How to improve the success rate of PCB design?

How to improve the success rate of PCB design?

In the PCB design process, if you can predict the possible risks in advance and avoid them in advance, the PCB design success rate will be greatly improved. Many companies have a PCB design and board success rate indicator when evaluating projects.

The key to improving the success rate of a board is the signal integrity design. At present, there are many product solutions for the design of electronic systems. Chip manufacturers have already done a good job, including what chips to use and how to build peripheral circuits. In many cases, hardware engineers rarely need to consider the circuit principle, and only need to make the PCB by themselves.

But it is during the PCB design process that many companies encounter difficulties, either the PCB design is unstable or it does not work. For large enterprises, many chip manufacturers will provide technical support to guide PCB design. However, some SMEs have difficulty getting support in this regard. Therefore, we must find a way to complete it by ourselves, so a lot of problems have occurred, and it may take several versions to debug for a long time. In fact, if you understand the design method of the system, these can be completely avoided.

Let's talk about three tips to reduce PCB design risks:

1. It is best to consider the problem of signal integrity in the system planning stage. If the entire system is constructed in this way, can the signal be correctly received from one PCB to another? This must be evaluated in the early stage, and it is not difficult to evaluate this problem With a little knowledge of signal integrity, you can do it with a simple software operation.

2. In the PCB design process, use simulation software to evaluate specific traces and observe whether the signal quality can meet the requirements. The simulation process itself is very simple. The key is to understand the principle of signal integrity and use it as a guide.

3. In the process of making PCB, we must carry out risk control. There are many problems. At present, there is no way to solve the simulation software, and the designer must control it manually. The key to this step is to understand where the risks are and how to avoid them. What is needed is signal integrity knowledge.

If you can grasp these three points in the PCB design process, the risk of PCB design will be greatly reduced, the probability of errors after boarding will be much smaller, and debugging will be relatively easy.