Phone: +86 (0)755-8524-1496

Cavity Board Manufacturer. Open a Cavity PCBs require a depth-controlled cutout to expose inner layers to air for antenna or component assembly. We offer Cavity PCBs from 4 layer to 50 layers, multi-cavity on one units boards. or the cavity on the top side or maybe on the bottom layers, or maybe in the embedded(buried) type cavity.

PCB cavity plays an important role in making electronic products smaller. Compared to the standard PCB, the cavity PCB has a structural groove for additional functions. The main drivers of the cavity are thermal management and miniaturization of electronic equipment. As smaller products become more popular, more and more of our customers are seeking PCB cavity technology from us.

PCB cavities provide space for electronic components such as capacitors, transistors and logic modules, giving the assembled PCB an overall thinner structure. They can be applied to multilayer PCBs and they offer different layouts with several cavities of different depths if used on a single circuit board. 

PCB manufacturers provide multiple ways to create a PCB cavity. Most cavity boards are manufactured with a controlled depth routing process equipped with a special routing machine. If required, the cavity can be electroplated. Another way to produce cavities is through the sequential lamination with low-flow or no-flow prepress. The third method is through the laser depth control.ALCANTA PCB has partnered with strong suppliers who have done great research work of PCB cavities. With the growing trend of small products, we strive to develop more new types of technology to manufacture smaller products and have attracted more customers to use our PCB cavities. Please contact us today to find out what we can help you with.

What is Cavity Board?

Cavity Board, as a specially designed printed circuit board (PCB), plays an important role in the field of modern electronics. Compared with traditional flat PCBs, Cavity Board has a unique structure and function. It contains cavities or cavities inside that can be used to accommodate other components or components. The introduction of this design concept has greatly changed the way electronic equipment is designed and manufactured, providing electronic engineers with more innovation space and design possibilities.

First of all, one of the main features of Cavity Board is the design of its internal cavity. These cavities can be customized to specific needs and used to house various electronic components such as chips, sensors, capacitors, etc. By placing these components in the internal space, a compact layout of the circuit can be achieved, saving equipment space to the maximum extent, making the electronic equipment lighter and more portable, while improving the overall integration and performance.

Secondly, the design of Cavity Board can also improve the performance and reliability of electronic equipment. By installing a radiator or thermally conductive material in the cavity, the temperature of the electronic device can be effectively adjusted and the heat dissipation efficiency is improved, thereby reducing the risk of overheating of the device and extending the service life of the device. In addition, Cavity Board can also reduce interference between electronic components, improve the stability and anti-interference ability of the equipment, and ensure the normal operation of the equipment in complex working environments.

In addition, Cavity Board’s manufacturing process is also constantly innovating and improving. The development of modern technology has made the manufacturing process more precise and efficient, allowing for more complex and sophisticated cavity designs to meet the needs of different industries and application fields. At the same time, with the continuous advancement of material science and process technology, the manufacturing cost of Cavity Board is gradually reduced, making it more competitive in the market.

To sum up, Cavity Board, as an innovative printed circuit board, plays an increasingly important role in the design and manufacturing of electronic equipment. Its unique design concept and functional advantages have brought new development opportunities and challenges to the electronics industry, indicating that future electronic equipment will be more intelligent, efficient and reliable.

Cavity Board design Reference Guide.

Cavity Board (cavity board) is a special design of printed circuit board (PCB). Its design process and principles are slightly different from traditional flat PCB. The following is a reference guide on Cavity Board design, designed to help engineers and designers better understand and apply this technology.

Identify needs and goals

Before you start designing, you first need to clarify the needs and goals of the project. This includes determining the size, internal structure, functional requirements and application environment of the cavity plate. For different application scenarios, there may be different factors to consider, so it is important to ensure that there is sufficient communication with the customer or team to clarify the requirements.

Internal structural design

The internal structural design of the cavity plate is a critical step. Designers need to consider how to arrange the internal cavity to accommodate other components or elements and ensure good thermal dissipation and electromagnetic compatibility. In addition, attention needs to be paid to the design of internal connections and wiring to ensure the stability and reliability of signal transmission.

Material selection

Choosing the right materials is critical to the performance and reliability of the cavity plate. Commonly used materials include FR-4 fiberglass composites and metal substrates, with the specific choice depending on the project’s requirements and budget. In addition, the thermal conductivity and high temperature resistance of the material must be considered to ensure that the cavity plate performs well under various operating conditions.

CAD design and simulation

Using CAD software for cavity plate design and layout is an essential step. Through CAD software, designers can accurately draw the shape and internal structure of the cavity plate, and conduct simulation analysis to verify the feasibility of the design. This helps identify and resolve potential issues before manufacturing, improving the quality and reliability of the design.

Manufacturing and assembly

Once the design is complete, the manufacturing and assembly phases can begin. The manufacturing process includes steps such as printing, cavity machining, chemical etching, etc., while assembly involves connecting and securing the cavity plate to other components or elements. Quality control and testing are very important at this stage to ensure that the final product performs and reliably meets expectations.

Continuous improvement and optimization

Design work is not static. With the development of technology and market, the design of cavity plate also needs to be continuously improved and optimized. Therefore, the design team should keep an eye on the latest technologies and trends, and constantly learn and try new design methods and tools to improve the efficiency and quality of design.

By following the above guidelines, designers can better apply Cavity Board technology to achieve better designs and more reliable products. I hope this reference guide can help and inspire your design work!

What material is used in Cavity Board?

The material selection of Cavity Board is crucial, as it directly affects the performance, heat dissipation effect and reliability of the cavity board. The following are commonly used materials for Cavity Board:

Substrate material

The substrate is the main body of Cavity Board. Commonly used substrate materials include FR-4 fiberglass composite materials and metal substrates. FR-4 substrates are usually used for applications with general performance requirements, while metal substrates have better thermal conductivity and are suitable for applications that require higher heat dissipation effects.

Conductor material

In the design of Cavity Board, conductor materials are usually realized through metallization process. Common conductor materials include copper, silver, gold, etc. These conductor materials have good electrical conductivity and mechanical strength, ensuring the stability and reliability of the circuit.


The cavity in the Cavity Board usually needs to be filled with some special materials to enhance structural strength, improve heat dissipation, or isolate electromagnetic interference. Commonly used filling materials include thermally conductive glue, silicone, epoxy resin, etc., which have excellent thermal conductivity and insulation properties.

Surface coating

In order to protect the surface of Cavity Board from environmental corrosion and mechanical damage, surface coating treatment is often required. Commonly used surface coating materials include gold plating, tin plating, plastic spraying, etc., which can improve the corrosion resistance and wear resistance of the board.

Other auxiliary materials

During the manufacturing process of Cavity Board, some other auxiliary materials may also be needed, such as welding materials, sealing materials, etc. These auxiliary materials can also improve the performance and reliability of the circuit while ensuring the manufacturing process.

What size are Cavity Board?

The size of the cavity plate is usually determined by the components and components that need to be accommodated. Some applications require smaller sized cavity plates to fit into tight spaces, such as portable electronics or medical implants. In these cases, the cavity plate may need to be designed to be very compact to ensure that all necessary components are accommodated within the limited space. Small-sized cavity boards often require higher technical requirements and manufacturing precision to ensure that the distance and layout between individual components meet design specifications while ensuring performance and reliability.

On the other hand, some applications require larger size cavity plates. In this case, the cavity plate may be designed to be wider to accommodate large components or provide more space for heat dissipation. For example, in industrial automation equipment or high-performance computers, the cavity plate may need to accommodate more circuits, sensors, or processors and provide enough space to ensure good heat dissipation. Larger cavity plates often require more complex design and manufacturing processes to meet the device’s performance requirements and reliability standards.

Therefore, cavity plates are available in a wide range of sizes and can be customized to suit the requirements of a specific application. Whether it is a small portable device or a large industrial device, the cavity board plays a key role in providing support and guarantee for the function and performance of the electronic device. When designing and manufacturing cavity panels, space constraints, performance requirements, and manufacturing costs need to be considered to ensure that the final product meets customer expectations and achieves the desired results.

The Manufacturer Process of Cavity Board.

The manufacturing process of Cavity Board is a comprehensive project designed to ensure that the final product meets customer needs and provides superior performance. Compared with traditional flat PCBs, manufacturing cavity boards requires additional consideration of the design and processing of the internal cavity, so more attention and precision operations are required throughout the process.

First, the process of manufacturing cavity panels begins with the design phase. At this stage, engineers use CAD software to design, considering the size, location, and shape of the cavity, as well as the layout of other electronic components. This step is critical because the quality of the design directly affects the performance and reliability of the final product.

Next comes the prototyping phase. At this stage, the design team typically produces one or more samples to verify the feasibility and accuracy of the design. By actually making and testing samples, they can identify potential problems and make necessary corrections to ensure the quality of the final product.

Once the sample is confirmed to be correct, the printing stage begins. At this stage, the designed circuit diagram is transferred to the substrate, usually through chemical etching or layer-by-layer stacking. This step requires a high degree of precision and expertise to ensure that the circuits are connected correctly.

This is followed by the cavity machining stage. At this stage, internal cavities are machined to accommodate other components or elements. This may involve drilling, milling, cutting and other processing processes, which require the use of precision equipment and tools to ensure processing quality.

Finally comes the assembly stage. At this stage, the already fabricated cavity plates are assembled into the final product. This may include steps such as soldering electronic components, installing enclosures, performing tests, etc. Quality control during the assembly stage is crucial as any defects may affect the performance and reliability of the final product.

Overall, manufacturing cavity boards is a complex and comprehensive process involving multiple steps such as design, prototyping, printing, cavity processing, and assembly. Only through precise operations and strict quality control can we produce high-quality cavity plate products that meet customer needs.

The Application area of Cavity Board.

The world today is in an era of rapid technological development, and Cavity Board, as an innovative technological application, has shown great potential and wide applications in various fields. Especially in some applications with high space and performance requirements, cavity plate technology is playing an increasingly important role.

First of all, the drone industry is one of the important application fields of cavity plate technology. With the rapid development of drone technology, the design requirements for drones are getting higher and higher, and more functional modules need to be integrated in a limited space while ensuring flight performance and stability. The design of the cavity plate can effectively optimize the internal structure and improve the layout efficiency between components, allowing the drone to achieve a better balance in volume and performance.

Secondly, the field of medical equipment is also one of the important application fields of cavity plate technology. Modern medical equipment has increasing requirements for small size, light weight, and powerful functions, and cavity plate technology just meets this demand. For example, portable medical diagnostic equipment, implantable medical devices, etc. can achieve more precise and efficient designs through cavity plate technology, bringing more advanced technical support to the medical industry.

In addition, communication systems are another important application area of ​​cavity boards. In high-speed communication systems, electronic equipment is required to have a high signal transmission rate and stability, and at the same time, the compression of the equipment volume and the optimization of the heat dissipation effect must be considered. Cavity plate technology can effectively solve these problems by designing internal cavities and optimizing thermal conductivity structures, providing strong support for improving the performance of communication equipment.

In short, cavity plate technology has shown broad application prospects in many fields such as drones, medical equipment, and communication systems. With the continuous innovation and advancement of technology, it is believed that cavity plate technology will play an important role in more fields and bring more innovation and development opportunities to all walks of life.

What are the advantages of Cavity Board?

When it comes to the advantages of Cavity Board, it exhibits impressive features compared to traditional flat PCBs. Here are some key benefits:

Use space more efficiently

Cavity Board designs internal cavities or cavities to make the assembly of electronic devices more compact. This means that more components can be accommodated in a limited space, allowing for more complex functions. Whether it’s a portable smartphone or a high-performance computer, cavity boards enable powerful functionality in a small size.

Improve cooling performance

The cavity design allows heat to be dispersed and dissipated more effectively, thereby improving the heat dissipation performance of electronic equipment. This is especially important for equipment that requires long operation times or high performance. Through effective heat dissipation, equipment can be maintained at the appropriate operating temperature, extending its service life and improving performance stability.

Enhance device stability and durability

The structure of the cavity plate is more rigid and better protects the internal components from the external environment. This design reduces the risk of mechanical damage and loose components, making the device more durable and stable. Whether in harsh industrial environments or extreme outdoor conditions, cavity panels are designed to remain in good working order.

Reduce electromagnetic interference and noise

The cavity design can effectively isolate electronic signals from different parts and reduce the impact of electromagnetic interference and noise. This helps improve the signal transmission quality of the device and reduces the risk of data transmission errors. This advantage is particularly important in application scenarios that require high reliability and accuracy, such as medical equipment and communication systems.

To sum up, Cavity Board, as a new type of PCB design, has shown many advantages in electronic equipment. Its compact space utilization, excellent heat dissipation performance, stable and durable structure and high-quality signal transmission quality provide more reliable and efficient solutions for the design and manufacturing of modern electronic products.


How is Cavity Board different from traditional PCB?

Compared with traditional flat PCBs, Cavity Board’s design pays more attention to the utilization of internal space and the layout of components. It adopts an internal cavity structure that can accommodate more components and provide better heat dissipation performance and signal transmission quality.

What is the manufacturing process of Cavity Board?

The process of manufacturing Cavity Board is similar to that of traditional PCB, but additional consideration is required in the design and processing of the internal cavity. The process includes multiple steps such as design, prototyping, printing, cavity processing, assembly, etc. to ensure that the final product meets customer needs.

What are the application fields of Cavity Board?

Cavity Board is widely used in various electronic devices, especially in areas with high space and performance requirements. For example, drones, medical equipment, communication systems, etc. may all use Cavity Board technology to achieve better design and functionality.

What are the advantages of Cavity Board?

Cavity Board has many advantages over traditional flat PCB. First, it can use space more efficiently, making electronic devices more compact. Secondly, the cavity design can improve heat dissipation performance and enhance the stability and durability of the device. In addition, Cavity Board can also reduce electromagnetic interference and noise and improve the quality of signal transmission.



Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.