PCB layout

Process of PCB layout design

Create the Schematic Blueprint
Creating a comprehensive schematic is the first step in making a PCB layout. A schematic is like a blueprint for an electronic product. Hence, it is important that we make schematics with extreme care. Hence, we use the following considerations for making a PCB layout.

  • The components are suitable and complement each other.
  • The connections between different components are well established.
  • Different groups of components have different representations within a schematic.

Complex PCB layout often requires that we revert to hierarchical schematics. Adopting the hierarchical approach allows us to make our led PCB layout more organized.
Import the schematic to a CAD tool
Once the schematic is complete, we have to refine it and convert it into a proper PCB layout. For this purpose, we have to select and use a suitable Computer Aided Design (CAD) tool. At MOKO Technology we only use the best and most sophisticated tools available. Our engineers then import the schematic into their selected CAD tool. They then modify and make necessary changes to make the schematic adjust in the CAD workspace.
Finalize the PCB Layout
Our engineers then rigorously work on it and convert it into a proper PCB layout. For this purpose, they follow standard practices and advanced techniques. Once they are done, they have a working electronic layout. The further review it to incorporate additional features to meet the needs and requirements of our clients.
Simulation and Improvement
It is often necessary to make sure that the theoretical layout will work the same way when we practically implement it. So, if we make a prototype for every theoretical layout to gauge its performance then the process will become very expensive. Hence, this is not feasible. Therefore, we tend to rely on a great technique known as simulation. We use advanced and latest tools to simulate working conditions and check the performance of our theoretical layout. This allows us to get valuable feedback from a virtual workspace and make improvements in our layout. Hence, this method of simulation is very economical, practical, and above all feasible. Additionally, this also gives us a chance to perform design optimization in Realtime.

Tips on PCB layout

Size Constraints
When we are dealing with a high speed PCB layout, the most important constraint is the size of the PCB board. Hence, designers and engineers should sit together to come up with optimal size. They also need to agree on a suitable width to length ratio.

One must make sure that the PCB is not too small. This is because the components will not fit in and the PCB will experience overheating. One must also make sure that the PCB is not too large. This is because it will lose its portability and you will face difficulty in carrying it.
Maximum Temperature
It is mainly dependent on the type of PCB you use. However, the general rule is that a PCB should not experience a temperature higher than 170 Celsius. For this purpose, you will have to rely on software that can perform the thermal simulation.
Heat dissipation
We mostly make PCB boards with copper and fiberglass. This is because the thermal conduction of copper is excellent. Hence, we can use it as a heatsink for disposing of the extra amount of heat. We can achieve this by placing a layer of copper under the components. After that, we use vias for making connections and to play the role of active thermal conduction points. Hence, this will allow us to perform effective heat dissipation.
The length of a trace is very important. So, you must ensure that you use short traces. Having a short trace will allow you to control the impedance especially in the case of signals with high frequency.
Ground plane
We must make sure that the ground planes are safe from any interruption. This is because if you break the ground plane then the returning current can change its path on the opposite layer. So, you may face unnecessary EMI problems especially in the case of signals with a high amplitude.
Differential signals
These signals have the same amplitude and frequency but they have opposite polarity. We use them for reducing distortion and noise which might arise during communication. You can fully harness the functionality of differential signals by routing them with the traces. You also need to make sure that they have the same distance and length from the respective ground plane. Hence, you can ensure that every path has the same impedance.
Components placement
Component placement is another important parameter that you need to consider. So, if you are dealing with a double layer PCB then you need to place the heavy components on the top layer. In this case, the top layer is the one that will permanently stay up in the final electronic product. Hence, you can reduce mechanical stress which might arise in respective solder joints of the electronic components. You also need to ensure that you don’t place relatively heavy electronic components on the edges of the PCB. You should rather place them in the middle of the board to avoid any bending. Placing the heavy components on the edges can also lead to distortion in the solder joints of some electronic components.

What MOKO Technology Can Do for Your PCB Projects

Project Evaluation
Our experienced engineers will thoroughly study and analyze your project. So, they will then evaluate your needs and establish your requirements. Our team will then select appropriate electronic components and perform cost reduction. They will also perform designing and assess the feasibility of manufacturing. So, all you need to do is to send us a general outline of your project idea and we will take it from there. Whether you are working on launching a new product or considering upgradation of your existing products, we can take care of it for you.
Development of Hardware and Firmware
Our R&D team is very skilled in the development of PCB boards and respective firmware. This is the very first step for establishing a connection with your smart device. Our engineers and R&D team has many years of experience in dealing with IoT applications. Therefore, we can easily help you with firmware and hardware designing.
Industrial Design
Every project has different requirements. Hence, our team will sit down with you and discuss the possible electronic architecture for your project. We will then select the best possible electronic architecture for your product. For this purpose, we employ the latest CAD tools. Hence, we can improve your PCB assembly and optimize your workflows. This allows us to come up with the best possible devices.
Software Development
MOKO technology has more than 13 years of experience in software development. Our esteemed R&D team has over 70 engineers. So, our offerings include SDK development, API development, and integration with cloud servers.
Debugging and Testing
MOKO Technology will perform thorough scanning during the PCB layout phase. So, it will allow us to maximize the testing coverage. We can also develop a relevant testing program, testing fixtures, and BIST. These will help you with the debugging and testing of your PCB layout board. Hence, you will then have a prototype that has proven its functionality through rigorous testing.
Free Prototype Samples
It is a policy of MOKO Technology to offer a small number of test prototypes to its customers. On top of that, we tend to do it with a very quick turnaround.
MOKO Technology takes pride in that we offer official certifications and compliance tests for our clients. MOKO Technology works very closely with the SGS and UL laboratory. We can, therefore, provide RoHS, ETL, FCC, UL, and CE certifications to you as per your requirements. The best part is that we provide these certifications in accordance with your project timeline.
In House Manufacturing
MOKO Technology is registered with UL, IPC, and ISO9001. We take pride in the fact that we are a renowned full-service Contract Manufacturer. We have more than 13 years of experience in developing unique electronic solutions in China. Our commitment to high performance standards, consistency, excellence, and superior quality is a testament to our manufacturing capabilities. Additionally, our NPI offerings allow us to present a unique manufacturing environment for our customers. Hence, we have the shortest turnover times between prototyping and product delivery.
Our engineers and manufacturing staff develops unique products in-house. We have our own manufacturing centers, assembling factories, and R&D offices. We are completely aware that our customers highly value discreteness and integrity. Therefore, we make special efforts to protect the IPs of our customers. We sign special non-disclosure agreements with our clients and ensure that our entire staff complies with it. This allows us to offer complete discretion in our PCB layout services cost and other dealings.

If you want to know more about our offerings or if you want to place an order then feel free to contact us. We are looking forward to working on your amazing PCB layout projects.

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