Which parts on the PCB motherboard need a shielding cover?

Everyone knows that there are many large and small parts on the PCB motherboard, but do you know which parts on the PCB motherboard will use shielding covers? Today, Xiao Rui said which parts on the PCB motherboard need shielding cover? 1. Power module (PMU+DCDC+LDO): Normally, the power module exists as a heat source and interference source on the PCB board, and the existing effect of a shielding cover is added to it to reduce its internal and external effects. Radiated interference signals. 2. Extremely important functional module (CPU+DDR+Flash[EMMC]): The extremely important functional module is an extremely important part of the PCB motherboard. The relatively stable operation that is not susceptible to interference signals is an extremely important element for a relatively stable system. It is a functional module that is susceptible to external interference signals. Normally, electromagnetic shielding is also applied to the shielding cover made by it. 3. The coupling of Wifi and Bluetooth modules has continued to increase in recent years. The WiFi function module has also integrated many other features, such as Bluetooth. The more the collection, the more interference signals will be caused to the reception of WiFi signals. Another major The source of interference is the electrical components on the PCB board. Their high-frequency circuits during operation will cause relatively severe interference signals. At this time, most manufacturers will use electromagnetic shielding to solve this problem and eliminate or reduce the interference of the motherboard to the antenna. For signal, metal shielding can be said to be a better choice. They can effectively reduce the influence of electromagnetic shielding electromagnetic waves on the internal circuit, and naturally also block the electromagnetic waves caused by the inside from radiating outward. Of course, the location of the antenna is also very important, usually it needs to be placed in a very clean place. Finally, Xiaoshuo’s warm reminder: When making the shield, try to make the shield as rectangular and not polygonal, which will increase the production difficulty. Which parts on the PCB motherboard require shielding cover Xiaoshuo will talk about it today. Hardware, 15-year shielding cover manufacturer, with a daily production capacity of 3 million punches, and the number of 20,000+ sets of procedures should also be determined in accordance with the company’s existing mold making capabilities and stamping equipment. Shielding mold production experience, flatness control within 0.07mm , 16 strict quality inspections are the quality control, so that you can learn more about the industry in these technical consultations such as understanding whether the metal cover can shield the mobile phone signal. At the same time, you can choose among the demand shielding covers, and choose to rest assured!