- 20 layer PCB designed by our well-experienced engineers
- highly reliable and top-quality 20 layer PCB
- more than 10 years of providing 20 layer PCB
- offers flexible payment methods
Is the 20 Layer PCB Cost Effective?
20 layer PCBs are cost-effective for proven reason. This is because of its small board size with high density.
Since you can arrange its components on a small circuit board, it helps to save some materials. Also, 20 Layer PCB can be made by stacking up to 20 layers, so the PCB is durable and strong. Plus, this durability can help to save some money that would otherwise be spent on frequent repairs that might otherwise occur due to breakage and other damage.
How Thick is a 20 Layer PCB?
A 20 layer PCB design consists of one or more prepregs and a core. The magnetic core is made of copper-coated glass and protected by an epoxy laminate. The core thickness ranges from 0.1mm to 0.3mm.
If you have any requirments about 20 Layer PCB, do not hesitate to contact our Venture Team, we will give you full support.
Why is 20 Layer PCB Considered as High-density PCB?
This consideration can be based on the following factors:
●High routing thickness compared to other PCBs
●The vias are smaller and the connection density is high.
●The connection between layers is done only through vias.
●Incorporates laser microvias because they are small and useful when spacing issues arise.
Hope these information can be useful for you to choose the best 16 layer PCB for your applications.
Any questions or inquiries, do not hesitate to contact Venture Electronics.
Venture Electronics is a professional supplier of extremely reliable 20 layer PCB in China for over 10 years. As a professional manufacturer, Venture can always meet your 20 layer PCB needs. We are always ready to provide you the best quality 20 layer PCB along with the best services. We also have the full capacity to manufacture other PCB such as:
- 16 layer PCB
- 14 layer PCB
- 12 layer PCB
- 10 layer PCB
- 8 layer PCB
- 6 layer PCB
- 4 layer PCB
- 2 layer PCB, and more
Your Leading 20 layer PCB Design Supplier in China
For more than 10 years, Venture Electronics is the world-leading manufacturer of 20 layer PCB. We are always up-to-date when it comes to high-technology and advanced equipment. Therefore, you can assure that we can give you the best quality 20 layer PCB.
Venture 20 layer PCBs are made from outstanding quality materials. It can give you the durability and high-performance you need. Here are some benefits of Venture 20 layer PCB:
- miniature in size
- lightweight and high-quality
- more density and more functionality
- ease of installation
Our 20 layer PCB is equipped with a more optimal solution and advanced features. Venture 20 layer PCB will surely suit your applications and needs.
With our advanced production lines and facilities, we can manufacture hundreds of 20 layer PCB. So, you still have enough 20 layer PCB to suffice your needs even in a peak season. That is why Venture Electronics became the leading supplier and manufacturer of 20 layer PCB.
Venture Electronics is committed to doing 20 layer PCB design innovations. We have professional and expert designers. We also have well-trained and knowledgeable engineers to produce your 20 layer PCB. We also offer fair prices and excellent delivery conditions.
Whether you are a distributor, maker, or electrical engineer looking for a reliable quality 20 layer PCB, Venture Electronics is your most trusted manufacturer! With our high-tech fabrication facility and design Softwares, we can surely accommodate your needs!
If you have questions regarding our 20 layers PCB, don’t hesitate to contact us!
20 Layer PCB: The Ultimate FAQ Guide
Choosing a 20 layer PCB requires a proper understanding of all the vital aspects such as design, fabrication process, quality compliance, and proper identification amongst others.
In this guide, you’ll find all information you’re looking for that will help you choose the best multilayer PCB.
Keep reading if you want to learn more.
- What is the 20 Layer PCB?
- How can you Determine the Number of Layers in a PCB?
- What are the Common Challenges in 20-layer PCB Manufacturing?
- What are the 20-layer PCB Design Specifications?
- What are the Applications for 20-layer PCB?
- What are the Board Design Advantages of a 20-layer PCB?
- What are the Technical Specifications of a 20-layer PCB?
- What are 20-layer PCB Design Quote Requirements?
- How can a 20-layer PCB be Made from a Single CAD File?
- What is the PCB Prototype?
- What is a 20-layer PCB Stack-up?
- What are the Steps Involved in Manufacturing a 20-Layer PCB?
- What is the Inner Layer in PCB?
- What is the Outer Layer in PCB?
- What are the Materials used in Manufacturing the PCB Layers?
- What is the Standard FR4 PCB Material?
- What are the Benefits of using FR4 Material in Making 20-layer PCB?
- How is FR4 Organized in a Regular FR4 PCB?
- How do you Select the FR4 Materials for your FR4 PCB?
- What are the Quality Standards for 20-layer PCB?
- How can you Identify a 20-layer PCB?
- How is a 20-layer PCB Cost-effective?
- What are the Causes of Bow and Twist in a 20-layer PCB?
- Which Software can you use to Design a 20-layer PCB?
- How can you Fabricate 20-layer PCB?
- Which Industries use 20-layer PCBs?
- What is the Cost of Purchasing 20-layer PCB?
- How Best can you Inspect 20-layer PCB?
What is the 20 Layer PCB?
This is a multilayer PCB with 20 layers of copper that has been alternated with epoxy resin substrate.
Copper, solder mask, silkscreen, and substrates are the main materials that are used to manufacture this type of PCB.
20 layer PCB
How can you Determine the Number of Layers in a PCB?
There are several ways of how you can determine the number of layers in a PCB.
These include the following:
The intended use for the PCB: Deciding on the number of layers greatly depends on the device the PCB is meant for.
This is because the machines place demands on the PCB that may not be met by some of them.
For instance, a PCB used in complex and high-technology devices must be multilayer PCBs like the 20-layer one.
The required operation frequency: The operation frequency of a PCB is a determinant for its capacity and functionality.
The 20-layer PCB operates at a high-speed and has a relatively high operating capacity.
The project budget: Your budget will influence the number of layers of the PCB you intend to produce.
The less the budget, the fewer the number of PCB and vice versa. Many layers call for a higher cost in comparison to fewer ones because a lot of materials are involved.
The urgency of getting a PCB ready: If you need a PCB within a very limited time, you may not a ford to produce a 20-layer one.
Therefore, the quicker the need for a PCB, the more you are likely not to manufacture this type of PCB.
You may be able to produce either single or double-layer PCBs that have a lead time of 4-8 days.
The required density and signal layers: These also determine the number of PCB layers.
For instance, a pin density of 1.0 needs two signal layers.
On the other hand, a pin density of 0.2 calls for 20 signal layers.
What are the Common Challenges in 20-layer PCB Manufacturing?
Just like any other PCB production, 20-layer PCB also encounters some challenges during its manufacturing process.
The following are some of these problems:
Bow and twist: During the manufacturing of this PCB, there may be the formation of a cylindrical like curvature on the board.
This problem renders the PCB parallel to its diagonal denying it a flat surface.
You can avoid the problem by determining the level of stress that is needed during the time of PCB pressing.
Alternatively, you can avoid this by not combining materials from different suppliers.
Lastly, it’s important to use materials that conform to RoHS guidelines because this helps in keeping bow and twist away.
Problems with pressing the PCB: The manufacturing process of the 20-layer PCB involves pressing the layers using a machine.
This process requires that you use the best pressing machine and good materials for lamination to achieve a good stack-up.
PCB Contamination: During the manufacturing of 20-layer PCB, pollution of the materials can take place.
These contaminants include moisture, fingerprints, dust, oil, and oxidation on the layers.
They can cause interruptions and circuit damage.
To avoid this problem, you should make sure the laboratory is always clean because fixing contamination issues is very costly.
Problems of heat dissipation: The heat is transferred from one hot object to cold ones in the same environment through convection, conduction, and radiation.
This can be fixed by using heat dissipation materials like aluminum foil.
Testing failure: The PCB when tested may not yield the best result. This could be because you did not use the best testing methods.
To overcome this challenge, ensure you use good quality testing methods and equipment.
For instance, conduct bear-board, in-circuit, functional, or assembly level tests.
What are the 20-layer PCB Design Specifications?
There are many design specifications for this PCB.
These include the following:
- It is designed to have 20 layers.
- You have to design it in a way that it should work in high-speed and must have high density.
- It has both it is blinded and buried vias supported.
- The PCB has a minimum of BGA pin-pith of 0.5mm
- This type of PCB has a high-speed signal differential of 10 GHz.
- Its minimum routing width and separation is 4mil.
- The 20-layer PCB has a minimum via a hole size of 8mil.
What are the Applications for 20-layer PCB?
There are six main applications for this PCB. Below is a discussion of these applications.
The consumer electronics: The electronics that are commonly used at home or in offices are made using these PCBs.
For example, smartphones and watches, calculators, TV remote control, mp3 music players use these PCBs.
The PCB is also used in making toys, kitchen appliances, washing machine, electric kettle, and LED bulbs.
Computers and devices: The 20-layer PCB is used in making computers and its parts like motherboard, graphic cards, EEPROMs, and power supplies.
Keyboard, computer mouse, ADCs, GPUs, and image processing circuits also use this type of PCB.
The telecommunication electronics: In this industry, GPS, satellite, computer servers, GPRS, communication towers, and radar electronics are made with 20-layer PCBs.
Sonar antenna, power amplifier, filter, PLLs, mixers, Attenuators, LNA, and telecommand processing circuits are also applications that use 20-layer PCBs.
Automation in the industry: Operations in industries are prone to shock, pressure, temperature, dust, and humidity, and therefore, a 20-layer PCB is reliable.
Industrial applications like robots, automated assembly lines, car manufacturing, spray painting robots, and packaging conveyor belts use these PCBs.
The medical devices: Both monitoring and testing medical machines are made with 20-layer PCBs.
For instance, blood pressure measuring equipment, electronic sugar testing machine, infrared temperature monitoring device use 20-layer PCB.
These PCB types are also common in machines like nuclear, radiology, MRI, CT scan, X-Ray machines.
The Military, Aerospace, and Defense: These types of PCBs are used in making military machines like unarmed aerial vehicles, unarmed ground vehicles, radar, Surveillance.
Automated guns, rail guns, systems for navigation, artificial intelligence that is used in military cyber are also made with them.
These applications can function efficiently under high pressure and temperature.
What are the Board Design Advantages of a 20-layer PCB?
There are many benefits offered by designing a 20-layer PCB.
Multilayer PCB design
It is smaller compared to a single or double-layer PCB.
This small size is achieved by sticking up the 20 layers upon each other and connecting them through vias.
The outcome is a compact, dense, and small PCB that is used in making mobile phones, and laptops among others.
This design also produces PCBs that are lighter due to its small size.
For this reason, they are easily handled and carried around.
The 20-layer PCB is also designed in such a way that it is of high-quality.
They are made in an organized way.
It takes a relatively long time to fabricate these PCBs in comparison to the single and double layer PCBs.
The fact that a 20-layer PCB is made by stacking up 20 layers, it is strong and therefore durable.
They go through high temperature during processing.
Also, the laminates used for binding the layers contribute to its durability.
In addition to these, these PCBs have more density in comparison to either single-layer or double-layer ones.
They allow more components to be soldered on a small surface and this helps in improving the PCB efficiency.
Apart from these, the 20-layer PCB function efficiently because it has incorporated more circuitry in a small space.
For this reason, the devices using this type of PCBs function at high-speed and are more powerful.
They are therefore ideal for artificial intelligence, quantum computing, crypto-currency mining equipment, graphic cards, and supercomputers.
Lastly, these boards are designed in such a way that you can easily install them.
For example, LED TV has a power supply, LED driver circuit, and motherboard all put together in the same PCB.
All these have one connection point and this makes it easy to repair and troubleshoot.
What are the Technical Specifications of a 20-layer PCB?
There are many technical specifications for this PCB.
For instance, it has 20 layers that are composed of epoxy fiberglass that has been bonded with 20 copper layers.
This copper has different thicknesses.
The 20-layer PCB has been made from FR4, halogen-free FR4, low cost, and low Dk materials.
The copper that is being used as a weight of 18µm to 210 µm, and advanced 1050µm/30oz.
This PCB has a minimum trace and gap of 0.075mm and a thickness of 0.40mm.
The minimum dimensions of a 20-layer PCB are 580mm x1080mm.
If it’s advanced, it can be 610mm x 1400mm.
The HASL, LF HASL, ENIG, and Immersion Tin are some of the surface finishes that are used on this PCB.
Immersion Silver, OSP, Electrolytic gold and gold finger
Lastly, it has a mechanical drill of 0.20mm.
20 Layer PCB
What are 20-layer PCB Design Quote Requirements?
The design quote requirements for a 20-layer PCB are many.
They include the following:
The PCB design layout: This is the physical form of the electric circuit that you have designed.
You can use the design layout and software to place components and routing on a circuit board.
This helps in defining the electrical connectivity of the PCB.
The BOM: This is a list of all the materials needed for the manufacturing of a 20-layer PCB.
It includes sub-assemblies, intermediate assemblies, sub-components, components, and their quantities.
The PCB schematic diagram: This is a diagram of an electric circuit that represents interconnections that are available between the PCB components.
The PCB copy: This is the reverse engineering that you can generate by scanning the board and thereafter record all component location details.
Others include the lead time, size of the board and boat shape, netlist, and special routing instructions.
How can a 20-layer PCB be Made from a Single CAD File?
You can do this by transferring a PCB design CAD tool from a single intelligent file to production for fabrication.
After this, you can go ahead and do the assembly and lastly test it.
The single CAD file uses an XML schema format that helps in speeding up the PCB fabrication, assembly, and testing.
The data for PCB design is therefore transferred between the engineer and the PCB manufacturer.
This data does not need to be interpreted and therefore, human labor and errors are minimized.
The use of this CAD file, therefore, result in the manufacture of high-quality PCBs.
What is the PCB Prototype?
PCB prototyping is the core of every product that contains the electrical components that influence the machine behavior.
It’s used to turn on, plugs in and lights up a device and it’s available in different shapes and sizes.
What is a 20-layer PCB Stack-up?
These are the 20 layers of copper and insulating layers that form the PCB before the board layout.
These stack-ups are responsible for reducing the circuit vulnerability to noise from outside.
Radiation, impedance, and crosstalk issues that occur in high-speed PCB layouts can also be minimized by the stack-up.
What are the Steps Involved in Manufacturing a 20-Layer PCB?
Seven main steps are involved in manufacturing a 20-layer PCB.
These steps include the following:
- Manufacturing 20-layer PCB goes through the process of analyzing the requirements and carrying out the selection of the PCB component.
- Secondly, you have to carry out an in-system front end design.
- Thirdly, you should initiate the photo tool by transferring the image from the software to the board.
- The fourth step you should deal with is to print the inner layers of that 20-layer PCB.
- The next step is to remove the unwanted copper from the board through a process called etching.
- The sixth step is to align the inner layers by doing the registration of punching.
- Lastly, carry out an automatic optical inspection of the complete PCB.
What is the Inner Layer in PCB?
20 layer PCB
This is the layer that is located in the middle of the PCB stack-up.
It’s composed of many copper layers found in between the top and bottom copper layers.
This inner layer is manufactured according to how it has been named, for instance, 20-layer PCB.
What is the Outer Layer in PCB?
This is the external layer of a PCB where the electrical components are attached.
These components are soldered via through-hole or surface mount pads technique.
What are the Materials used in Manufacturing the PCB Layers?
The materials that are normally used in manufacturing PCBs are fiberglass epoxy resin which is a reinforcement and copper foil.
These two are bonded and pressed together using a pressing machine.
Paper reinforcement phenolic resin can also be used as a substrate to bind copper foil.
This is relatively cost-effective and is ideal for making household equipment.
Other materials that can be used are Kapton, polyimide films, and rigid substrates like FR4.
Nickel, silver epoxy, polyimide, modified acrylic, pressure-sensitive adhesives, and aluminum are also PCB materials.
What is the Standard FR4 PCB Material?
This is an FR4 glass epoxy panel that has been laminated with a thin layer of copper.
This lamination can be done on either one or both sides of the PCB.
The material is sometimes called copper-clad laminate.
What are the Benefits of using FR4 Material in Making 20-layer PCB?
There are many advantages you can get when you use FR4 material in making a 20-layer PCB.
These merits are outlined below.
FR 4 Material Structure
- It is resistant to water and temperature, and therefore can be used in both dry and humid environments.
- FR4 is a good electrical insulator because it makes the PCB strong due to its provision of mechanical strength.
- Because it is strong, it is durable in comparison to other PCBs made using other materials.
- The FR4 material is cheap, has high dielectric strength that supports its electric insulation.
- Its color varies from yellow to light green and this makes it the best PCB material for most applications.
How is FR4 Organized in a Regular FR4 PCB?
The FR4 is placed on the PCB base.
You can laminate it with copper foil layers on one or both sides.
How do you Select the FR4 Materials for your FR4 PCB?
If you want to choose the best FR4 material, you should go for thin FR4 materials.
This is because these are relevant for building PCBs with small space.
These materials are ideal for supporting delicate components that are used in making Bluetooth accessories, and USB connectors among others.
They are also useful in a situation where you would like to design space-saving devices.
This thin FR4 material is also good for manufacturing machines that require regular flexing.
For instance, automotive and medical devices.
The use of thin FR4 materials results in light PCBs and light electronics that look attractive and easy to transport.
What are the Quality Standards for 20-layer PCB?
The acceptable quality standard for this PCB is the following:
- It should have 20 copper layers alternated with substrates.
- The PCB should function at a high-speed and should have a high capacity.
- These types of PCBs should be ideal for the manufacturing of small, portable, and powerful devices.
- It should have an excellent thermal resistance.
How can you Identify a 20-layer PCB?
A 20-layer PCB can be identified through the following ways:
- You look at the efficiency at which the devices made from this PCB works. It will be functioning faster.
- To know if a PCB is 20-layer, you have to enumerate the layers and confirm if they are exactly 20.
You also have to look at the configuration and the board building value.
- Check the routing board density since this can also give you a clue on whether it’s a 20-layer PCB.
- Consider the other parameters like operation capacity, and speed because these are all indicators of a 20-layer PCB.
- You can distinguish this by looking at the lead time for its production. It is expected that a 20-layer PCB should have a lead time of between 12 to 20 working days.
How is a 20-layer PCB Cost-effective?
This PCB is cost-effective because it uses a small board size since its small.
It saves on the cost because it has a high density.
Its components are compacted in a small board and this saves on the materials that are being used.
Because it is made by stacking 20 layers, it is strong and therefore durable.
This helps in saving you from frequent repairs that may arise from breakages and other damages.
What are the Causes of Bow and Twist in a 20-layer PCB?
Bow and twit are mainly caused by either a fault in the manufacturing or assembly process.
They are caused by the war-page when you use different PCB materials.
It also happens when you change the stack-up of the board or use different manufacturing processes on the same PCB.
The changes in the production process may include heat variation, and failure to control the temperature when laminating the PCB.
Solder-mask thermal curing, the process of HAL, and flatness baking after completing the PCB production, also cause bow and twist.
Secondly, during assembly, the board is heated and this heat causes stress that may result in bow and twist.
In addition to these, soldering of the components on the board calls for enough support.
If not, it ends up in developing bow and twist.
Lastly, a 20-layer PCB design that has unbalanced copper on the layer to layer results in bow and twist.
Unbalanced dielectric thickness throughout the design is also a cause.
Which Software can you use to Design a 20-layer PCB?
There is much software that can be used to design this PCB.
They include the following:
- Altium Designer
- KiCad EDA
- SolidWorks PCB
- PCB Web Designer
- Zenit PCB
- Osmond PCB
- Express PCB
- DesignSpark PCB.
- Advanced circuit schematic
- Best CAD PCB design
- Linux PCB design
How can you Fabricate 20-layer PCB?
A 20-layer PCB is fabricated through various processes.
These processes involve assembling and stacking of 20 layers together through interspersing insulating material between each copper layer. Below are the processes that are used to fabricate this PCB.
Imaging process: During this process, the digital design is actualized on the physical board. It is transferred from the software to the board.
Etching process: The extra metal is removed from the PCB using an industrial solvent.
20-layer lamination: The PCB 20 layers are combined using a pressing machine to come up with a single board.
Machining of the 20-layer: during machining of this PCB, the through-hole and via are drilled. This drilling facilitates the connections between the 20 layers of this PCB.
Plating of the PCB: At this stage of the 20-layer fabrication process, metal finish is applied to the through-hole and via.
Which Industries use 20-layer PCBs?
Many industries use this type of PCBs. These industries include the following:
The telecommunication industry uses these PCBs to manufacture office and personal communication devices like telephone and cell phones.
An automotive industry that uses them to manufacture economic, mid-price, and luxury light-duty vehicles.
The electronic industry also uses these PCBs to make devices like TV remotes, microwaves, and electric iron among others.
The military industry is not left out.
They use it to produce electronic countermeasures, jet instrumentation, jamming system, and radio communication system among others.
What is the Cost of Purchasing 20-layer PCB?
The purchasing cost for these PCBs varies. Some may cost between 20 USD to 200 USD per piece.
The more your order, the less it costs.
For instance, purchasing less than 100 pieces is costlier than 1000 pieces.
How Best can you Inspect 20-layer PCB?
Many things are tested in this PCB. First, you have to check if the board dimensions and thickness are the exact ones on the drawing.
Secondly, using a microscope, inspect the hole-diameter and their position to see if its’ relative to the PCB edge.
You can also test bow and twist on the boards that seem not to be flat.
Test also the cosmetic appearance to know if solder mask, legend ink, copper, and surface finish is adhesive.
This is done by using a pressure-sensitive tape on the board.
Pull it out sharply to see if bits of legend ink or solder mask is attached to the tape.
Conduct visual inspection of the drilled holes to see if they are clean, clear, and free from obstruction by contaminants.
Lastly, carry out thermal shock and solder-ability test.
Once you pay attention to all these, you will definitely get high quality multilayer printed circuit board.
For questions or inquiries, contact Venture Electronics now.