How to judge the quality of circuit board?

With the rapid development of mobile phone, electronics and communication industries, it also promotes the continuous growth and rapid growth of PCB industry. People have higher and higher requirements for the number of layers, weight, precision, material, color and reliability of components. So how to judge the quality of the circuit board when purchasing? Let's introduce it in detail.

First, check whether the products meet their own product standards

When purchasing circuit boards, you can measure and test according to the products provided by their manufacturers to see whether they are consistent with the thickness and specifications of their products. If it meets the requirements, next, you can look at the light and color of the circuit board. Usually, the external circuit board is covered with ink. If the color of the board is not bright enough and there is very little ink, such a circuit board is definitely not good. In addition, due to the large number of parts of the circuit board, if the welding is not in place, the parts will easily fall off. Therefore, when selecting, we also need to see whether the welding seam meets the standard.

Second, whether the appearance and electrical connection of the circuit board meet the requirements

After observing the appearance of the circuit board, there are no problems in all aspects. After that, we still can't take it lightly. We also need to focus on whether its electrical connection meets the requirements. In order to avoid heating, short circuit or open circuit of the line during use, we need to know the line width, line thickness and line distance in detail to see whether they meet their required standards.

Third, multifaceted testing

In order to use high-quality circuit boards, you also need to test all aspects of them. Of course, before that, you need to know what advantages and characteristics high-quality circuit boards have, such as whether the mechanical properties of the circuit board surface meet the installation requirements. After understanding these, it will be easier to judge the quality of the circuit board.

To sum up, when purchasing a circuit board, it is relatively simple to find a circuit board suitable for your own use as long as you can firmly grasp the above points, not only identify its appearance, but also know its performance and structure.