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The Purposes and Different Kinds of PCB Plate

A circuit board’s successful operation depends on a variety of materials and parts. The majority of electrical gadgets are built on printed circuit boards. To design a circuit board, several materials are being used. One illustration of such a material is the PCB plate.

An essential part of the circuit board is the plate. Electronic gadgets benefit from the electrical and mechanical support provided by PCBs. Oftentimes, a plate is utilized in any keyboard PCB. We will go over all the details you should know regarding PCB plates in our article.

What Does the PCB Plate Offer?

The PCB plate can be described as a unique metal plate that is fastened over the keyboard’s PCB. This plate provides additional support.

Additionally, a keyboard’s keys are not installed directly on the Circuit board itself but rather on a PCB plate. Additionally, the keyboard’s PCB plate stops it from flexing. The keyboard may be made stronger and more stable thanks to this plate.

Larger keyboards typically use PCB plates. This can be attributed to the fact that  it provides additional help. Additionally, the additional size may cause the keyboard to flex more. However, the PCB plate is absent from some keyboards. Nowadays, keyboards come with a plate. Users have the option of designing a keyboard without a plate. The switches’ stability however, will depend on the quality of soldering.

The PCB can be described as the keyboard’s fundamental component. A keyboard operates using the PCB. Also, everything constructed on the keyboard begins with the circuit board.

The circuit board to the keyboard functions as the equivalent of a motherboard in a computer. When positioned on this PCB’s top, this PCB plate adds additional support.

This plate aids in giving the keyboard adequate stability. Additionally, it stops your keyboard from flexing.

Plate Material Types

PCB Plate board

The materials used to design a PCB ranges widely. Aluminum and Brass, however, are two materials used most frequently for the plates. Your choice will determine the kind of material that you are using for the plate. Explore these resources, though, and find what works best for your needs.


The brass plate is incredibly rigid. Brass is indeed a fantastic material that suits the PCB plate. But if neglected, this substance will eventually oxidize or tarnish. Some people claim that brass has a strong, bassy sound.

Carbon Fiber

The plate is quite robust and durable. Additionally, it is flexible and lightweight. Plates made from carbon fiber hence have a springy feel.


The most popular material for PCB plates is Aluminum. In both bespoke and prebuilt keyboards, aluminum plates were frequently employed. Furthermore, one material that is readily available is aluminum. This substance gives durability and is simple to cut. Keyboards made of this stiff material have no flex.


This material is plastic. Flexibility is possible and this polycarbonate plate could be bouncy whenever it is utilized. Users insisted that the plate had a form of bassy sound, though.

PCB Plate Applications


Keyboards are the primary application for PCB plates. When positioned on the top of circuit boards utilized for keyboards, these plates provide additional stability.

They are also applicable to switches that are plate-mounted. You need plates for these switches. Additionally, they have three pins on their bottom. Two forms of metal pins as well as a center circular knob are present.

They lack stabilizing pins though. The plate starts to serve its purpose at this point. As a result, every switch is stabilized by this plate, which also reduces side-to-side swaying whenever a key is pressed.

Plate Mounted Vs PCB Mounted Keyboard: What’s the Difference?

This circuit board is present on both the plate mount as well as PCB mount. This same addition of the metal plate as support for the keyboard makes a significant impact, though.

Keyboards that are PCB mounted

Key switches on a keyboard like this will be placed directly to the Circuit board. The mounting plate is not necessary for a keyboard that is installed on a PCB. The smaller keyboards are the perfect fit for this mounting design. It isn’t the best solution for bigger keyboards, though. This is due to the resulting keyboard’s fragility.

It might not be worthwhile to use a plate mount technique on smaller keyboards. For larger or bigger keyboards, the plate mount seems to be the best option. The PCB mounted type of keyboard is also more affordable to develop since it allows more versatility. Keyboards installed on PCBs are fairly simple to alter. They are also less expensive.

Keyboards that are Plate mounted

Its key switches have all been mounted on the plate in this instance. Frequently, this metal plate gets mounted above the circuit board. Additionally, these key switches are mounted on top of the plate by the designer before being soldered onto the PCB. Designing the plate-mounted keyboard typically requires more time. Additionally, this mounting method takes more time and money.

Larger keyboards are acceptable for the design of the plate mount. It can also be a fantastic choice for the smaller keyboard. But the result would be a superior keyboard. Note that moving this mounting plate will be really challenging. As a result, making alterations or customizations might be exceedingly challenging. Therefore, it is recommended that you desolder any key switches before resoldering.

PCB Types Utilized for Keyboards

keyboard circuit board

Keyboard PCBs can be of a variety of sorts.

Through holes PCB

 5-pin Pcbs is a type of through-hole PCB. Here, using PCB plates is not required. It’s common for keyboards having through-hole Circuit boards to include build manuals. When utilizing this PCB, the designer will also have to solder some components, such as resistors. For more experienced keyboard makers with soldering skills, this PCB seems to be perfect.

Hot-swappable PCB

Hot-swap sockets are already fitted on this PCB. Additionally, this PCB enables switch installation without soldering or desoldering. As a result, it is the best choice for beginners. Additionally, you are not required to buy soldering equipment. Also, it is quite advantageous because it enables switching around different switches.

Soldered PCB

Customized mechanical keyboards frequently employ PCB that has been soldered. The switches must be soldered into the soldered PCB. Additionally, this PCB has 5-pin pockets which accommodates the switches. 5-pin switches are supported by the soldered PCB.


PCB plates in keyboards have a lot of useful functions. It is impossible to undervalue their significance. They are not present on every keyboard, though. This is dependent on the keyboard’s size. PCB plates provide a keyboard with more stability.

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