Dependable Backplane PCB Manufacturer in China

The Best Backplane PCB Manufacturer in China

Are you looking for a premier backplane PCB manufacturer? PCBMay is your perfect choice. We offer the best quality backplane PCB. These products come with a wide range of designs and configuration selections to meet your business requirements.

PCBMay is a professional manufacturer for more than ten years. As a professional manufacturer, we aim to give you the highest customer satisfaction level. Thus, we design a backplane PCB with advanced features.

We have a skillful and highly knowledgeable engineering team. Our engineers are experts in component sourcing, fabrication, assembly, and production of backplane PCB. PCBMay produces products through our advanced manufacturing technology.

Our backplane PCB are large printed circuit board formats. This product serves as a backbone so you can connect various PCBs. Therefore, you can form a computer bus. PCBMay backplane PCB does not usually contain active components.

PCBMay also manufactures backplane PCBs that function as a connection between active PCBs. These products feature high mechanical stability and strength. It also has a high-signal integrity design, controlled impedance, buried vias, back drilling, and high speed.

We design a backplane PCB that offers high reliability in connecting multiple PCBs. Therefore, our backplane PCBs are perfect for military, computing, and industrial applications. You can find the correct backplane PCB at PCBMay.

Choose PCBMay as your no.1 supplier of high-quality backplane PCB. We are an expert in manufacturing high-quality, authentic, and genuine products. Our wide range of backplane PCBs will surely meet your requirements.

We also offer a competitive price and low MOQ to support your starting business. All our products have qualifications from ISO9001, ISO14000, UL, and more. Here in PCBMay, we do not produce defective products. Thus, you can guarantee high-quality backplane PCBs.

Aside from backplane PCB, we also manufacture Rogers 3003, Rogers 5880, Rogers 4360, Rogers 3006, Rogers 3010, IC Substrate, Surface finish PCB, flex PCB assembly, Power supply PCB, Inverter PCB, and more. PCBMay is your one-stop solution for your PCB needs.

Enquire now for your next backplane PCB orders!

Backplane PCB : The Ultimate FAQ Guide

Backplane PCB is a connector printed circuit board which is a very important electrical part. The use of backplane PCB is increasing in modern days for different requirements of the applications, projects, and products.

Backplane PCB provides higher functionality and advantages for PCB fabrication.

PCBMay is one of the expanding manufacturers of backplane PCBs. As the PCB has greater value for fabrication, it requires a delicate manufacturing process and modern technologies.

Whether you are curious to know about this specific printed circuit board or you are interested to know about our backplane PCB facilities, you will find everything here in this informative guide. This guide contains all the information about backplane PCBs.

What Is A Backplane PCB?

A larger format of printed circuit board that is used as a backbone to connect several printed circuit boards together to form a complete computer system is called Backplane PCB.

A backplane PCB is a bunch of electric connectors that are in parallel connection with each other. That way, a pin of a connector is linked to the same pin of all connectors.

Backplane PCB

Backplane PCB generally do not have active components, however, they work as a center of connection for active duty printed circuit boards. This PCB includes features like high-speed integrity materials, blind vias, maintained impedance, back drilling, etc.

How Does A Backplane PCB Work?

Backplane PCB works as a group of electric connectors. The connectors are in a parallel connection with each other. Every pin of every connector connects with a common pin, that way all the pins are connected to the same pin.

Basically, Backplane PCB is a special kind of PCB that works as a supporting structure for connecting some other printed circuit boards. It adds stability and mechanical strength to the PCB board.

It also acts as a plane for integrating daughterboards. Daughterboards are other system components of the board.

Different daughterboards have different functions to perform on a board. Backplane PCBs are widely used and very versatile. The reason behind this is the ability to easily interchange different cards.

There are some other facts like modularity, scalability, and many more which make backplane PCBs a great choice. A signal from an external server enters the system, then enters a daughter card, and finally into the backplane PCB. The backplane PCB controls the signal as required to the output.

We all want faster speeds and that leads to different problems. This increased speed of data transmission and small dense data pipe causes signal integrity reduction. In short, high-speed data transfer occurs in a small place causing a reduction of signal integrity.

What Is A Backplane PCB Motherboard?

We can use Backplane PCBs with a plugin a system host board which is SHB or a single-board computer that is SBC. This combination of backplane PCBs and SHB or SBC functions the same as a motherboard. This kind of backplane motherboard provides functions like memory, processing power, slots for plugin cards, and I/O, and many more.

Most backplane PCBs provide 8 slots, but nowadays some backplane motherboards are capable of providing more than 8 slots. Most manufacturers offer a limited number of individual connection types as technology develops and as required. The availability of particular slot types is also decreasing in backplane motherboards.

Backplane PCB Motherboard

A backplane motherboard has connections for expansion cards. Backplane motherboards are also used in corporate network routers. This is a large router with modules and expansion boards for increased communication.

What Are The Types Of A Backplane PCB?

Backplane PCBs have printed circuit boards that contain expansion slots or sockets for connecting with other printed circuit boards. There are basically two types of backplane PCBs; one is active backplane and the other is passive backplane. Both of them serve quite well in industries.

Types Of Backplane PCB

●    Active Backplane PCB

An active backplane PCB contains motherboard circuitry and bus control. It contains slots and required circuitry to maintain the communications in between the slots of the board. Active backplane does not contain processor complex components like CPU which is the central processing unit, cache, or chipset.

●    Passive Backplane PCB

However, a passive backplane PCB includes circuitry for bus connections. In some cases, it also contains drivers and buses. Mainly it has the bus connectors and a little or no additional circuitry.

Expansion boards connected to the passive backplane handle all the communication between the boards. There can be one or more than one expansion board in a passive backplane PCB. Industrial passive backplanes have bridges that associate two buses which can be the same type or different types.

What Is The Manufacturing Process Of A Backplane PCB?

Backplane PCB goes through a different manufacturing process. One needs to follow all the steps while manufacturing a backplane PCB. The procedure of manufacturing a backplane PCB is very delicate.

Backplane PCB is heavier and thicker than usual printed circuit boards. And so its capacity of heat endurance is higher too. Backplane PCB has a slow cooling speed, for this reason, the manufacturer needs to lengthen the length of the reflow weld furnace.

The copper layer of the backplane PCB needs to be moderately thick to give the required current when a big power application is plugged into it. As there is increased weight in the backplane PCB, the conveyor belts and other conveyor methods should be able to transmit safely.

Manufacturing Process Of A Backplane PCB

The number of holes in a backplane PCB is much more than conventional PCBs as it is thicker. These holes tend to cause an outflow of the processing fluids. The holes need to be cleaned using high-pressure air blowing and flushing.

The manufacturer needs to carefully align the layers of a backplane PCB since there are generally many layers required for applications. Interlayer-to-bit necessities tolerance convergence, large backplane size makes this convergence much more demanding.

In order to increase the effectiveness and repeatable control of the backplane PCB impedance, the manufacturer must focus on thickness, etching line widths, tolerance, etc. Back drilling is also a very crucial part of manufacturing a backplane PCB. Some other manufacturing processes need to be followed in a backplane PCB.

What Are The Manufacturing Difficulties Of A Backplane PCB?

As the backplane PCB increases signal transfer quality, ease of assembly and production, data quality, the challenges to manufacture it have also increased. For the higher functionality of these backplane PCB boards, it is actually tough to laminate all the components on a small board. As so Manufacturers face various difficulties to fabricate a backplane PCB.

Manufacturing Difficulties Of A Backplane PCB

Some common features where the manufacturers face difficulties are as follows.

• PCB pressing
• PCB thickness
• Matching impedance
• High-density etching
• Back drilling vias
• Alignment of the connectors
• Aspect ratio
• Layer assembly
• copper anodic filament or CAF
• impractical stackup
• High forced compression

Well, there are some more difficulties to manufacture a backplane PCB. However, with advanced technologies, the difficulties can be solved.

What Is The Thickness Of A Backplane PCB?

One of the main features of a backplane PCB is the larger size of the board. With its large size, it comes with a lot more functions too. For working with this variety of functions, backplane PCB requires dealing with the factor thickness specifically.

Thickness Of A Backplane PCB

A backplane PCB needs to be thicker than a normal PCB as it has to deal with more mechanical stress. It is also much thicker from its structure itself in general. A typical backplane PCB is as thick as 2.0 mm to 4.0 mm which can be increased.

backplane PCBs yet can have a thickness of 4.0 – 6.0 mm. Not necessarily it can not be thicker than 4.0 – 6.0 mm., sometimes it is more than this. The thickness can go up to 10 mm in fabricating a backplane PCB.

What Are The Connectors In A Backplane PCB?

Connectors are a very important feature of a backplane PCB. These connectors are a kind of electric part. Several printed circuit boards connect with each other and work together within a computer system using these connectors.

Connectors in the backplane PCB provide a stable electric connection among the components of the board and the PCBs. These connectors have coplanar, high-performing right angle, mezzanine interconnects. They enable the backplane PCBs for better electric performance as well as high signal integrity.

There are mainly three types of connectors used for backplane PCBs.

●    Active Backplane PCB Connector

These connectors are applied in boards with motherboard circuitry and bus controls. Boards with complex processor components can not use active connectors.

●    Passive Backplane PCB Connector

This type of connector is standard for printed circuit boards with drivers and buses. They assist to associate with the operating system. The connectors also help in transferring data.

●    Butterfly Backplane PCB Connector

These connectors lessen data latency and production cost for a backplane PCB. Switchless backplane PCBs use butterfly connectors.

To name some backplane PCB connectors, there are IEC 60603-2 two-piece connectors,

Hard Metric Connectors, rack and panel connectors, DIN 41612 Connectors, PC / 104 Connectors, High Speed / Modular Connectors, etc.

How Are The Connectors Used In A Backplane PCB?

Backplane PCBs use different kinds of connectors to transfer data with high speed and more clarity. Connectors also improve data rates and lessen the rise of signals. They help to mate the printed circuit boards.

Connectors In A Backplane PCB

These connectors can transfer  6.25 – 56 G/ps at accurately developed and improved pattern performance backplane PCBs. Mainly printed circuit boards for computerized devices use backplane connectors. In the manufacturing industries, high-reliability applications need to use backplane connectors.

Minicomputers tend to use Wire-wrapped connectors. Heavy components like peripheral devices and video cards apply backplane connectors. It works as a safety part to protect the backplane PCBs from damages and connection problems.

How To Design A High-speed Backplane PCB?

High-speed backplane PCBs need more delicate care while designing. Crossword interference needs to be taken care of because it has a big impact on signal integration and timing. Some facts to keep in mind while designing a high-speed backplane PCB are as follows.

• To increase the track area, the manufacturer needs to use blind or buried vias in backplane PCBs. It is tough to get equal length and full parallelism in implementation.
• The manufacturer has to control the matching and continuity of the traces’ characteristic impedance.
• To reduce the effect on signal integration and timing, the manufacturer should reserve a common mode termination as well as different termination.
• Manufacturers can use simulation to learn the effect of trace spacing on signal integrity and timing. It can also be used to find the lowest tolerated space. Maintaining trace spacing is important in designing high-speed backplane PCB.

High-speed Backplane PCB

High-speed backplanes can have panel size up to 54 inches, over 70 layers, Dual diameter holes, Blind and back drilled through holes, and heavy copper layers.

What Is Pinout In Backplane PCB?

Pinout in backplane PCBs eases routing on each layer. Pinout in connectors of backplane PCBs should attain the following objectives.

• Pinouts should prevent signals from crossing each other on a layer. If the pinouts work properly, you can diminish a few signal layers.
• As pinout on every connector reaches the routing, it should expand throughout the entire backplane PCB.

What Is The Layout Of A Backplane PCB?

Backplane PCBs connect multiple PCBs in a larger computer system and interconnect them. Backplane PCBs are designed with a lot of nets and connectors in a small space with a variety of functions. This designing process can seem difficult at first.

Layout Of A Backplane PCB

However, it is not so difficult when you follow a basic layout to design your backplane PCB. This layout will help you to manage lots of connections on a large board of small space and limited layer counts. Here is a basic layout of a backplane PCB.

●    Mechanical Demands

To place the connectors properly on the board, you need to use guide pins to make sure proper structural integration and interconnection.

●    Pinout

Find out the pinouts on the connectors of the backplane PCB. It is required to support the routing topology.

●    Layer Count

The backplane PCB requires layers depending on the count of plain layers and signal layers. It can have up to 24 layers and can have several mm thickness to work according to the design requirements.

●    Selecting Material

Backplane PCBs can face a significant loss in data transmission. That is why it is important to select materials with minimum loss laminates along with tight glass weaving.

●    Grounding And Power

You should come up with a grounding strategy to keep the temperature of the backplane PCB low. As backplane PCBs carry higher power to a lot of boards, you should arrange plane layers so that they can provide isolation for the signals.

What Are The Components Of A Backplane PCB?

Backplane PCBs basically do not have active components as they serve mostly as a connector between multiple PCBs. However, they contain small electronic components such as capacitors, resistors, chassis ground circuitry, filters, etc. They also have wire-wrapped sockets and connectors sometimes.

 What Are The Applications Of A Backplane PCB?

As backplane PCB provides a good number of services within a small space and through high-speed signal transmission, it has a lot of applications in different sectors. This PCB connects several PCBs together so it can function more. Backplane PCBs are now used everywhere in different industries.

Medical electronics, communications, smart home supplies, the security industry, industrial instruments, energy, automotive electronics, consumer electronics, and much more use backplane PCBs on a large scale. Not to mention, the applications of this PCB are increasing day by day.

What Are The Advantages Of A Backplane PCB?

You can get more advantages from a backplane PCB rather than an ordinary printed circuit board. Some of the advantages backplane PCB provides are as follows.

●    Thicker

Backplane PCBs contain more layers and so it is thicker. For this reason, it can transfer signals at a high speed along with a lot more benefits.

●    High Heat Capacitor

Backplane PCBs have the capacity for high heat absorption. High heat capacity eases a lot of things.

●    Heavy

As the backplane PCB is thicker, it is heavier as well. It is a high-weight board with an added volume of copper.

●    Much Hole Drill

Backplane PCB carries a lot of drilling holes in order to function accurately as the applications require. And so it is able to have many functions in spite of having a complex structure.

What Is The Capacity Of A Backplane PCB?

Backplane PCB has access to higher functionalities. It is capable of almost everything, in some cases, more than a regular PCB. It is a type of motherboard carrying daughterboards to achieve custom higher functions.

Capacity Of A Backplane PCB

A backplane PCB carries printed circuit boards and distributes the functionality among the boards. The functions include power supply, signal transmission, and many more. Backplane PCB is capable of obtaining the leading position among all the PCBs.

Incorporated with other PCBs, backplane PCB leads the total system and runs it smoothly. Since nowadays electric devices demand an up-gradation on high speed, frequency, functionality, backplane PCBs have the capacity for all these.

What Is Switching In Backplane PCB?

Passive backplane PCB opts for switching in order to obtain interconnection among the multiple printed circuit boards. This switching process helps the PCB fabrication making the connection procedure more convenient. Switches can be used in different topologies with different technologies making the connection easier.

There are actually a lot of switches for backplane PCB fabrication. These switches are of multiple sizes for different backplane PCBs according to the requirements of the application. These different types, sizes, optimization, technologies of switches make the whole fabrication process favorable.

What Via Is Used In Backplane PCB?

Vias is a crucial part of backplane PCB fabrication. There are actually some types of vias that can be used in a backplane PCB. It is important that you select the correct vias for your printed circuit board.

 Vias In Backplane PCB

Backplane PCBs mostly use blind or buried vias. Blind via starts on from an exterior layer and ends in an internal layer. Buried vias lie between the internal layers having no start or finishing point.

As the demand for high speed and high-density backplane boards is increasing day by day, vias are becoming more important. Among different types and technologies of vias, you should apply the via according to the demand of your application.

The following video can give you more ideas about vias in backplane PCB.

What Is A Surface Treatment In Backplane PCB?

Surface treatment is a very important part to fabricate your backplane PCB. It ensures the good solderability of a backplane PCB. It is basically a coating applied to protect the backplane PCB and to provide solderability to the PCB.

Surface Treatments in Backplane PCB

There are different types of surface treatments and different technologies to apply them. The type of surface treatment you need for your backplane PCB basically depends on the requirements of your application. However, you should select the ideal surface treatment for your backplane PCB considering its functions, capability, and demands.

How To Select The Right Manufacturer For A Backplane PCB?

While manufacturing your backplane PCB, you need to find out the right manufacturer for the job too. A poor manufacturer will not be able to make your customized backplane PCB and so it won’t meet your application’s requirements.

You need to consider the quality and accountability of your manufacturer. Check if the manufacturer has access to modern technologies. Find out if they make customized backplane PCBs. Experience in the PCB industry is a must for the right manufacturers.

You make sure the manufacturer works with applications of different industries like medical industries, telecommunications, automotive electronics, etc services. Overall considering all the factors, terms everything, you should select the right manufacturer for your backplane PCB.

Conclusion

PCBMay is a very reputable manufacturer in the PCB industry. We produce all types of PCBs including Backplane PCB with customization facilities. You can get the best quality backplane PCB from us.

At this point, you have learned everything about backplane PCBs if you have gone through the FAQ guide. However, if you please to know more about this printed circuit board, you are most welcome to contact us. We will get back to you.