during the flight. All these modern electronic developments have become possible because of the HDI PCBs.

Hence, HDI technology is core and very advantageous for modern electronic devices.

What is HDI PCB?

HDI PCB boards are today’s rapidly growing technologies in the PCB industry.

Actually, HDI PCBs are higher circuitry density circuit boards in comparison to traditional PCBs.

HDI stands for High-Density Interconnect. They are PCBs with an extra number of interconnections.

But they occupy minimal space.

As a result, it causes miniaturization of the circuit boards.

In China HDI PCB manufacturers in Shenzhen place all the components extremely close, it remarkably reduces the space.

But it does not affect the functionality of HDI PCBs.

Moreover, when we describe more clearly about HDI PCBs, then actually it is a PCB which have an average of 120 to 160 pins per square inch.

The design of HDI in fact integrates versatile routing and placement of dense components.

In an HDI design, manufacturers reduce the copper drill.

Dancer circuitry has actually developed with the implementation of,

Additionally, this latest technology of HDI has made popular the technology of Microvia.

All and all, the HDI technology in PCBs actually have,

  • Minor vias
  • Lines
  • Capture pads
  • The density of higher connection pad.

This technology is extremely beneficial to maximize the performance of electrical appliances.

Moreover, it is also really helpful in order to reduce the size and weight of electronic devices.

Hence, HDI PCBs are an ideal choice for costly laminated boards and high-layer count.

Building Purposes of These Innovative and Non-Conventional HDI Boards?

China HDI PCB manufacturers in Shenzhen are producing high-tech PCBs for the latest and sleek design devices.

Additionally, for the perfect manufacturing of HDI PCBs manufacturers actually needs highly exceptional procedures and equipment like,

  • Plugging
  • Laser drills
  • Laser direct imaging
  • Sequential lamination cycles.

Additionally, HDI PCB boards consist,

  • Tighter spacing
  • Thinner lines
  • Tighter annular ring.

These high technology PCBs also use materials with the extra slim specialty.

PCB manufacturers need serious investment and additional time in manufacturing equipment and processes for the effective, successful production of HDI boards.



Why HDI PCB Have Been Developed?

PCB manufacturers had first developed for the purpose order to provide high performance and computational power in just a small envelope.

Manufacturers actually wanted to provide powerful telecommunications to their customers.

Moreover, they also desired to discover extra complex electronic circuitry in the much smaller and denser package.

So, PCB manufacturers developed these HD PCBs to meet all the above needs and demands.

In fact, China HDI PCB manufacturers in Shenzhen are also producing this most wanted latest technology of HDI PCBs.

But another important key driver in the evolution of HDI PCB was trended in the technology of integrated circuits (IC).

This technology performed as a forcing function in order to re-examine that how PCB interconnects and layouts had actually designed.

Following are the key trends in the technology of IC:

  • The shrinkage size of gates
  • Power consumption
  • Reduce operating voltage level in order to control
  • Die size-reduction
  • High level of gate integration (extra transistors per unit area during die)
  • Fast signal surge times (high clock rate and operating frequency).

What are Materials and Lamination China HDI PCB Manufacturer in Shenzhen use?

Basically, this latest multilayer technology allows designers to add consecutively all pairs of layers in order to create a multilayer PCB.

Moreover, making use of laser drill to fabricate holes in internal layers also allows for,

  • Imaging
  • Plating
  • Etching prior to pressing.

Furthermore, this additional procedure has known as the sequential build-up.

PCB creation makes use of solid filled vias also allows for,

  • A stronger interconnect
  • Better thermal management
  • Increases the reliability of the board.

China HDI PCB manufacturers in Shenzhen and many other HDI PCB manufacturers use resin-coated copper for developing HDI PCBs.

Basically, this resin-coated copper had actually developed particularly in order to,

  • Longer drill times
  • Assistant with poor hole quality
  • Allow for thinner PCBs.

In fact, resin-coated copper also has the ability to ultra-thin copper foil and has an ultra-low profile.

This is an ideal material that has been chemically primed and treated for the finest and thinnest line and spacing technology.

Implementation of dry resist to laminate yet makes use of heated roll method to apply the resist to the basic material.

However, this has known as an old technology process.

But manufacturers still recommend preheating the material to a desirable temperature before the lamination process for creating HDI boards.



What are the Advantages of China’s HDI PCB Manufacturer in Shenzhen?

Electronic designers have now recognized that by making use of HDI technology they can make an outstanding increase in packaging density.

Generally, this latest and highly advanced technology reduces the overall requirements of space. Hence it also has the ability to reduce the layers and board size.

China HDI PCB manufacturer in Shenzhen has acknowledged that HDI technology has the capability to make connecting and routing easy and simple.

And this latest technology is especially helpful while manufacturers routing between pins.

Furthermore, HDI PCBs can provide many benefits for electronic manufacturers and designers.

Some of these are:

Compact design:

In comparison to standard PCBs, HDI boards can minimize the number of layers as well as the size of the board.

Additionally, it also has a high wiring capacity. So, HDI PCBs provide an ideal compact design.

Exceptional versatility:

This HDI technology is ideal for reducing the,

  • Size
  • Weight
  • Space

In addition, HDI circuits are more reliable when it comes to performance.

Extremely reliable:

The application of stacked vias has made HDI boards an ideal choice for extreme environmental circumstances.

So, these boards are highly reliable for the utmost weather conditions.


This highly advanced technology has the ability to reduce the greater number of layers into fewer.

So, this capability can reduce the overall costs. It can also reduce the number of layers without compromising its quality.

Better integrity for signals:

HDI PCBs includes,

So, it can help to place all components extremely closer and so it cuts down the path length of signals.

This highly efficient technology can reduce the reflection of signals and hence has the ability to extremely improve the quality of signals.

What are the Applications of China HDI PCB Manufacturer in Shenzhen?

China HDI PCB manufacturers in Shenzhen are making use of HDI PCB boards in creating,

  • Smart
  • Light
  • Sleek
  • Simple electronic appliances.

Furthermore, HDI technology has made them able to pack high technologies into just a small packet.

Here are some examples of HDI PCB applications:


Designers are making use of HDI PCB boards in,

  • Aircrafts
  • Missile systems
  • Defense applications.

Because this technology can provide greatly reliable operation even in utmost weather conditions.

Medical and healthcare:

  • Implanted appliances like
  • Cardiac pacemakers
  • Hearing aids are greatly beneficial external devices.
  • All the medical-related devices make use of HDI circuits.

Consumer electronic devices:

China HDI PCB manufacturers in Shenzhen are using this smart technology in the latest consumer electronic appliances. additionally, these devices are

  • Smartphones
  • Laptops
  • Tablets, etc.

Hence, today manufacturers are making use of HDI smart technology in all touch screen devices for highly increased performances.

And they are also making use of this latest technology to reduce the weight and size of all the consumer devices.


Basically, manufacturers of China are producing more sleek and lightweight consumer electronic devices by using HDI circuit board technology.

These advanced appliances actually become our basic needs and we cannot imagine living without them.

HDI PCB boards are changing your dreams into reality.

They are cost-effective and reduce the overall size and weight of devices. China HDI PCB manufacturers in Shenzhen have become world-famous for their extremely good products. Moreover, they are reliable in every field of electronics.

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