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How to make the design risk of PCB board greatly reduced?

In the PCB board design process, the success rate of printed circuit board design will be greatly improved if the possible risks can be predicted and avoided in advance.

The key to improving the success rate of the first board is the signal integrity design. Currently, there are many product plans for designing electronic systems, and chip manufacturers have already completed these plans, including what chips to use and how to build peripheral circuits. Hardware engineers rarely need to consider circuit principles, they only need to make their own printed circuit boards.

But in the printed circuit board design process, many companies have encountered difficulties, either the printed circuit board design is unstable or not working. For large enterprises, many chip manufacturers will provide technical support to guide printed circuit board design. However, it is difficult for some SMEs to get support in this regard. Therefore, we must find a way to accomplish it ourselves, which leads to many problems, which may require several versions and long time debugging. In fact, if you know the design method of the system, these are completely avoidable. Next, let's talk about three tips for reducing the risk of printed circuit board design.

1  It is best to consider signal integrity during the system planning phase. The entire system is built like this. Can the signal be correctly received from one printed circuit board to another? This requires an assessment at an early stage, but it is not difficult to assess the issue. A little of software operation can get a little knowledge of signal integrity.

2  In the design process of the printed circuit board, use the simulation software to evaluate the specific wiring and observe whether the signal quality meets the requirements. The simulation process itself is very simple. The key is to understand the principles of signal integrity and use it to guide.

3  Risk control must be carried out in the PCB manufacturing process. There are many problems that cannot be solved by the simulation software and must be manually controlled by the designer. The key to this step is to know where there are risks and how to avoid them. What is needed is signal integrity knowledge.

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

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