Процесінде ПХД design, if possible risks can be predicted in advance and avoided in advance, the success rate of PCB design will be greatly improved. Many companies evaluate projects with an indicator of the success rate of a PCB design board.

The key to improve the success rate of a board is signal integrity design. In the current electronic system design, there are a lot of product plans, chip manufacturers have done, including what chip to use, how to build the peripheral circuit and so on. Most of the time, hardware engineers hardly need to consider the problem of circuit principle, just need to make their own PCB.

However, it is in the PCB design process that many enterprises encounter difficulties, either the PCB design is unstable, or does not work. For large enterprises, many chip manufacturers will provide technical support and guidance on PCB design. But some small and medium-sized enterprises are having a hard time getting such support. Therefore, you have to find a way to do it yourself, which leads to a lot of problems, which may require several editions and a long time of debugging. In fact, if you understand the design method of the system, this can be avoided.

Here are three tips for reducing PCB design risk:

In the system planning stage, it is better to consider the problem of signal integrity. The whole system is built like this. Can the signal be received correctly when transmitted from one PCB to another? This needs to be evaluated in the early stage, and it is not difficult to evaluate the problem. A little knowledge of signal integrity and a few simple software operations can do it.

In the process of PCB design, simulation software is used to evaluate the specific wiring and observe whether the signal quality can meet the requirements. The simulation process itself is very simple. The key is to understand the principle knowledge of signal integrity and use it for guidance.

Risk control must be carried out in the process of making PCB. There are a lot of problems, simulation software has no way to solve, must be controlled by the designer. The key to this step is to understand where the risks are and what to do to avoid them, again with knowledge of signal integrity.

If the three points can be well grasped in PCB design process, then PCB design risk will be greatly reduced, the probability of error will be much smaller after the board is drawn back, and debugging will be relatively easy.