Do you want to know under what environment PCB will be defective?

Do you want to know under what environment PCB will be defective?

PCB will be affected by environmental factors during use, resulting in adverse phenomena. For example, in a humid environment, in a high-temperature environment, in a dusty environment, or in a static environment, the electronic components on the PCB may be affected by oxidation, corrosion, etc., resulting in failure or performance degradation of the electronic components. In addition, the PCB may also be affected by factors such as static electricity, electromagnetic interference, and mechanical shock, resulting in circuit failure or damage. Therefore, when designing a PCB, it is necessary to fully consider the factors of the use environment, and improve the stability and reliability of the PCB through reasonable circuit layout, material selection, and protective measures.

PCB is prone to problems in wet environments

PCB (Printed Circuit Board) is an indispensable part of electronic products. It connects various electronic components and connects circuits. However, PCBs may behave undesirably under certain circumstances. Among them, the humid environment is one of the main reasons why PCBs are prone to problems. A humid environment can cause rust or oxidation of the metal parts on the PCB, which in turn can lead to a short or open circuit. In addition, the humid environment can also cause moisture damage to the electronic components on the PCB, making them unable to work properly. In a humid environment, it may also cause corrosion of electronic components and metal parts on the PCB. To avoid PCB problems in humid environments, we can take some measures, such as setting a sealed moisture-proof cover around the PCB, using electronic components and metal parts suitable for humid environments, etc. At the same time, we should also pay attention to regular inspection and maintenance of the PCB to ensure that it is in a dry environment. In conclusion, PCB is prone to problems in wet environments, we need to take measures to protect it and check and maintain it regularly.

PCB is prone to problems in a high-temperature environment

With the popularization and application of electronic products, PCB is an important part of electronic products, and its quality directly affects the performance and reliability of products. However, bad PCBs tend to show up under certain circumstances. Among them, a high-temperature environment is one of the important reasons leading to poor PCB. First of all, high temperature will cause the temperature of the components on the PCB to rise, which may cause failure or damage to the components. In addition, PCBs in high-temperature environments may experience thermal expansion and thermal stress issues, which may cause components on the PCB to loosen, fall off, or crack. In addition, high temperatures may also cause the solder joints on the PCB to crack or fall off, thereby affecting the performance and reliability of the PCB. Therefore, when designing a PCB, the environment in which the product is used should be considered, and appropriate PCB materials and components should be selected to improve the high-temperature resistance and reliability of the product. Avoid exposing the PCB to high-temperature environments as much as possible, and take corresponding measures. Protection measures, such as adding a heat sink on the PCB, improve the heat resistance of the PCB and ensure that the components and solder joints on the PCB can withstand the pressure of the high-temperature environment. JBpcb recommends using copper core PCB because its thermal conductivity reaches 398W/(m.k), which is the fastest heat dissipation in metal core PCB manufacturing.

PCB is prone to short circuits in dusty environments

As the core component of electronic equipment, PCB's performance stability and reliability are crucial to the regular operation of the entire electronic equipment. However, in some special environments, such as dusty environments, various undesirable phenomena will appear on PCBs. First of all, dust will affect the heat dissipation performance of PCB. In an environment with a lot of dust, heat sinks, fans, and other heat dissipation elements on the PCB are easily covered, resulting in a decrease in heat dissipation and causing overheating of the PCB. Secondly, dust can also cause a short circuit and poor contact with the PCB circuit. In a dusty environment, dust will accumulate on the PCB circuit board and stick to the PCB circuit board under high temperature and high pressure, resulting in short circuits and poor contact of the course, thus affecting the regular operation of the entire electronic device. Finally, dust may also affect the protection measures of PCB. In an environment with a lot of dust, the dust will pass through the protective layer of the PCB and directly invade the interior of the PCB, resulting in damage and aging of the PCB components, thereby causing the failure of electronic equipment. To sum up, a dusty environment can easily lead to PCB failure. Therefore, when using electronic equipment, try to avoid using it in a dusty environment, and clean and maintain the PCB frequently to ensure the regular operation of the electronic equipment.

PCB is easy to cause device damage in an electrostatic environment

PCB is an indispensable part of electronic products, but it may be defective in some special environments. Among them, the electrostatic environment is one of the main causes of device damage. Static electricity is the accumulation of charge due to the transfer of electrons between two dissimilar materials. When manufacturing and using PCBs, static electricity may generate high voltages in circuits, causing damage to devices. This damage is usually not immediately apparent but develops gradually over time. To avoid this from happening, there are a few precautions you can take. For example, in the PCB manufacturing process, electrostatic protection devices can be used to reduce the generation of static electricity; when using PCBs, electrostatic pads can be used to prevent the accumulation of static electricity; when handling devices, anti-static gloves and tools can be used to avoid the transmission of static electricity. In short, the electrostatic environment is an important factor leading to poor PCBs, and we need to pay attention and prevent them during manufacturing and use. Therefore, keeping the PCB in a dry environment with a suitable temperature and taking corresponding anti-static measures can effectively reduce the risk of bad PCBs.