PCB Blog - What are the advantages of the fr4 plate keyboard?

The touch keyboard on FR4 plate is a high-quality product mainly used for the integration of input device modules. The gilded contact surface ensures good contact performance, and sealing it onto the chassis is completely trustworthy. This type of keyboard has a protection level of IP65 or even higher. You can choose to use ribbon wires or manufacture direct contact (pin to socket) to connect the keyboard to the customer's electronic system. When making the surface diaphragm of the FR4 touch keyboard, any printing technology, such as a screen or Digital printing, can be configured on it, ensuring a high grade of free design.

What is the difference between a brass keyboard board and a FR4 keyboard board?

Plates made of high-density materials such as brass or stainless steel can emit higher tones, while plates made of less dense materials such as FR4 have lower tones.

FR-4 has high mechanical and dielectric properties, good heat and moisture resistance, and good machinability.

Characteristics of FR4 board

1. Excellent performance stability

FR4 board has extremely high stability and working life and can work stably for a long time in high-temperature and high-pressure environments. Not only that, it can also resist electromagnetic interference and radiation interference, and effectively prevent a decrease in insulation performance.

2. Super strong mechanical strength

FR4 boards can resist mechanical stresses such as impact, vibration, and pressure, and have excellent acid, alkali, and corrosion resistance. This enables FR4 boards to not only work stably at ordinary temperatures for a long time but also adapt to various harsh environmental applications.

3. High-precision machining performance

FR4 boards have certain processing properties and can meet the requirements of different customers. Moreover, it can also perform various machining processes such as drilling, boring, line cutting, and chip mounting, achieving high-precision and low-error process requirements.

The purpose of the FR4 board

FR4 boards have a wide range of applications, mainly in fields such as electronics, electrical, communication, aerospace, etc.

1. Circuit board

In electronic manufacturing, FR4 boards are usually used for the manufacturing of circuit boards. It can be used as a substrate material for circuit boards, ensuring their stability and reliability.

2. Partition and isolation materials

FR4 plate has excellent insulation performance and high-temperature stability, so it can be used as a partition and isolation material in power systems. This not only ensures the electrical safety of the equipment but also avoids accidents caused by electrical faults.

3. Machine element

FR4 boards can also be used as the material of Machine elements, such as machine tool clapboard, automobile hood, etc. It has excellent mechanical properties and chemical stability and can be applied to different mechanical systems.

In summary, FR4 board metal, as an important electrical material, has excellent electrical properties, mechanical strength, and chemical stability, and is widely used in fields such as aerospace, communication, electronics, and electrical engineering. For electronic manufacturing enterprises, choosing high-quality FR4 boards can help them improve product quality and market competitiveness.

Differences in keyboards made of different materials

Some, such as brass, FR4, PC, etc., have slight sound differences due to material reasons, such as brass having a brighter sound and PC having a quieter sound.

1. PC positioning board: Paired with a 4f linear axis for a comfortable feel, the material is soft, and the rebound is very comfortable. Paired with a strong paragraph axis, it will slightly absorb and alleviate the feeling of touching the bottom paragraph. It should be noted that the installation needs to be slightly careful, otherwise, it is easy to scratch the surface.

2. PC semi-steel positioning plate: Due to the lack of steel in the letter area, it has a softer feel compared to a PC, and installation is slightly more complicated than a PC.

3. Carbon fiber positioning board: The overall feel is still soft, but harder than that of a PC, with strong rebound but no shock, and the customized price is relatively cheap.

4. FR4 positioning plate: It has a harder feel than PC and carbon fiber, with a stronger rebound force and a brighter sound.

5. Aluminum alloy positioning plate: The feel is relatively balanced, similar to that of carbon fiber.

6. Brass positioning plate: It has a relatively hard feel.

FR4 material is a fiberglass material, and the FR-4 plate can provide more flexible pressure, which has a certain effect of reducing resonance.